Conclusion

Transcription

Conclusion

STLE 2016
Student Posters
The Structure Design Method and the
Corrosion-Wear Mechanism of Functional
Gradient Nanocomposite Coatings in Simulated
Body Fluid
J. Qi, Institute of Tribology and Reliability Engineering School of
Material Science and Engineering, China University of Mining &
Technology, Xuzhou, China
Biotribology
This project puts forwards to optimize the nanocrystalline/amorphous
microstructure, multi-element doping and 2D interface structure as the
main design concept for fabricating nanocomposite coating by multifunctional plasma deposition technology. The key breakthrough for the
multilayer composite coating is that the microstructure, composition
and transition layer could be controlled precisely. Based on the
mathematical foundation of synergistic effect between corrosion and
wear, to reveal the evolutionary process of chemical constituent and
microstructure of coatings in friction test under SBF environment, and
especially pay more attention to degradation mechanisms of coating
under the conditions of multi-factor interactive-coupling effects. The
composition and structure design principles of functional gradient
composite coatings for the functionality and corrosion resistant and
anti-wear operations in SBF are established at last.
Research on Preparation and Property of
PVA-HA/PAA Composite Hydrogel
K. Chen, D. Zhang, School of Materials Science and Engineering,
China University of Mining and Technology, Xuzhou, China
Biotribology
Hydrogel is considered to be an ideal material for the implantation of
artificial cartilage. This study aims to prepare the hydrogel with high
ultrahigh mechanical strength and good friction property. Freeze
thawing, polyethylene glycol (PEG) dewatering and dehydration are
used to prepare PVA-HA/PAA composite hydrogel. Mechanical
properties and tribological properties of PVA-HA/PAA composite
hydrogel were studied. The results show that the water content can be
up to 80%. Tensile elastic modulus and compression elastic modulus of
PVA-HA/PAA composite hydrogel can be more than 5.42MPa, 1.94MPa,
respectively. Moreover, the elongation can be up to 318%. Due to the
three-dimensional network structure of PVA-HA/PAA composite
hydrogel, so it has good tribological properties. The lowest average
sliding friction coefficient can reach 0.05. With the increase of the
speed, the friction coefficient increases firstly and then decreases.
Tribocharging of Polymer Plates as Influenced
by Surface Roughness
M.B. Neagoe, Y.E. Prawatya, T. Zeghloul, D. Souchet, L. Dascalescu,
Institut P’, UPR 3346 CNRS – Université de Poitiers – ENSMA,
Angoulême, France
Surface Engineering
Previous studies have shown that the electrical charge generated by
friction between two polymers depend on many factors: nature of the
materials involved in the process, temperature and humidity of the
ambient air, mechanical load, relative speed between the bodies in
178
Society of Tribologists and Lubrication Engineers
contact, etc. The aim of this paper is to study the influence of surface
texture and roughness on electric charge generation by rubbing two
polymer plates against each other. The experiments are performed with
5-mm-thick samples, cut in two sizes: A (100 mm x 15 mm) and B (50
mm x 180 mm). The normal and tangential forces exerted on the bodies
in contact, as well as their relative speed, are continuously monitored.
The distribution of the electric charge at the surface of the samples is
measured by the capacitive probe of an electrostatic voltmeter. The
results point out that the texture and the roughness of the surfaces in
contact significantly affect the outcome of the tribo-charging process.
Correlations Between Mechanical and
Tribocharging Properties of Polymers
Y.E. Prawatya, M.B. Neagoe, T. Zeghloul, L. Dascalescu, Institut
PUPR 3346 CNRS – Université de Poitiers – ENSMA, Angoulême,
France
Materials Tribology
Electrostatic charging through friction, also designated as “tribocharging”, is determined by the nature of the materials in contact and
the characteristics of the relative motion between them. The aim of the
present study is to point out that the different mechanical properties of
the polymers in contact may influence the outcome of the tribocharging process. The materials are characterized with a universal
testing machine and a hardness tester followed by tribo-charging using
a laboratory bench. The relative speed of the two polymer plates in
conformal contact is varied between 12 to 50 mm/s, and the amplitude
of the strokes is adjusted between 36 to 60 mm. The distribution of the
electric charge at the surface of the polymers is measured by the
capacitive probe of an electrostatic voltmeter (± 10 kV). The results of
the experiments show that the control variables of the tribo-charging
process should be adjusted in relation with the mechanical properties
of bodies in contact.
Additive Interactions on Surfaces via
Temperature Programmed Desorption
M.A. Seeley, P. Shiller, G. Doll, Center for Surface Engineering and
Lubrication Research, The University of Akron, Akron, OH
Lubrication Fundamentals
Chemical interactions of various anti-wear (AW) and extreme pressure
(EP) additives were tested on different metallic surfaces for desirable
protection of machine elements from wear. Temperature Programmed
Desorption (TPD) was utilized to determine the adsorption and
desorption kinetics as well as surface reaction kinetics and mechanisms
of interactions. The TPD system operates under vacuum of 10-11 torr
with a maximum temperature of 400C. Bonding energies of the
polysulfide and di-thiophosphate (DTP) additives were ascertained.
Micro-oxidation testing was performed under a controlled flow of air
onto the lubricant containing the same additives as tested above at
temperatures of 80 to 120C for times up to 75 minutes. Infrared
analyses were performed on the material to determine activation
temperatures. X-ray Energy Dispersive Spectroscopy was employed to
compare surface compositions. Reaction mechanisms in the presence
of lubricants were compared to the vacuum mechanisms above.
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STLE 2016
The Thermo-Mechanical Coupling and Fatigue
Reliability Analysis for Friction Pair of Spindle
Brake of Wind Turbine
Y. Liu, Nanchang University, NanChang, JingXi Province, China
Wind Turbine Tribology
Spindle brake is a key part of wind turbines. Due to rapid heating and
cooling, the brake disc easily leads to generate thermal fatigue during
braking .For spindle brake of wind turbine. The distributions of
temperature field and stress field of the brake disc were obtained by
the established thermo-mechanical coupling finite element model
when braking in an emergency, and the distribution trends of physical
field in each direction were discussed. In addition, the paper also
explored the formation mechanism of thermal fatigue of brake disc
under the alternating cycle thermal stress, and analyzed the fatigue
reliability, providing technical guidance for the structure design and
engineering applications of the spindle brake of wind turbine.
Analysis on the Relation Between Wear and
Noise of Vehicle Headliner Materials
J. Park, Y. Lee, Sungkyunkwan University, Suwon-Si, The Republic
of Korea
Wear
The main sources of noise occurring inside of vehicle are door hinge
contact site, instrument panel, headliner contact spot and sunroof
contact points. Among them, this paper includes some tribological
experiments to investigate the relation between wear and noise of
vehicle headliner in the state of contacting. Having real road condition
considered in the experiment, fretting friction apparatus is used. In this
study, vehicle’s headliner material and electrodeposited metal are used
as specimens. The wear volume of both specimens is measured with
roughness gauge. Also, SPL (Sound Pressure Level) generated during
the experiment is recorded by using microphone. As a result, the noise
generated during fretting experiment increased in accordance with
increase of wear volume.
Influence of Surface Texturing on the
Performance of Tilting Pad Thrust Bearings
D. Gropper, L. Wang, T.J. Harvey, Faculty of Engineering and the
Environment, University of Southampton, Southampton, Hampshire,
United Kingdom, K. Meck, John Crane UK Ltd., Manchester, United
Kingdom, D. Nhin Ha, John Crane UK Ltd., Slough, United Kingdom
Fluid Film Bearings
Surface textures have been shown to have the potential of enhancing
the performance of hydrodynamic bearings and many other
applications. However, a comprehensive literature review by the
authors has revealed that the application of surface texturing is still
limited due to major challenges, such as the complexity of
computational models and the large variety of operating conditions
encountered in conventional industrial applications. In the present
work, the potential of surface texturing for tilting pad thrust bearings is
investigated through the development of a numerical model based on
the Reynolds equation incorporating an iterative and mass-conserving
cavitation algorithm. The influence of texturing parameters on the main
bearing characteristics is explored and the interaction between optimal
texturing parameters and operating conditions is analyzed.
Experimental work on a purposely designed thrust bearing test rig will
be carried out to validate and improve the numerical model.
180
ToF-SIMS Investigation of MoS2 After Friction
Test in Ultrahigh Vacuum
G. Colas, Mechanical and Industrial Engineering Department,
University of Toronto, Toronto, Ontario, Canada, D. Leonard, Institut
des Sciences Analytiques, Université de Lyon, CNRS, Université
Claude Bernard-Lyon, Villeurbanne, France, A. Saulot, D. Philippon,
Y. Berthier, Université de Lyon, CNRS, INSA – Lyon, LaMCoS
UMR5259, Villeurbanne, France
Materials Tribology
MoS2 is a well-known lubricant for long life space applications.
However, the role of contamination for those industrial applications
remains unclear. Two former studies performed in ultrahigh vacuum,
high vacuum, dry nitrogen, and humid air with the MoS2 based
coatings showed a potential beneficial impact of contamination in
achieving low friction and long wear life. To further substantiate these
conclusions, Time-of-Flight Secondary Ion Mass Spectrometry analyses
were performed on PVD MoS2 coatings after 3 UHV tribological tests
with exactly the same contact conditions but with different durations
(3 cycles, 10 cycles, 150 cycles). The analyses showed the MoS2 coating
is a complex MoxSyOz structure chemically rearranged into a MoSxOy
phase under friction in UHV. Then, by comparing real time
measurements and post-test results, the most probable tribologically
induced chemical reactions were identified, confirming a somewhat
beneficial impact of MoS2 internal contamination to friction.
A Novel Approach to Wear of Aluminum Matrix
Nanocomposites: A6061-Al2O3
D. Haidar, D. Burris, University of Delaware, Newark, DE
Materials Tribology
Aluminum is impeded from use in numerous sliding applications due
to a severe form of wear, termed scuffing, involving extensive subsurface
deformation and large debris formation. In this poster we report on
efforts to prevent this failure mode by using novel nanoreinforcement
methods to promote the formation of small debris. Aluminum metal
matrix nanocomposites (A-MMNC), comprised of 35 nm α-Al2O3
dispersed in 44 µm A6061, were prepared via ball milling before
compaction and sintering. Their wear resistance, debris morphologies
and surface topology were compared to stock A6061T6 by thrust
washer tribometry at variable loads and sliding speeds over thousands
of meters in dry conditions. Experiments show that the A-MMNC has
smaller debris and smoother topology compared to the control, which
provides improved scuffing resistance.
A Finite Element Study of Elasto-Plastic
Cylindrical Contact Against a Rigid Flat
A. Sharma, Auburn University, Auburn, AL
Mechanics and Tribochemistry at the Nanoscale:
Materials Tribology and Nanotribology Joint Session
This work presents a finite element study of elastic-plastic cylindrical
contact. The model considers plane stress. The simulations for a range
of material properties and interferences are carried out using ANSYSTM
software. A mesh convergence study has also been performed. The
cylinder has been modelled as a quarter circle and a straight line is
used to model the opposing rigid flat surface. The material is modelled
as elastic-perfectly plastic. The experimental results for elastic and fully
plastic cylindrical contact case are compared to other existing models
such as Hertz contact and spherical elastic-plastic models. An empirical
relationship is fit to the results to allow for prediction of the contact
area and force and a function of displacement.
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Student Posters
can be obtained through summation of the contributions from all
elements. Cases for the inclusion-induced elastic fields in joined halfspaces under the two typical interfacial conditions, perfectly bonded
and frictionlessly contact, are compared in detail; and deformations and
stresses at the interface are analyzed.
Effect of Graphite Particles on Tribological
Properties of Self-Lubricating Al-16Si-5Ni-5
Graphite Composite Under Lubricating and
Limited Lubricating Condition for Automotive
Application
Tribological Performance of DLC Coatings in
Oils Containing MoDTC
E. Omrani, Department of Materials Science and Engineering,
University of Wisconsin-Milwaukee, Milwaukee, WI, P. Menezes,
Department of Mechanical Engineering, University of NevadaReno, Reno, NV, P. Rohatgi, University of Wisconsin-Milwaukee,
Milwaukee, WI
S. Kosarieh, A. Morina, A. Neville, Department of Mechanical
Engineering, University of Leeds, Leeds, West Yorkshire, United
Kingdom
Materials Tribology
Surface Engineering
Al-16Si-5Ni-5 graphite composite has successfully synthesized as a
substitute materials for steel in piston ring materials. Under limited
lubrication, steel specimen showed higher coefficient of friction (COF)
than the Al-16Si-5Ni-5Graphite specimen. Besides, steel specimen
exhibited an increase in friction with increasing in applied load, while
Al-16Si-5Ni-5Graphite showed reduction in COF by increasing applied
load. The value of COF and AE for steel was constant at low loads up to
705N and after that a sudden increase in both COF and AE happened.
On the other hand, Al-16Si-5Ni-5Graphite composite did not exhibit
any jump in COF and acoustic emission (AE) up to 990 N load. Such
trend of results suggests that Al-16Si-5Ni-5Graphite composite specimen
would perform better than steel under limited or boundary lubrication
condition. Results from Pin and Vee Block method show that Composite
tested samples exhibit lower COF than steel in non-lubricated through
certain time frame.
Molybdenum Dithiocarbamate (MoDTC) is a well-known friction
modifier which has been used for ferrous surfaces for quite long time.
However, our previous study showed the adverse effect of MoDTC in
increasing wear of a hydrogenated DLC coating in a DLC/steel contact.
The main focus of this work was to investigate the effect of counterpart
type on MoDTC-induced high wear to DLC coatings. The experiments
were carried out using a pin-on-plate tribotester lubricated in oils
containing MoDTC. The plates were HSS steel plates coated with
hydrogenated DLC (a-C:15 H) coatings which were sliding against cast
iron pins and silicon nitride balls. This study revealed that the steel
counterpart is a critical component of the tribocouple that leads to
MoDTC-induced high wear of hydrogenated DLC.
Effect of Polymer Structure on Viscosity
Modification in Engine Oil
Tribological Properties of Bio-Inspired Surfaces
by Application of Metal Additive Manufacturing
M. Savoji, T. Lodge, M. Hillmyer, Department of Chemistry, University
of Minnesota, Minneapolis, MN, K. Schimossek, Evonik Resource
Efficiency GmbH, Kirschenallee, Germany
K. Sugiyama, S. Sasaki, C. Tadokoro, Department of Mechanical
Engineering, Tokyo University of Science, Tokyo, Japan
Surface Engineering
The purpose of this research is to materialize the biomimetics surface
which provides requirements for the appropriate place via canal like a
blood vessel. As a fundamental research of that, we designed a
structure named dimples network: all adjacent dimples were connected
beneath the sliding surfaces. Besides we designed ooze out lubrication
by use of networked dimple: Superabsorbent polymer gel ooze outs
from the networked dimples in the presence of water. The present
research deals with the measurement of friction properties of the ooze
out lubrication and its comparison with other surface texturing
structures. Disk specimens were made by Selective Laser Sintering 3D
printer, and friction coefficient were measured with a plate-on-disk
friction tester. Results of the tests suggested that ooze out lubrication
reduces and stabilizes COF. Ooze out lubrication, which has potential to
supply material stably, could be one of the effective approach to realize
biomimetics surface.
Comparisons of Elastic Responses Due to
Eigenstrains in Two Joined Half-Spaces Under
Two Types of Interfacial Conditions
H. Yu, Z. Wang, State Key Laboratory of Mechanical Transmission,
Chongqing University, Chongqing, China, Q. Wang, Department of
Mechanical Engineering, Northwestern University, Evanston, IL
Elastic responses caused by arbitrary inclusions inside one of the two
joined half-spaces are solved for the cases where the Galerkin vectors
for the inclusion in the half-space solid are known. Two sets of solutions
have been developed, one for perfectly bounded half spaces and the
other for frictionless bonding between the two. By discretizing the
arbitrarily shaped single or more inclusions into a number of small
elementary cuboids, the entire elastic response due to the inclusions
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Thermally responsive polymers have been widely used to improve
engine oil performance under various working conditions. Such
polymeric additives can change their conformation or state of
aggregation with temperature. As a result, they can impact oil viscosity
to obtain efficient cranking in cold engines, as well as improved
protection of the metallic parts at elevated temperatures. To date, there
are few reports in the literature on how structural properties of such
polymers influence their performance as viscosity modifiers. We
explored novel polymeric additives based on graft copolymers of
polyolefins. Well-defined polymer structures with precise control over
composition and molar mass were produced and applied in engine oils
to achieve desirable viscosity-temperature behavior.
Simulation of Running-In Process of Line
Contacts in Mixed Lubrication Conditions for
a Reciprocating Motion
Y. Zhang, Y. Meng, State Key Laboratory of Tribology, Tsinghua
University, Beijing, China
Wear
A 2-D model that predicts the sliding friction and wear process between
surfaces with roughness in line contacts is presented. The numerical
approach is established on the basis of the statistical solution of mixed
lubrications, which can calculate the asperity contact pressure and fluid
hydrodynamic pressure by using the elastic-plastic contact model and
the average flow model respectively. Wear occurs in the locations where
the asperities come into direct contact with relative motion and the
mixed lubrication condition is transformed into a new transient balance
due to the extension of the contact region. The surface shape and
roughness computed with the Archard’s wear law are changing with
the wear process, which influences the hydrodynamic and asperity
contact pressure and then changes the friction coefficient of the
contacting tribopairs. The 2-D model has higher calculation efficiency
than 3-D model and so it can deal with the reciprocating motion in
mixed lubrication.
71st Annual Meeting & Exhibition Program Guide
181
STLE 2016
Analysis of Black Hydraulic Oil Coming from
Concrete Pump Truck
Z. Liu, H. Wang, S. Li, X. Miao, PetroChina, Dalian Lubricating Oil
Research & Development Institute, Dalian, Liaoning, China
Synthetic and Hydraulic Lubricants
This work concerns black hydraulic oil coming from concrete pump
truck. Herein, we present the analytical results of black hydraulic oil by
ICP, LPA, SEM and EDAX. It was shown that black hydraulic oil involved
some metal element coming from the exterior pollution or mechanical
wear. LPA indicate that nanoscale particles caught the hydraulic oil
turning black. CaCO3 may be possibility of pollution. The detailed
analytical results of hydraulic oil and filtration particles are helpful for
researchers to keep the lubricant oil serving much better.
Development of Synthetic Skin Simulants to
Estimate Skin Friction Damage: Design
Considerations
G.P. Chimata, C.J. Schwartz, Department of Mechanical Engineering,
Iowa State University, Ames, IA
Effect of Laser Surface Texture on Lubricant
Replenishment and Wear Behaviour in a
Reciprocating Line Contact
S.C. Vladescu, T. Reddyhoff, Imperial College London, London,
United Kingdom
Engine and Drivetrain
The study aims to understand the interactions between laser-produced
surface texture and wear behaviour in an automotive piston-liner
pairing. To do this, a recently developed, reciprocating, test apparatus
that closely replicates the contact between the top piston ring and
cylinder liner was used to conduct wear tests under highly loaded
conditions. As the specimens became worn, the contact progressed
further into the mixed and boundary regime. This lead to a significant
improvement in the relative performance of the textured specimens,
showing reductions in friction of up to 70%, compared to the nontexture case. Wear volumes decreased monotonically with increasing
pocket volume, irrespective of whether the pockets reduced friction.
This suggests that, in addition to providing a hydrodynamic film
thickness boost, pockets act as reservoirs, which increase the supply of
lubricant to the contact, particularly after reversal when the cavitated
outlet becomes the starved inlet.
Biotribology
Synthetic skin simulants as tribological testbeds to assess the effects of
various surfaces on skin such as fabrics, packaging materials, and
medical devices are increasingly seen as viable alternatives to humansubject testing. An elastomeric skin simulant with layered structure
similar to that of a human skin was constructed to replicate skin friction
blisters. The relationship between applied normal load and the number
of cycles of reciprocating motion required for blistering was studied.
Assumptions required for mechanical modelling of the simulant
indicated that investigating the role of surface topography and elastic
properties of the human skin on friction could provide a more
comprehensive understanding of the underlying mechanics, and can
help develop better skin simulants. Coefficient of friction of four
probing surfaces, human index finger pad, silicone replicas of the finger
with and without fingerprints, and a smooth silicone sphere were
compared to identify these roles.
Kinetics Analysis and Nonlinear Vibration
Analysis of NN-Type Planetary with Small Tooth
Number Difference Considering Friction Effect
Z.- Geng, Chongqing University, Chongqing, Chongqing, China,
K. Xiao, J. Wang, State Key Laboratory of Mechanical Transmission,
Chongqing University, Chongqing, China, C. Huang, School of
Advanced Manufacturing Engineering, Chongqing, China
Gears
A nonlinear vibration model for the NN-type planetary reducer with
small tooth number difference, coupling multi-factors is proposed to
analyze the effects of geometric parameters on the nonlinear vibration
characteristics. Meanwhile, the friction coefficient is influenced by the
lubrication condition. And the lumped mass method, Lagrange
equation, and fourth-order fifth-grade RKF method is used to solve the
nonlinear differential equations. The time-varying mesh stiffness is
fitted using 8-order Fourier series, and the meshing angle frequency is
treated to a sine function of angular velocity, in order to study the gear
transmissions error. A series of simulations were conducted on fixed
gear that the gear vibration displacements, velocity responses, and the
vibration displacement-velocity phase portraits, Poincaré sections are
analyzed systematically. The elasticity viscous meshing forces of gear
pair, bearing dynamic loads, and vibration acceleration responses are
further calculated.
182
Triboemission Imaging
A. Ciniero, Imperial College London, London, United Kingdom
Tribotesting
This poster describes a new technique to measure the spatial
distribution electrons that are emitted from a sliding asperity contact.
Electron maps are compared to SEM images of the worn specimen
surfaces to shed light emission mechanisms and demonstrate that this
technique can be used to monitor surface damage.
Investigation of White Etching Crack (WEC)
Failures in Wind Turbine Bearings
H. Singh, G.L. Doll, The University of Akron, Timken Engineered
Surfaces Laboratory, Akron, OH, A. Greco, Argonne National
Laboratory, Argonne, IL, H. Qin, Department of Chemical
Engineering, The University of Akron, Akron, OH
White etching cracks (WEC) have been observed as the dominant
failure mechanism in wind turbine gear boxes. The mechanisms leading
to the formation of WEC’s are currently not well understood. In this
work, AISI 52100 cylindrical roller bearings were tested under sinusoidal
loads in a custom built test rig. The bearings were dynamically loaded
at regular intervals at about 2 GPa. Tests were conducted using
polyalphaolefin basestock (PAO-ISO10) oil and fully formulated wind
turbine gearbox oil. The bearing inner raceways were sectioned and site
specific cross-sections were analyzed under optical microscopy. The
post-test examination revealed white etching areas, microstructural
alterations and internal cracks.
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Student Posters
A Study of Microstructure Alteration in SAE 52100
Bearing Due to Classic Rolling Contact Fatigue
and White Etching Crack
V. Smelova, L. Wang, T.J. Harvey, National Centre for Advanced
Tribology at Southampton (nCATS), Faculty of Engineering and
Environment, University of Southampton, Southampton, United
Kingdom, A. Schwedt, J. Mayer, Gemeinschaftslabor für
Elektronenmikroskopi (GFE), RWTH Aachen University, Aachen,
Germany, W. Holweger, Schaeffler Technologies GmbH & Co. KG,
Herzogenaurach, Germany
strongly to native iron highly reducing its surface energy. Due to a
passivating effect, the metal surfaces coated by graphene become
almost inert and present very low adhesion and shear strength when
mated in a sliding contact. We perform pin-on-disc experiments that
confirm the friction dependence on the concentration of graphene
flakes in the lubricant solution, as predicted by the simulations. We also
establish a connection between the tribological and the electronic
properties of the interface, which is relevant to understand the
fundamental nature of friction.
Fatigue Life Evaluation of Thrust Needle Roller
Bearings Under Boundary Lubrication
Z. Wang, X. Shen, X. Chen, Department of Mechanical Automation
Engineering, Shanghai University, Shanghai, China, Q. Yu,
Pennsylvania State University, State College, PA
Formation of the subsurface White Etching Crack (WEC) has been
identified as a cause of detrimental failures in SAE 52100 and SAE 4320
bearing steels that appears to be different from the classic Rolling
Contact Fatigue (RCF) in a wide range of rolling contact applications.
Typically, RCF failures are due to medium to high contact pressure and
high rolling cycles, where a sequence of microstructural transformations
takes place, starting from Dark Etching Regions (DER) then Low- and
High- Angle Bands (LAB/HAB) and leading to long but finite life of
bearings. Little detailed research has been conducted in recent years to
investigate the differences between RCF and WEC. This study, for the
first time, has analyzed the microstructure changes in DER, HAB and
LAB using a combination of Electron Channelling Contrast Imaging
(ECCI), Energy-dispersive X-ray Spectroscopy (EDX) and Electron
Backscatter Diffraction (EBSD) techniques to reveal differences and
relationships between RCF and WECs.
Rolling Element Bearings
Thrust needle roller bearings are usually designed to transmit heavy
axial load and operate at relatively low speed conditions because of
the significant sliding between the raceway and the roller, thereby
often works under boundary lubrication regime. Under such lubrication
regime. The properties of the boundary film determine the contact
friction coefficient and propagation of surface damage. This work will
focus on developing a two-dimension boundary lubricated contact
model of thrust needle roller bearings considering the effect of
tribofilm and mild wear, then incorporate it into the surface fatigue life
model. For given load, speed, geometry parameters, bulk temperature,
the model will yield a number of the variables useful for the assessment
of the state of the thrust needle roller bearings. They include variation
of the pressure in time, degree of the wear and the remaining life.
Oil-Soluble Organo-Silver Additive Designed
for In Situ Deposition of Metallic Silver at
High Temperature
B. Johnson, Q. Wang, Mechanical Engineering, Northwestern
University, Evanston, IL, M. Desanker, M. Delferro, T.J. Marks,
Chemistry, Northwestern University, Evanston, IL, A. Seyam, H. Bazzi,
Chemistry, Texas A&M Qatar, Doha, QATAR; Y. Chung, Materials
Science, Northwestern University, Evanston, IL, A. Erdemir, A. Greco,
Argonne National Laboratory, Argonne, IL
Wear
A major challenge for advancing lubrication technology is to improve
lubricant performance at temperatures that exceed the decomposition
temperature of conventional base oils. Soft noble metals, such as silver,
have low reactivity and shear strength making them ideal solid
lubricants for providing beneficial wear protection and low friction
between contacting surfaces at high temperature. However, achieving
adequate dispersion in engine lubricants and silver deposition at
specific temperatures presents a significant challenge. We report the
synthesis, characterization, and tribological implementation of the
trimeric silver pyrazolate complex, Ag(3,5-dimethyl-4-n-hexyl-pyrazole).
This complex is oil-soluble and undergoes clean thermolysis at ~310 oC
to deposit lubricious, protective metallic silver nanoparticles on
mechanical surfaces. Temperature controlled tribometer tests show that
an optimized 2.5 wt% loading of 1 reduces wear by 60% in PAO4.
Tribochemistry of Steel Lubrication by Graphene
P. Restuccia, D. Marchetto, S. Valeri, Dipartimento di Scienze Fisiche,
Informatiche Matematiche, Universita’ degli Studi di Modena e
Reggio Emilia, Modena, Italy, C. Righi, CNR-Institute of Nanoscience,
S3 Center, Modena, Italy
An Analysis of Generated Fractal and Measured
Rough Surfaces
X. Zhang, Y. Xu, R. Jackson, Department of Mechanical Engineering,
Auburn University, Auburn, AL
Surface Engineering
This work studies the fractal dimensions of the rough surfaces
calculated by several existing methods. Two methods for generating
rough surfaces are used in this work. The first one is to reconstruct the
rough surface through the inverse Fourier transform based on a
prescribed Power Spectrum Density (PSD) and the other one is using
the Weierstrass-Mandelbrot (W-M) function. The fractal dimension
values of all the rough surfaces are calculated by four different
methods, namely, (1) box-counting method, (2) roughness-length
method, (3) power spectral density method and (4) variogram method.
Then the results from these four methods are compared. Since fractal
surfaces are always clarified either as self-similar (scaling ratio is the
same in all directions over scales) or as self-affine (scaling ratio varies in
prescribed fashion over scales), it can be found that the fractal
dimension values are not the same after analyzing the generated selfsimilar rough surfaces by these two methods.Therefore, it is
questionable if the fractal dimension is an accurate parameter for
characterizing real rough surfaces. The fractal dimension values for real
rough surfaces, as well as some other parameters are also calculated by
four different methods. The analysis indicates that real rough surfaces
are not perfect fractals as researchers and engineers consider.
Nanotribology
Recent tribological experiments revealed that graphene is able to
lubricate effectively macroscale steel-on-steel sliding contacts. This
effect was attributed to a mechanical action of graphene related to its
load-carrying capacity. We provide further insight into the functionality
of graphene as lubricant by analyzing its tribochemical action. By
means of first principles calculations we found that graphene binds
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183
STLE 2016
Exploring the Effect of Hydrogen in White
Structure Flaking (WSF) of Wind Turbine Gearbox
Bearings Through Metallographic Analysis
M. Ingram, Afton Chemical Ltd., Bracknell, United Kingdom,
A.D. Richardson, L. Wang, M. Evans, R. Wood, National Centre for
Advanced Tribology Southampton (nCATS), University of
Southampton , Southampton, Hampshire, United Kingdom
White structure flaking (WSF) due to White etching crack (WEC)
formation below the contact surface is a premature failure mode in
steel bearings that occur in wind turbine gearboxes. Initiation
mechanisms and drivers of WSF are contested. Hydrogen diffusion into
the bearing during operation is thought to be one driver of WSF.
Thermal Desorption Spectroscopy (TDS) coupled with extensive
metallographic analysis has been conducted on rolling contact fatigue
(RCF) tested cylindrical roller bearings on an FAG-FE8 rig under Nonhydrogen charged conditions over increasing test durations until
failure. Metallographic analysis has shown that there is evidence to
suggest that the concentration of mobile diffusible hydrogen measured
through TDS is potentially linked to the propensity and extent of WEC
formations. Metallographic analysis has also revealed that the direction
and magnitude of slip has a significant effect on the formation of WECs.
Mechanism of Tribofilm Formation Under
Boundary Lubrication in Oils with Nanoparticles
V. Sharma, Department of Materials Science and Engineering,
he University of Texas at Arlington, Arlington, TX, R. Timmons,
Department of Chemistry and Biochemistry, The University of
Texas at Arlington, Arlington, TX, A. Erdemir, Argonne National
Laboratory, Argonne, IL, P.B. Aswath, Department of Materials
Science and Engineering, The University of Texas at Arlington,
Arlington, TX
Zinc dialkyl dithiophosphate (ZDDP) is the main workhorse antiwear
additive that also doubles as an antioxidant in engine oils for light and
heavy duty vehicles. However, a significant demerit in the use of ZDDP
is the creation of sludge in the oil and the deposit of volatile phosphate
glass on catalytic convertors that reduce their efficiency and increase
the amount of emission. There have been many studies tailored around
development of alternatives to ZDDP. In our approach we use a method
wherein we use nanoparticles as additives to reduce wear and friction
under tribological conditions. Surface analytical tools such as XPS and
XANES were used to evaluate the mechanism of tribofilm formation
using this approach. The local coordination chemistry of the elements
in the tribofilm were determined and helped provide insight into the
chemical makeup of the films responsible for providing improved wear
and friction.
Tribological Properties of PDA/PTFE Coating
under Lubricated Condition
Y. Zhao, M. Zou, Department of Mechanical Engineering, University
of Arkansas, Fayetteville, AK
Surface Engineering
The objective of this work is to investigate the effect of liquid
lubrication on the tribological properties of the Polydopamine
(PDA)/polytetrafluoroethylene (PTFE) coating under severe operation
condition. The wear process of a PDA/ PTFE coating in lubricated
condition was tested under 1.5 GPa contact pressure in a rotatory
oscillating motion using a ball-on-disk configuration of the UMT-2
tribometer. A normal load of 15 N was applied with the sliding speed of
0.1 m/s. A 3-D laser scanning microscope was used for high resolution
3D imaging of the wear track and the counterface.
184
Effect of Molecular Features on the Coil Size
of Model Viscosity Index Improvers
U. Ramasamy, A. Martini, University of California-Merced, Merced,
CA, S. Lichter, Northwestern University, Evanston, IL
Temperature-induced changes in coil size have been proposed as the
mechanism underlying the functionality of viscosity index improving
polymers. Here, molecular dynamics simulations are used to
characterize the temperature-coil size response of model additive
polymers, when these polymers are placed in an alkane solvent. The
simulations reproduce experimental observations, where only some
polymers increase in size with increasing temperature. Additionally, the
simulations are also used to explore the effects of polymer chemistry
on temperature induced coil size behaviors. Our findings indicate that
the presence of oxygen atoms in the polymer structure is a key factor
in determining whether the polymer expands or contracts. This
simulation approach provides a general methodology for investigating
temperature-induced coil size changes in polymeric lubricant additives
and enables investigation of specific atomic-scale features.
Effect of Annealing on Wear Behavior of Atomic
Layer Deposition Alumina Films
Z. Hsain, G. Zeng, B. Krick, Department of Mechanical Engineering
and Mechanics, Lehigh University, Bethlehem, PA, R.J. Marstell, N.C.
Strandwitz, Department of Materials Science and Engineering,
Lehigh University, Bethlehem, PA
Materials Tribology
Atomic layer deposition (ALD) is commonly used to deposit thin films
with nanoscale resolution and high conformality. ALD alumina films, in
particular, are increasingly used as protective coatings on MEMS/NEMS
to optimize the performance of contacting parts. However, there is still
a gap in understanding of the wear properties of these films. Here,
ALD-deposited alumina films were studied to determine the effect of
annealing temperature on wear rate. The films were deposited using
trimethylaluminum and water on a silicon substrate. Several samples
were annealed at 450C, 800C, 900C, 1000C and 1100C for an hour. Wear
testing was conducted on each sample using a silicon carbide probe
in a custom-built micro-tribometer. Samples annealed at higher
temperatures exhibited lower wear rates. The increase in wear
resistance can be attributed to the crystallization and densification of
the films during annealing at temperatures above 1000C.
Tribological Rehydration: A New Lubrication
Mechanism for Biphasic Materials
A.C. Moore, Department of Biomedical Engineering, University of
Delaware, Millsboro, DE, D. Burris, Department of Mechanical
Engineering, University of Delaware, Newark, DE
Biotribology
Cartilage achieves its unusual tribological functionalities through a
unique mechanism known as interstitial lubrication. Interstitial fluid
pressure develops in response to tribological contacts to lower matrix
stresses, friction, and wear by at least an order of magnitude. It has
been shown that if the contact moves faster than the exudation rate of
the interstitial fluid the loss of fluid from the contact can be prevented,
unfortunately there are invariably periods of static loading that occur
throughout a person’s daily routine. The question remains as to how
fluid is transported back into the cartilage. The goal of this study is to
demonstrate that under physiological speeds cartilage can pump fluid
back into the interface and rehydrate the contact. The mechanism,
which we term tribological rehydration, is able to rapidly decrease
friction and re-pressurize the contact. These findings suggest that
conditions of high friction and wear in cartilage are short lived
transient events.
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STLE 2016
The Use of an Energy Criteria to Predict White
Etching Crack Formation in Bearing Steel
Investigation of Temperatures Capability to
Detect Failure in Aeronautical Gearboxes
A. Greco, M. Scepanskis, Argonne National Laboratory, Argonne, IL,
B.J. Gould, Department of Mechanical Engineering, University of
Delaware, Wilmington, DE
T. Touret, LaMCos INSA Lyon, Villeurbanne, Rhone, France
White etching cracks (WECs) have been identified as the dominant
mode of premature failure for bearings within wind turbine gearboxes.
Though WECs have been observed in the field for over a decade, the
exact mechanisms which lead to this failure are still debated.
Subsequently the prediction of these cracks has been close to
impossible. Previous work has postulated that the formation of the
microstructural alterations associated with WECs is due to large local
energies that lead to atomic diffusion or recrystallization within the
steel. The aim of the current work is to correlate the formation of WECs
in a three ring on roller contact to the total frictional energy generated
at the contact. It was found that the presence of WECs could be
accurately predicted by this criteria regardless of changes in load,
sliding, lubrication condition, and run time. The ability to accurately
predict the point that WECs form in a sample allowed for a study of the
process by which these cracks initiate.
Modeling the Effects of Nanoparticle Size and
Surface Roughness on Friction in Boundary
Lubrication
A. Martini, H. Gao, University of California-Merced, Merced, CA
Nanoparticles have shown promise as lubricant additives to improve
the performance of tribological components. In this work, titanium
dioxide (TiO2) nanoparticle additives were studied using molecular
dynamics simulation. The model system described TiO2 nanoparticles
dispersed in polyalphaolefin (PAO) base oil in boundary lubrication.
Effects of particle size and surface roughness were examined, based on
which a correlation between friction, particle size and surface
roughness was identified. Finally, the simulations were used to explore
the mechanisms by which nanoparticles affect friction in boundary
lubricated systems.
Janus Blocks: A Binary System Wear Stability
W. Sawyer, University of Florida, Gainesville, FL, K. Harris,
Department of Materials Science & Engineering, University of
Florida, Gainesville, FL, M.R. Jones, Department of Mechanical
Engineering, University of Florida, Gainesville, FL, A.I. Bennett,
Tribology, University of Florida, Gainesville, FL
Condition Monitoring
Condition monitoring (CM) revealed itself as a good alternative to the
challenging prediction of damage occurrence in gearboxes. Dynamic
and acoustic CM face major difficulties due to signal processing and
sensitivity to complex events in different components. An alternative
approach consists in studying temperatures. In wind turbine gearboxes
this kind of method is investigated based on data driven model. In this
study, analyses are conducted on airplane systems. By using a physical
model, the thermal network method, it may be possible to estimate
temperatures on moving elements which are difficult to measure. It is
also possible to evaluate the temperature response to certain damage
such as micropitting. A method is proposed to assess the capability to
identify failure in aeronautical gearboxes through temperature
estimation based on a physical model.
Modeling Nanoscale Wear of an Atomic Force
Microscope Tip during Run-in
X. Hu, A. Martini, University of California-Merced, Merced, CA,
V. Altoe, Lawrence Berkeley National Laboratory, Berkeley, CA
Wear
Nanoscale wear between a scanning probe tip and substrate is of
fundamental importance in nanoscale measurement and manufacturing.
In this work, molecular dynamics (MD) simulation is employed to study
the nanoscale wear of a silicon atomic force microscope (AFM) tip with
a native oxide during the first tens of nanometers of sliding against an
amorphous silicon dioxide substrate. The size and shape of the tip apex
and the crystallographic planes in contact in the MD model are defined
to be comparable to those in a corresponding AFM experiment where
the tip is imaged using ex situ transmission electron microscopy. In
both simulation and experiment, the material removal from the tip as
well as the crystallinity of the material within the tip is characterized.
The wear in the simulation is consistent with that measured in AFM
experiments and the results provide insight into the mechanisms of
shear-induced silicon amorphization and nanoscale wear during the
initial sliding period.
Thermo-Mechanical Behavior Study of Rolling
Element Bearings
D. Niel, LaMCos, Villeurbanne, Rhône-Alpes Auvergne, France,
F. Ville, LaMCos, Villeurbanne, France; C. Changenet, ECAM Lyon,
Lyon, France
Wear
A simple binary model is devised that describes the wear behavior of
two blocks coupled under a constant, dynamically partitioned normal
load. In this simple system, the frictional force is reacted by two
independent springs and the blocks are allowed to move and wear
independently. The only coupling between the blocks occurs through
the partitioning of the applied normal load, which uses a pair of springs
in parallel to model elasticity. This system is found to preferentially wear
one of the blocks until two disparately unique conditions are reached:
(1) the partitioning of the load between the blocks yields equal wear
and thus steady partitioning of the load, and (2) the pair of blocks go to
zero wear by having one block not sliding but carrying all of the load
and the other block slipping but carrying none of the load. These “Janus
Blocks” begin life in a nominally identical state and then their behavior
bifurcates, producing runaway or irregular wear.
186
Rolling element bearing (REB) is an essential component in mechanical
transmission because it reduces friction between two rotating parts
thanks to rolling elements. REB is widely used on speed rotation
systems and may operate at high rotational speeds. In literature, many
models have been developed for bearing friction prediction (Harris,
SKF). But they do not take sufficient account of the REB thermal
behavior. In order to predict the fiction torque in accordance with the
thermal behavior, the thermal network method is used. Based on
generalized Ohm’s law, this method enables to predict heat flux
through the different elements and to take into account thermomechanical couplings in power losses estimation. A new rig test is
developed to analyze different operating conditions: rotational speed
up to 18,000 rpm, oil bath or oil jet lubrication. Temperature at several
locations (inner and outer ring, shaft and housing) and the friction
torque for several REBs are measured.
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Student Posters
Analysis of Rolling Contact Fatigue on
Aeronautic Gears
An Elastic-Plastic Sinusoidal Contact Model
Under Combined Normal and Tangential Loading
G. Vouaillat, F. Ville, Systèmes Mécaniques et Contacts, Laboratoire
de Mécanique des Contacts et des Structures, Villeurbanne, France,
X. Kleber, MATEIS, Villeurbanne, France, J. Noyel, C. Changenet, ECAM
Lyon, Lyon, France, S. Rathéry, Hispano-Suiza, Colombes, France
X. Wang, Y. Xu, R. Jackson, Department of Mechanical Engineering,
Auburn University, Auburn, AL
Nanotribology
It is commonly accepted that surface micro-geometry of industrial
equipment like gears can have a pronounced impact on rolling contact
fatigue life of these components. For example, dents or machining
roughness can lead to premature failures such as micropitting. In this
study, experiments are performed on a twin-disc machine to
investigate the failure mechanisms at the microstructure scale. In
particular, crack initiation and propagation are analyzed in a
homogeneous material (AISI 52100) as the outcome from surface
micro-geometries on the discs (dents, more realistic roughness). These
results feed and validate a numerical model at a grain scale. It is based
on the analysis of crack initiation produced at the material grain
boundaries. The main issue of this study is to produce a validated
numerical model with the operating conditions exposed above.
Sinusoidal contact between a deformable sinusoidal surface and a
rigid flat under combined normal and tangential loading is investigated.
This work uses a finite element method (FEM) to characterize the
elastic-plastic sinusoidal contact. The sliding inception is determined by
using the maximum shear stress criterion. A gradual increase of this
tangential load, while the normal preload remains constant, leads to
appreciable junction growth. The maximum static friction force is
investigated at a wide range of normal loads and maximum shear
strengths. The sinusoidal case is very similar to the spherical contact
under a small normal load. Once the normal load reaches a certain
range, the two cases begin to differ significantly. For instance, the
coefficient of friction is much lower for the sinusoidal case than the
spherical case. An equation of the coefficient of friction was found by
fitting to the FEM results. An expression of the tangential stiffness in
pre-sliding is also provided.
Mechanisms of Formation of a Tribofilm
Through a Nanolubricant
Molecular Dynamics Simulation of Nanoscale
Contacts in Atomic Force Microscopy
H. Liang, W. Dai, Mechanical Engineering, Texas A&M University,
College Station, TX, B. Kheireddin, H. Gao, Shell Technology Center,
Houston, TX
R. Chen, X. Hu, A. Martini, University of California-Merced, Merced,
CA, S. Vishnubhotla, S.R. Khanal, T.D. Jacobs, University of
Pittsburgh, Pittsburgh, PA
Nanotribology
Nanotribology
Tribofilms play important roles in friction control and wear protection.
In this presentation, a new tribofilm formed by using α-ZrP
(Zr(HPO4)2H2O) as an antiwear additive will be reported. In a base
oil containing 0.1 wt% additive, it was found that friction and wear
were significantly reduced and a tribofilm was formed. In comparison
with a base oil containing 0.8wt% ZDDP, the friction was reduced for
50% and wear 30%. Spectroscopic characterization indicated that the
tribofilm consists of iron oxide, zirconium oxide, and zirconium
phosphates. The worn surface was seen to be smooth which renders it
desirable for bearing systems. The mechanisms of tribology formation
are discussed here.
Understanding the mechanical behavior of nanocontacts is critical for
probe-based microscopy, nanomanufacturing, and other applications
whose function or accuracy is determined by the properties of contact
between two nanoscale bodies. To investigate the properties of
nanocontacts, we use molecular dynamics (MD) simulation, which
provides atomic-scale information about phenomena occurring inside
the perimeter of a contact. Here, we build an atomistic model of
nanocontacts between an AFM tip and a counter-surface. The atomistic
model is designed to match the geometry, interaction strength, and
normal load of a corresponding AFM experiment. With the physicallyrealistic MD model, we investigate the interaction force between the
two contact surfaces and the elastic and plastic deformation of the
AFM tip during the loading and unloading processes. Additionally, we
calculate the real and apparent contact areas and evaluate them in the
context of continuum adhesive contact model predictions.
Wear
Effect of Nanoscale Fluid Confinement on
Elastohydrodynamic Lubrication
M. Len, U. Ramasamy, A. Martini, University of California-Merced,
Merced, CA
Fluid Film Bearings
The elastohydrodynamic lubrication (EHL) regime is characterized
by elastic deformation of the bodies in contact, hydrodynamics of
viscous friction caused by shearing the lubricant, and dramatic viscosity
increase due to high pressure. As technology for mechanical
components advances towards higher energy efficiency and less
energy loss from viscous friction, lubricant films are decreasing towards
nanometer scale thicknesses. However, these lubricant films may
behave differently from what is predicted by classical EHL theory,
because extreme confinement can affect the viscosity of the lubricant.
We attempt to improve the ability of EHL simulations to accurately
capture the behavior of ultra-thin film lubricated interfaces by
incorporating empirical models that describe the effect of confinement
on fluid viscosity. The enhanced model reproduces trends seen in some
EHL experiments where the film thickness of very thin film lubricants is
larger than expected based on classical EHL theory.
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Quantitative Measurements of Lubricant
Contaminants Using a Microsensor Array Based
on Back Propagation Artificial Neural Network
X. Zhu, L. Du, J. Zhe, Department of Mechanical Engineering,
The University of Akron, Akron, OH
We present a sensor array for quantitative measurements of four
important lubricant properties, namely, water, total acid number, soot
and sulfur content. The sensor array consists of four micromachined
electrochemical sensors and a back propagation artificial neural
network (BPNN). While each sensor responds to all four properties
(cross-sensitivity), the designs ensure each sensor respond to the four
properties differently. The BPNN was applied to solve the cross
sensitivity problem and pinpoint each property from the sensor array’s
response. After training, one architecture with 4, 50, 5, and 4 neurons in
the input layer, first and second hidden layer, and output layer was
selected. Testing results demonstrated that the developed network can
quantitatively determine the aforementioned four lubricant properties
with a maximum error of 18.8%, 6.0%, 6.7%, and 5.4%, respectively,
indicting the sensor array could be potentially used for online lubricant
condition monitoring.
187
STLE 2016
Durable, Low Friction Engineered Surfaces Using
Deformation Resistant Core-Shell Nanostructures
Lubrication Properties of Mixed Bio-Lubricant
from Coffee Dregs
R.A. Fleming, M. Zou, Department of Mechanical Engineering,
University of Arkansas, Fayetteville, AK
J.H. Horng, J.S. Chen, W.J. Chen, Power Mechanical Engineering,
National Formosa University, Yulin, Taiwan
Nanotribology
Environmentally Friendly Fluids
Nanoscratch testing has been performed on engineered surfaces
patterned with arrays of Al/a-Si core-shell nanostructures (CSNs) to
assess the frictional and deformation behavior of these surfaces.
Significantly lower coefficient of friction (COF) and minimal detectable
nanostructure deformation are observed for scratches on the CSNs, in
contrast to the surfaces patterned with bare Al nanostructures, which
show both higher COF and heavy deformation of the Al nanostructures.
Molecular dynamics simulations show that dislocations nucleated in
the cores of the CSNs during loading are readily absorbed by the a-Si
shell after removal of the applied load, leading to deformation recovery
of the CSNs after unloading. In comparison, the dislocations generated
in Al nanostructures are much more stable and lead to the permanent
deformation of the Al nanostructures. CNS-textured surfaces with low
friction and deformation resistance will enable many applications
where these properties are desirable.
Coffee grounds for our coffee production waste generated in the
process and they were wasted all over the world. The aim of this study
was to assess the tribology characteristics of coffee bio-lubricant for the
different speeds and loads. This bio-lubricant was mixed with 16% by
weight of coffee dregs oil and 19% by weight of surfactants. The tester
materials were S45C steel. Results show that the novel coffee dregs biolubricant offers relatively better friction, wear and temperature
characteristics than those of pure mineral oil, making it a potential
candidate for future industrial bio-lubricants.
Humidity Effect on Wear Performance of Gallium
Nitrid
B.A. Krick, G. Zeng, Department of Mechanical Engineering &
Mechanics, Lehigh University, Bethlehem, PA, C. Tan, N. Tansu,
Department of Electrical and Computer Engineering, P.C. Rossin
College of Engineering and Applied Science, Bethlehem, PA
Materials Tribology
The optoelectronic property of GaN has been studied for decades and
this material has been extensively applied in solid state lighting, lasers,
solar cells, etc. While compared with electrical properties, there is still
lack of study of GaN’s mechanical properties, especially the wear
performance when subjecting to harsh environments, e.g., space, desert
and rainforest. In this work, we employed custom microtribometer to
conduct wear test on GaN under different humidity levels and
measured corresponding wear rates. Several state-of-the-art
characterization techniques were applied for understanding the wear
mechanism and how do H2O and O2 affect the wear performance of
GaN. DFT simulation was used to explain the surface energy variation
subjected to different water molecule amount. The results
demonstrated that wear performance of GaN highly depends on
humidity and wear mechanism transits from adhesive wear to fatigue
wear due to tribochemical reaction under high humidity environment.
Influence of Borate Ester on the Tribological
Properties of Low Phosphorous Oil Blends of
Phosphonium Ionic Liquids
V. Sharma, V. Sharma, P.B. Aswath, Department of Materials Science
and Engineering, University of Texas at Arlington, Arlington, TX, N.
Doerr, AC2T Research GmbH, Wiener Neustadt, Austria, A. Erdemir,
Energy Systems Division, Argonne National Laboratory, Argonne, IL
Trihexyltetradecylphosphonium bis(2-ethylhexyl)phosphate (P_DEHP)
ionic liquid was mixed with borate ester (SB) in group I base oil. Low
phosphorous (P) oil blends were prepared by keeping the phosphorous
concentration at 700 ppm and 350 ppm. Borate ester was added at 500
ppm boron treat rate. Tribological properties of these oil blends in a
cylinder-on-flat contact under pure sliding revealed noticeable
improvement in friction and wear protection, especially in the case of
P_DEHP (700 ppm P) + SB blend. Time-scale tribofilm formation was
achieved by running the experiments for 5, 15 and 60 min. Thereby,
synergistic interaction between P_DEHP and SB could be connected
with the formation of B2O3/H3BO3 and BPO4 in addition to FePO4
tribofilms. Blends containing only SB resulted in tribofilms composed of
trigonal boron as B2O3/H3BO3.
Atomistic Modeling of Cold Sprayed Titanium
Coatings
A. Vellore, G. Brunetto, A. Martini, School of Engineering, University
of California-Merced, Merced, CA
Surface Engineering
Development of Polymer Brushes for the
Lubrication of Silicon Nitride–Steel Contacts
S. Watson, University of Southampton, Southampton, United
Kingdom
Surface Engineering
Silicon nitride is an important engineering ceramic and has been
increasingly used in tribological systems. Hybrid contacts, involving
silicon nitride and steel contacts, are relying on conventional
lubrication solutions based on protecting the metal surface. In addition,
current lubricants containing phosphorus and sulphur are facing new
regulations due to pollution and their environmental impacts.
Synthesizing polymer brushes compatible with polyalphaolefins that
can strongly attach to silicon nitride may be a new lubrication solution
for hybrid bearings. A more robust method of Atom Transfer Radical
Polymerization, known as Activators ReGenerated by Electron Transfer,
allows significantly more control over the final polymer that is
constructed. Polymer brushes have longer carbon chains thus a higher
resistance to compressive and shear stresses compared to selfassembled monolayers. This paper presents initial results from a study
of polymer brushes as a lubrication solution.
188
Cold Spray is a promising surface coating technology, which offers
many advantages compared to thermal spray. Cold sprayed coatings
with different material and substrate combinations have been
developed and studied, and the results suggest that this technique may
be used to control the properties of the coated surface, such as
hardness, thermal conductivity and wear resistance. Experimental
studies show that, temperature, velocity and size of the particles used
in the spray are important to obtain these surface properties. In this
work we carried out molecular dynamics to investigate, at atomic level,
how the initial conditions of the nanoparticles affect the resultant
coating. The model is designed to mimic the cold spray process, with
titanium particles deposited onto aluminum substrate. Our results
show that the morphology of the deposited coating is related to the
impact velocity and temperature of the particles.
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Student Posters
Soft Hydrated Sliding Interface as Complex Fluids
J. Kim, A.C. Dunn, Department of Mechanical Science and
Engineering, University of Illinois, Urbana, IL
Leonardo da Vinci’s Static Friction Experiments
with Gemini Hydrogels
W. Sawyer, S.M. Hart, J.M. Uruena, A.A. Pitenis, Department of
Mechanical and Aerospace Engineering, University of Florida,
Gainesville, FL
Materials Tribology
Hydrogel surfaces have been studied as biomimics for physiological
lubricating surfaces such as the eyes and joints because of their
hydrated, flexible, and permeable nature. In the top micrometer of
hydrogel surfaces, polymer concentration gradient exists, and is
hypothesized to affect lubrication behavior due to its rheological
similarity to semi-dilute polymer solution. In this study, frictional torque
between a polyacrylamide (PAAm) surface and an aluminum annulus
was investigated using stepped-velocity tribo-rheometry over 5 decades
of sliding speed in increasing and decreasing steps. The torque-velocity
graph exhibits hysteresis, and each step shows duration-dependent
torque response similar to behavior of thixotropic fluids. We distinguish
3 lubricating regimes of hydrogel-against-hard material lubrication and
postulate that the lubrication mechanism is attributed to the
thixotropy-like flow between hydrogel and hard material surfaces.
A Cycloalkane-Based Lubricant Additive for the
Formation of Lubricious Carbon Tribofilms
Tribotesting
Minor variations in hydrogel constituents during polymerization result
in significant changes in their mechanical properties. This tunability
along with their biocompatibility and repeatability make them ideal
synthetic substitutes for biological materials in fundamental
biotribological experimentation.
Large Elliptical EHL Contacts for Reducing
Particle Entrapment
V. Strubel, N. Fillot, F. Ville, P. Vergne, LaMCoS, Université de Lyon,
INSA Lyon, Villeurbanne, France, A. Mondelin, Y. Maheo, SKF
Aerospace, Châteauneuf-sur-Isère, France, S. Simoens, LMFA,
Université de Lyon, INSA Lyon, ECLyon, Villeurbanne, France
B. Johnson, Q. Wang, Y. Chung, Northwestern University, Evanston, IL
Materials Tribology
A novel approach is presented for the deposition of lubricious and
protective diamond-like-carbon (DLC) films onto tribo-component
surfaces. This concept enables DLC formation through a tribochemical
reaction that occurs during normal machine operation, with no pretreatment of the tribo-component surfaces. The reaction utilizes an oilsoluble, surface-active molecule that contains a strained, metastable
cycloalkane. When added to a lubricant, additive molecules adsorb onto
electronegative tribo-component surfaces, and upon machine
operation, frictional heating and localized pressure from asperity
contact cause thermolysis of the metastable cycloalkanes. As carbon
and hydrogen are released from the molecule’s cycloalkanes, a
lubricious diamond-like-carbon film is formed on the contact surfaces.
The newly formed carbon layer behaves like a conventional DLC film,
providing on-demand friction reduction and wear protection.
Rolling element bearings are keystones of mechanisms, because they
are necessary for a proper operation, but remains also the Achilles heel
of the system. If any external particle penetrates the contact, the
contacting surfaces may suffer from indentation and become thus
irreversibly damaged. Solutions must be proposed for reducing the
particle entrapment probability. The authors in a past study showed
that an ellipticity of the EHL contact perpendicular to the rolling
direction leads to an important decrease of the particle entrapment
due to more important backflows occurring in the lubricant. An
experimental approach with a device combining a classical tribometer
and a µ-Particle Image Velocimetry (µ-PIV) visualization system is here
used to get measurements on the dynamics of suspended fluorescent
particles. It enables an insight on the lubricant flow upstream from
different elliptical contacts and allows to explain the particle
entrapment drop in large elliptical contacts.
Assessing Running-In Behaviour Using In-Situ
Profilometery and Friction Noise
High Sensitivity Inductive Pulse Sensor for
Metallic Wear Debris Detection Based On Parallel
LC Resonance Method
P.M. Lee, Tribology Research and Evaluations, Southwest Research
Institute, San Antonio, TX, T. Kamps, J. Walker, University of
Southampton, Southampton, Hampshire, United Kingdom, G. Plint,
Phoenix Tribology Ltd., Newbury, United Kingdom
X. Zhu, J. Zhe, L. Du, Department of Mechanical Engineering,
University of Akron, Akron, OH
Tribotesting
Detection of small metallic wear debris in the range of 20 µm to 100
µm is critical to identify abnormal wear conditions for prognosis of
pending machinery failures. Existing wear debris sensors cannot detect
wear debris in this range. Here we applied an inductance-capacitance
(LC) resonance method to an inductive debris sensor to increase its
sensitivity. By adding an external capacitor, a parallel LC resonance
circuit with a unique resonant frequency is formed. At an excitation
frequency near the resonant frequency, LC circuit’s impedance change
caused by passages of a debris particle is amplified due to sharp
impedance change near the resonant peak. Signal-to-noise ratio and
sensitivity are significantly improved. Testing showed that the new
method is capable of detecting a 20 m iron particle and 55 m copper
particle while detection limits for the non-resonance method are 50 μm
and 136 m, respectively. The sensitivity has been significantly improved
in contrast to non-resonant method.
www.stle.org
The running-in behaviour of sliding contacts is often nonlinear, yet it is
often difficult to quantify. Investigations of the running-in behaviour
are often limited due to its transient nature, however the running-in
period is often the most critical phase of tribological contacts as it is
during this period that the two surfaces are conditioned. This work
seeks to evaluate the behaviour of a line contact on a laboratory
benchtop tribometer using a combination of in situ profilometery and
friction noise high speed data. A lubricated 52100 cylinder was
reciprocated against a grade 250 grey cast-iron plate lubricated in PAO
and interrupted at regular intervals to acquire surface topographical
traces using a novel in situ stylus profilometer. The data was correlated
with the friction noise signal which measures the disorderly
instantaneous friction signal. The results indicate the non-equilibrium
nature of running in in sliding contacts.
189
STLE 2016
The Development of Sensibility Estimation Model
to Writing Feeling of Display Glass
The Effect of High Viscosity Index Bio-Derived
Hydraulic Oils on Wear, Friction and Fuel Economy
J. Lee, Y. Lee, Department of Mechanical Engineering, Sungkyunkwan
University, Suwon-Si, Gyeonggi-do, The Republic of Korea
C. Jaudon, Department of Mechanical Engineering, Auburn
University, Auburn, AL
Materials Tribology
Biotribology
Interpretation of the friction characteristics of the stylus pen is
necessary to give users interesting experience in many factors, such as
material, surface roughness. Furthermore, the friction characteristics can
be determined by a complex interaction between the test materials,
generally display glass, and stylus pen. In the current study, among the
many factors that affect the friction characteristics, this paper studied
the friction characteristics of the various pen tip materials about display
surfaces. In this paper, a friction model was established though the
sliding test between display materials and pen tips Especially,
frequency were compared with actual writing to understand the tactile
experiences. This study aims to reproduce the actual writing feeling by
control the frictional and wear behavior between the display surface
and pen tip.
Renewable, biodegradable fluids that can keep up with the increasing
demands of friction efficiency and wear protection that are required in
the lubricants industry are becoming more highly sought after. New
high viscosity index (VI) bio-derived fluids are being looked at to fulfill
these needs while also providing a fuel economy benefit when used in
the hydraulic system. To investigate these properties this study utilizes
ball-on-disk friction tests as well as a fuel economy field study using the
most recent model of a popular industry skidder. We found that of the
three bio-derived oils tested all three had equal or lower friction than
the manufacturer’s recommended petroleum based product. All but
one had equal or less wear than the petroleum product. In the fuel
economy field study all oils had similar fuel consumption. This is most
likely the result of the relatively low use of the skidder’s hydraulic
system during operation.
A Research on the Characteristic of Friction and
Wear of Ceramic Coating with Different Magnetic
Intensity
Influence of Relative Humidity on Friction and
Wear Rate of Fluoropolymers
E. Kim, C. Oh, Y. Lee, Department of Mechanical Engineering,
Sungkyunkwan University, Suwon-Si, Gyeonggi-do, The Republic of
Korea
C.P. Junk, B. Krick, S. Joynson, M.A. Sidebottom, Department of
Mechanical Engineering & Mechanics, Lehigh University,
Bethlehem, PA
Materials Tribology
Materials Tribology
Magnetic force of the ferromagnetic material promotes oxidation
during sliding with the mating member and oxide film affects
tribological characteristics of material to induce newly contact to the
junction of two materials. In this study, the friction and wear properties
of magnetized material were investigated. The magnet specimens
consist of neodymium magnet coated with TiN, TiCN, and DLC. Sliding
tests were performed with fretting tester comparing different magnetic
intensity. Higher friction and better wear resistance was observed as
increasing of magnetic density due to formation of oxidative transfer
layer. DLC coating shows better performance than others.
PTFE has been used as a solid lubricant since the early 1950’s due to its
low friction coefficients (<0.10) and wide thermal range (Tmelt~327°C).
Though PTFE is usually considered to be very inert, Tanaka and Miyata
(1976) showed that changes in the relative humidity of the environment
directly affected both the static and kinetic friction coefficients of
PTFE. However, the effect of humidity on friction coefficient and wear
of PTFE copolymers PFA and FEP has not been evaluated. PFA and FEP,
unlike PTFE, are melt processable but they do have slightly higher
friction coefficients (0.15 and 0.16, respectively) and lower melting
temperatures (304°C and 275°C, respectively). Pin-on-flat were
performed in environments ranging from extremely dry air (<10 ppm
H2O) to humid air (>50% RH). The authors will identify how the
comonomers within PFA and FEP interact with the ambient water
in the environment and how that interaction affects wear and friction
of the tribological system.
Analysis of Friction Coefficient on a Twin-Disc
Machine
G. Isaac, J. Cavoret, F. Ville, LaMCoS, INSA Lyon, Villeurbanne, France,
C. Changenet, LabECAM, ECAM Lyon, Lyon, France, G. Beck, S.
Becquerelle, SAFRAN, Colombes, France
Gears
Estimation of friction coefficient is of primary importance to predict the
behavior of a mechanical system and hence to improve its efficiency
and its reliability. Because there is still no consensus about an analytical
model that can predict friction coefficient, a lot of studies are made
experimentally with traction machines. However some discrepancies
can be noted between these different machines. Traction curves show
the evolution of friction coefficient to the Slide-to-Roll Ratio (SRR).
Literature agrees to analyze these curves into three regimes: the linear
region (Newtonian), the non-linear one (non-Newtonian) and the
thermal region (descending). Most of the friction is transform into heat,
so that it should be relevant to analyze traction machines in order to
understand the thermal effects that occur at high SRR.
190
Effects of Relative Motion on Friction and Wear:
Unidirectional Versus Reciprocating Rotary
Contacts
J.C. Smith, Department of Mechanical Engineering & Mechanics,
Materials Tribology
Many different types of contact geometries and modes exist in the
realm of tribological experimentation. Point contacts (pin-on-disc),
line contacts (block on ring) and surface contacts (thrust washer,
conformal block on ring) are all used to tease out application relevant
friction and wear information and do so with different sliding
interactions (unidirectional, reciprocating, spiral orbit). In the present
study the differences between rotary unidirectional and reciprocating
motion on the friction and wear of performance plastics in block on
ring (line contact) was assessed. A custom built and scripted
multifunctional tribometer in block-on-ring configuration was used for
both types of testing. Friction and mass based wear measurements
were made for each sample over a range of PV values with fixed load
and increasing speed. Optical micrographs of the sample surfaces
before and after testing are also included.
www.stle.org
Student Posters
Tribo-Oxidational Effects of Silicon Nitride and
Steel Alloys
Evolution of Hydrodynamic Radii of
Nanoparticles
J. Curry, G. Zeng, B.A. Krick, Department of Mechanical Engineering
& Mechanics, Lehigh University, Bethlehem, PA, A. Toro, National
University of Colombia, Bogotá, Colombia, W. Misiolek, Department
of Materials Science & Engineering, Lehigh University, Bethlehem, PA
H. Liang, Department of Mechanical Engineering, Texas A&M
University, College Station, TX, Y. Yue, Department of Materials
Science and Engineering, Texas A&M University, College Station, TX
Nanotribology
Materials Tribology
Silicon nitride (Si3N4) ball bearings are a common, hard ceramic
material used in tribological testing as a pin counterface. It has also
been known previously that when sliding at high operating
temperatures against certain steels, oxides can form at the interface
and affect the friction and wear performance of the system. This study
aims to highlight the friction induced, room temperature oxidation of
Si3N4 when sliding against various tool steel alloys and understand
what range of parameters promote or inhibit their growth. Experiments
were done in both lab air and dry nitrogen as well as at slow (1 mm/s)
and fast (10 mm/s) sliding speeds to assess the degree to which
frictional heating influences the tribo-oxidative effect. Along with
friction coefficients and profilometric-based wear measurements, SEM
& EDS was used to observe the amount of oxides present in the contact
after sliding in both lab air and dry nitrogen.
Semi-Active Control of Hybrid Air Foil Bearings
for Enhancement of Rotordynamic Performance
D. Kim, B. Zamanian Yazdi, Department of Mechanical and
Aerospace Engineering, University of Texas at Arlington, Arlington,
TX
With recent advancement in nanolubricants, understanding the
behavior of nanoparticles in a fluid is crucial for further development.
In this research, two-dimensional (2-D) nanoparticles were studied
using a dynamic light scatter (DLS). The mean value and the
distribution of hydrodynamic radii (Rh) of nanoparticles were measured
using DLS. The parameter Rh represents a three-dimensional (3-D)
spherical shaped particle. Through high resolution characterization, it
was found that the hydrodynamic radii can be correlated with the
lateral sizes of non-spherical particles. Two proportional coefficients, i.e.,
correcting factors, are proposed for the Brownian motion such that the
size and shape can be adequately predicted.
Synthesis and Characterization of Overbased
Calcium Alkylsalicylate Detergents
A. Piacentini, F. Dassenoy, Ecole Centrale de Lyon, Lyon, France,
A. Chazeau, Chevron Oronite, Gonfreville-l’Orcher, France, P. Tequi,
Chevron Oronite, Gonfreville-l’Orcher, France, B. Vacher, LTDS,
Ecole Centrale de Lyon, Lyon, France
Molecular Chemistry and Lubricant Rheology-Special
Symposium
Fluid Film Bearings
Air foil bearings (AFBs) have been recognized as one of the most
promising bearings for the high-speed oil-free turbomachinery and
they have found many successful applications in micro to mid-size
systems. AFBs allow operation at extreme temperature and speed
where conventional oil lubricated bearings seize to operate. However,
the most critical technical challenge for AFBs is the instability. The radial
air injection was shown as a beneficial phenomenon to eliminate the
friction drag during stat/stop, and it was used for thermal management
of AFBs to reduce the thermal runaway. In this study, controlled radial
air injection is used to improve the stability of AFBs. It is shown that by
taking advantage of the controlled radial air injection, the onset speed
of subsynchronous vibration is pushed to the higher speeds, and
noticeable enhancement in the rotor’s stability is observed even with a
very small bearing’s radial clearance.
One of the most important additives for lubricant oils is the overbased
detergent, which displays the additional property of neutralizing acids
generated by combustion. Overbased calcium alkylsalicylate is colloid
of CaCO3 chemically stabilized in oil by the organic calcium salt acting
as a surfactant. These colloids are synthetized in situ through the
reaction of solid Ca(OH)2 with gaseous CO2 and a throughout
characterization of the reaction product from the raw materials to the
finished product is fundamental. The present study focus on impact of
CO2 amount used on the composition, structure and morphology of
the final product using techniques such as Transmission Electron
Microscopy (TEM), Small and Wide Angle X-Ray Scattering (SAXS and
WAXS), Infrared Spectroscopy (FTIR) as well as complementary chemical
analysis.
Investigation of Temperatures Capability to
Detect Failure in Aeronautical Gearboxes
Penetration & Characterization of Multi-Purpose
Lubricants
T. Touret, F. Ville, Lamcos INSA Lyon, Villeurbanne, Rhone, France,
C. Changenet, ECAM Lyon, Lyon, France
J.L. Markham, Department of Chemical Engineering, Lehigh
University, Bethlehem, PA
Multi-purpose lubricants such as those found in a home for a variety of
uses were investigated to understand their ability to infiltrate surfaces
under seizure as well as what constituents enabled such a
phenomenon. Simple hydrocarbon based lubricants with varying
percent low vapor pressure (LVP) solvents were tested using a custom
built thrust washer tribometer. Experiments simulated the torque
necessary to overcome a stuck bolt and the static friction for each was
recorded for comparison. Different sample substrate roughness were
also tested during the course of the semester which, in addition to
the varying % LVP solvent, had an effect on the penetration and static
friction of the bolt system. Time lapsed in-situ infrared spectroscopy
experiments were also conducted to help understand what part of
the lubricant was active in aiding penetration and to what degree it
was able to assist.
www.stle.org
Condition monitoring (CM) revealed itself as a good alternative to the
challenging prediction of damage occurrence in gearboxes. Dynamic
and acoustic CM face major difficulties due to signal processing and
sensitivity to complex events in different components. An alternative
approach consists in studying temperatures. In wind turbine gearboxes
this kind of method is investigated based on data driven model. In this
study, analyses are conducted on airplane systems. By using a physical
model, the thermal network method, it may be possible to estimate
temperatures on moving elements which are difficult to measure. It is
also possible to evaluate the temperature response to certain damage
such as micropitting. A method is proposed to assess the capability to
identify failure in aeronautical gearboxes through temperature
estimation based on a physical model.
191
STLE 2016
A Fundamental Study of Bleed Mechanism
in Fretting Contact
Semi-Active Control of Hybrid Air Foil Bearings
for Enhancement of Rotordynamic Performance
A. Saatchi, Chemical Engineering, University of Akron, Akron, OH,
P. Shiller, G.L. Doll, The University of Akron, Akron, OH, K. Mistry,
The Timken Co., Canton, OH
B. Zamanian Yazdi, Mechanical and Aerospace Engineering,
University of Texas at Arlington, Arlington, TX, D. Kim, University of
Texas at Arlington, Arlington, TX
Grease
Fluid Film Bearings
Thickeners in grease are dispersed colloidally in oil, most commonly as
fibers entangled and connected together to form a three dimensional
structure that traps the oil and prevents it from flowing freely. In most
models used to predict the bleed behavior in grease, the thickener is
assumed to be a sponge that holds the oil but allows it to bleed into
the contact. In this work, the oil release mechanism of several grease
types in fretting contact has been studied. The greases tested were
lithium complex, calcium sulfonate and polyurea thickened greases.
Results were interpreted within a model where the grease thickener is
treated as particles moving in a matrix of oil instead of the traditional
view. The thickener particles, connected through van der Waals forces,
provide consistency to the grease. But at the same time, the thickener
particles are able to move independently in the oil matrix, capable of
separating from each other resulting in the occurrence of bleed.
Air foil bearings (AFBs) have been recognized as one of the most
promising bearings for the high-speed oil-free turbomachinery and
they have found many successful applications in micro to mid-size
systems. AFBs allow operation at extreme temperature and speed
where conventional oil lubricated bearings seize to operate. However,
the most critical technical challenge for AFBs is the instability. The radial
air injection was shown as a beneficial phenomenon to eliminate the
friction drag during stat/stop, and it was used for thermal management
of AFBs to reduce the thermal runaway. In this study, controlled radial
air injection is used to improve the stability of AFBs. It is shown that by
taking advantage of the controlled radial air injection, the onset speed
of subsynchronous vibration is pushed to the higher speeds, and
noticeable enhancement in the rotor’s stability is observed even with a
very small bearing’s radial clearance.
Tribological Properties of PDA/PTFE Coating
Under Lubricated Condition
Y. Zhao, M. Zou, Mechanical Engineering, University of Arkansas,
Fayetteville, AR
Surface Engineering
The objective of this work is to investigate the effect of liquid
lubrication on the tribological properties of the Polydopamine
(PDA)/polytetrafluoroethylene (PTFE) coating under severe operation
condition. The wear process of a PDA/ PTFE coating in lubricated
condition was tested under 1.5 GPa contact pressure in a rotatory
oscillating motion using a ball-on-disk configuration of the UMT-2
tribometer. A normal load of 15 N was applied with the sliding speed of
0.1 m/s. A 3D laser scanning microscope was used for high resolution
3D imaging of the wear track and the counterface.
Share your STLE 2016 Annual Meeting Presentation
with Submission of an Extended Abstract
Each year, STLE’s annual meeting is known for its exceptional technical content. With more than 500 papers to choose from, a
major concern for attendees is scheduling conflicts, as they sometimes miss presentations that they would like to hear or
cannot share materials with their colleagues who are unable to attend the meeting.
In an effort to provide attendees with the opportunity of not missing a presentation, STLE encourages speakers to submit
either a 2-3 page extended abstract or provide digital PDF copies of their annual meeting presentation slides.
For more information, visit www.stle.org or email Karl Phipps, [email protected] to submit materials.
*Please note: Attendees can download STLE 2016 Annual Meeting presentations online at www.stle.org during and
immediately following the meeting. Also, presentations can be accessed through the STLE Annual Meeting Mobile App.
Be sure to check both the STLE website and Mobile App for the latest updates on presentations that have been added by
speakers, as they become available.
192
www.stle.org
CALL FOR PRESENTATIONS
72nd STLE Annual Meeting & Exhibition
May 21-25, 2017
Hyatt Regency Atlanta
Atlanta, Georgia (USA)
AT L A N TA
STLE’s Annual Meeting & Exhibition is the industry’s most respected venue
for technical information, professional development and international
networking opportunities. Each year STLE’s conference showcases some
500 technical presentations, application-based case studies, best practice
reports and discussion panels on technical or market trends.
Education courses support professional development and prepare qualified
individuals for STLE’s three certification programs: Certified Lubrication
Specialist™, Oil Monitoring Analyst™ (I&II) and Certified Metalworking Fluids
Specialist™. Our annual trade show and popular Commercial Marketing
Forum spotlight the latest products and services of interest to lubrication
professionals. STLE’s conference is a truly international event, with some
1,600 professionals from around the world attending.
2017 presentations are being sought in the following areas:
•
•
•
•
•
•
•
•
•
•
Biotribology
Engine & Drive Train
Environmentally Friendly Fluids
Fluid Film Bearings
Gears
Grease
Materials Tribology (includes
Ceramics and Composites)
Metalworking Fluids
•
•
•
•
•
•
•
•
•
•
Nanotribology
Nonferrous Metals
Power Generation
Seals
Surface Engineering
Synthetic and Hydraulic Lubricants
Tribotesting
Wear
Abstract Submission
If you are interested in presenting at STLE’s 2017 Annual Meeting & Exhibition, submit a 100-150-word abstract at
www.stle.org. Abstracts are due Oct. 1, 2016. Notification of acceptance will be sent in December 2016. While you do
not need to prepare a full manuscript to be included on the meeting technical program, you are invited and encouraged
to submit a manuscript for review and possible publication in STLE’s peer-reviewed journal, Tribology Transactions.
For more information, please contact:
Merle Hedland • [email protected] • 630-428-2133
Follow us on
#STLE2017
Society of Tribologists and Lubrication Engineers, 840 Busse Highway, Park Ridge, IL 60068, [email protected], www.stle.org.
STLE 2016
Participants Index
Includes technical program authors, course faculty and Commercial Marketing Forum presenters.
Berglund, Kim, 4O, 7M
A
B
Abere, Julius O., 6L
B, Nikhit , 7N
Berkebile, Stephen, 4G
Acharya, Arjun, 4I
B.N., Vishwadeep, 3N
Berman, Diana, 2O
Adams, Douglas J., 6I
Baart, Pieter, 3F
Berriozabal, Edurne, 3L
Adrien, Jérôme, 4O
Babapai, K., 6O
Agiral, Anil
Advanced Lubrication 301
Babuska, Tomas, 3O
Berthier, Yves, 2I, 2N, 3I, 3O, 4K, 5L, 6O,
7K, 8D
Bactavatchalou, Ravindrakumar, 1M
Bertinotti, Aude, 4K
Aguilar, Gaston, 2D
Bai, Biao, 3J
Bertocchi, Enrico, 5C
Ajayi, Oyelayo O., 3B, 6C, 8K
Bair, Scott, 2B
Beschorner, Kurt E., 4I
Akbarzadeh, Amirabbas, 4P
Bajwa, Rizwan S., 3N
Bhattacharjee, Tapomoy, 3I, 5O
Akbarzadeh, Saleh, 4P
Bakolas, Vasilios, 3N
Bhattacharya, Priyanka, 1B
Akchurin, Aydar, 6K
Baldwin, Nicholas L., 5O
Bhushan, Bharat, 1O
Aktaruzzaman, Fnu, 6L
Bansal, Jai G., 4C
Bijani, Dariush, 7N
Alarcon, Jorge, 5M
Bantchev, Grigor, 5F
Bilas, Philippe, 2P
Alazemi, Abdullah A., 3P
Barari, Bamdad, 2I
Binder, Cristiano, 7O
Al-Azizi, Ala, 7P
Barday, Denis, 1C
Binderszewsky, Joerg, 6G
Alibert, Michael, 2L
Bares, Jason A., 6B
Biresaw, Girma, 5F
Allison, Bryan, 8D
Bartels, Thorsten, 2C
Bitsis, Chris, 6N
Almqvist, Andreas, 2M, 3B, 5C, 7C
Barthel, Anthony, 6P
Björling, Marcus, 2B, 3B
Amanov, Auezhan, 6N
Bartz, Wilfried J., 6I
Blackman, Gregory, 4O
Amuzuga, Kwassi Vilevo, 4D
Basu, Shubhamita, 2G, 7C
Blithe, Robert, 6F
Andrade, Gilberto, 2G
Basumatary, Jahnabi, 8K
Block, Erica, 2O
Angelini, Thomas E., 3I, 5O
Battaile, Corbett, 6N
Blume, Jurate, 3L
Anthony, Facchini, 4E
Batteas, James D., 7P
Antonov, Pavel, 7P
Bauer, Frank, 1M
Blunt, Thomas
Synthetic Lubrication 203, 204
Aoki, Saiko, 6B
Baumann, Matthias, 1M
Bohnert, Christof, 7D
Aoki, Shinji, 2J, 2L
Bayada, Guy, 8B
Bolander, Nathan, 3G
Arakere, Nagaraj K., 3D, 6D, 7N
Bayoumi, Hassan, 7H
Bonnaud, Patrick, 8B
Arghir, Mihai, 4M
Beaurain, Jerome, 4H
Bosman, Rob, 3F
Argibay, Nicolas, 2I, 3O
Beck, Guillaume, 3G
Bots, Steffen, 6G
Arner, Jim
Basic Lubrication 101
Becker, Edward
Automotive Lubrication 202
Bourne, Gerald, 2O
Aswath, Pranesh B., 5B
Becquerelle, Samuel, 3G
Bouyer, Jean, 1H, 4H
Atkinson, David, 1E
Beesabathuni, Shilpa, 2E
Bozet, Jean-Luc, 4D
Austin, Ted, 2J
Begin, Louis, 6C
Branson, Blake, 3L
Bell, Jason, 5B
Braun, Minel J., 1H, 3M, 4H, 5H
Bellini, Marco, 3E
Braun, Wolfgang, 3N
Belly, Christian, 5L
Brekan, Jonathan, 4L
Benecke, Herman, 5F
Brenner, Don, 6P
Bennett, Alexander I., 8K
Briançon, Laurence, 3D
Benninghoff, Keith, 5I
Brinckmann, Steffen, 8P
Bercion, Yves, 7O
Brizmer, Victor, 6N
Berier, Vincent, 1C
194
Bou-Said, Benyebka, 6H
www.stle.org
Visit Us At STLE Booth # 318
STLE 2016
Chen, Kai, Student Poster
Dehm, Gerhard, 8P
Chen, Qinghua, 5H
Deladi, Elena L., 7N
Brocker, Claudia, 7M
Chen, Rimei, Student Poster
Delferro, Massimiliano, 1B, 3L, 7E
Brown, Jeffrey, 2L
Chen, Tao, 5M
Deligkiozi, Ioanna, 2N
Brown, Ken J., 2J
Chen, Xiaoyang, 6L, 7D
DellaCorte, Christopher, 3D, 6D
Brunetiere, Noel, 3M
Chen, Xinchun, 7P
de Mello, Jose Daniel B., 7O
Bruno, Thomas, 7B
Chen, Yuting, 3I
Deneuville, Patrick, 6F
Brunskill, Henry P., 7M
Chen, Zhiyun, 2B
Deng, Dingfeng, 6C
Budinski, Kenneth, 7L
Chen, Zhou, 4N, 8N
Deng, Mingming, 2B
Budinski, Steven T., 7L
Cheng, Bingxue, 7L
Buffière, Jean-Yves, 3D
Chimata, Geetha, Student Poster
Denniston, Alan
NLGI Grease 101
Burch, Heidi, 4O
Chinnakurli Suryanarayana, Ramesh, 3N,
4N, 7N, 8N
Dery, Mary
Choi, Hyunho, 1K
Desanker, Michael, 1B, 3L, 7E, Student
Poster
B
Burke, John
Metalworking Fluids 105
Burkhardt, Eric W., 2J
Chromik, Richard R., 3O, 6O
Burris, David, 2I, 4O, 5O, 7K
Chung, Yip-Wah, 1B, 3L, 7E
Butler, Richard
Metalworking Fluids 105, 130
Ciniero, Alessandra, 5L, Student Poster
Byrne, Brian, 5M
Ciria, Jose I., 8M
Clark, Kevin, 4G
Clark, Randy, 7M
C
Clarke, Alastair, 3G
Descartes, Sylvie, 3I, 3O, 6O
Deshmukh, Sanket A., 2O
Deskin, Scott
Desrayaud, Christophe, 6O
Devlin, Mark, 7E
de Vries, Lieuwe, 7M
Cai, Shaobiao, 1N
Coe, Chuck, NLGI Grease 101
Camalli, Rafael F., 2G
Cohen, Donald
DeWitt, Matthew, 6O
Colas, Guillaume, 3O, 4O, 8D, Student
Poster
Dickman, James, 7E
Campos, Karyne R., 7O
Cann, Philippa, 1I, 4I, 6L
Canter, Neil
de Wit, Frank, 7M
Dhital, Prabin, 1N
Colbert, Rachel S., 2O
Didziulis, Stephen, 3O
Canty, Thomas, 7M
Composto, Russell J., 6Q
Diloyan, George, 1D
Cao, Changhong, 7P
Cooper, Andrew C., 5O
Dini, Daniele, 4B, 4I, 5C, 8B
Cao, Lijun, 5E, 7M
Cooper, Gregory, 2B
Dittes, Nicholas J., 6M
Caporizzo, Matthew, 6Q
Coronado, Diego A., 6G
Doerr, Nicole, 5B
Cardenas, Arturo, 2G, 2L
Cosimbescu, Lelia, 1B
Doll, Gary L., 2H, 3F, 3O, 4N, 7D, 7L, 8E
Carey, Jim, 5G
Costa, Henara L., 2C
Dong, Yalin, 2H, 4N
Carpick, Robert W., 2B, 2P, 6B, 6Q, 7P
Costello, Michael T., 6B
Synthetic Lubrication 203, 204
Donnelly, Steve, 3C
Crespo, Alexia, 5P
Dorri Moghadam, Afsaneh, 3K
Csillag, Stefan, 3P
Drees, Dirk, 2N, 5L
Curry, John, 3O, 5O, Student Poster
Du, Li, 5M, 6K
Cuthbert, John B., 2C, 6B
Duan, Yiqin, 1I, 2I, 5P
Cyriac, Febin, 3F
Dubbert, Bridget, 4E
Czibor, Jan, 6O
Dubois, Fabien, 5L
Carroll, Jay, 6N
Cavoret, Jérôme, 3D, 3G
Celis, Jean-Pierre, 2N, 5L
Cervantes, Michel J., 1I
Cha, Matthew, 4H
Chai, Zhimin, 3O
Chaise, Thibaut, 4D
Chakravortty, Dipshikha, 5F
Dörr, Nicole, 3L
Duchowski, John K., 4J, 7M
D
Duggan, John
Chandross, Michael, 3O
Dai, Wei, 1D, Student Poster
Dugger, Michael T., 2O, 6O
Chang, Shih-Hung, 8B
Dai, Yuanjing, 4E
Duhamel, Jean, 7B
Changenet, Christophe, 1C, 2G, 3G
Daly, Matthew, 7P
Dunn, Alison C., 5O
Chawla, A., 2I
Dabrowski, Alex, NLGI Grease 101
Dutt, Pravir, 4B
Chaubey, G, 1E
Dascalescu, Lucian, 6L, 7K
Dwyer-Joyce, Rob, 3C, 6M
Chazeau, Axelle, 7E
Dassenoy, Fabrice, 3P, 4P, 7E
Chen, Hsin-Yi, 6H
Debshaw, Bryan S., 7M
Chen, Huan, 7N
Decker, Chris, Basic Lubrication 102
Chan, Chia-Wen, 8B
196
www.stle.org
Participant’s Index
E
Fu, Weiping, 7N
Gunduz, Aydin, 5E
Fujikawa, Shigenori, 5N
Guo, Dan, 6Q, 8P
Eastwood, John, 5B
Guo, Fei, 3M
Egberts, Philip, 2P, 6O
G
Guo, Yanbao, 3K
Elie, Larry D., 2C
Elinski, Meagan B., 1P
Gabler, Christoph, 3L, 5B
Gupta, Surojit, 2O
Ellington, JoRuetta, 2C
Galary, Jason, 3F
Guy, Laurent, 3I
El-Shafei, Aly, 7H
Galgoci, Ernest C., 2E
Emadi, Seyedehmaryam, 7M
Emami, Nazanin, 1I
Gangopadhyay, Arup, 2C, 3C, 6B
H
England, Roger, 6C
Gao, Hongyu, Student Poster
H, Adarsha, 3N
Erck, Robert, 3B
Gao, Ming, 6P
Haas, Werner, 1M
Erdemir, Ali, 1N, 2O, 6B, 7N, 7P, 8K
Gao, Wenjun, 4D, 5E
Habchi, Wassim, 2B
Erylimaz, Osman, 1N, 7N
Gao, Yuan, 2B
Hager, Carl, 3F
Esche, Carl, 3C
Gara, Luan, 3P
Hahn, Hyeok, 2L, 5F
Espinosa-Marzal, Rosa M., 3I, 5P
Garabedian, Nikolay T., 7K
Haidar, Diana, 4O, Student Poster
Etsion, Izhak, 2N, 4N, 8N
Garapati, Sasanka, 3P
Haines, Peter G., 5I
Evans, HP, 3G
Garbark, Daniel, 5F
Han, Ganghee, 2P
Evans, Martin, 5G
García-Pineda, Patricio, 2P
Han, Yanfeng, 3H
Evans, Ryan D., 3O, 7D
Garelick, Kenneth, 5B
Hannon, James B., 3J
Ewen, James, 8B
Gatto, Vince, 3C
Ewin, Jeffrey, 4G
Gebretsadik, Daniel W., 6C
Hannon, William
Geng, Zhibo, Student Poster
Haque, Tabassumul, 2M, 5G
F
Georgiou, Emmanuel, 2N, 5L
Hardell, Jens, 5K, 6C, 6O
Ghanbarzadeh, Ali, 4K
Harish, Thettanikal V., 6F
Farahati, Rashid, 7O
Giacopini, Matteo, 5C
Harper, Phil, 7M
Farooq, Khalid, 4J
Giraudeau, Célia, 4H
Harris, Kathryn L., 2I
Farooq, Najar A., 3H
Glavatskih, Sergei, 4H
Harris, Kathryn, 6Q, 8K
Fatu, Aurelian, 1H, 2H
Goldstein, Michael, 1K
Harrison, Judith, 7P
Fatu, Ramona, 2H
Goltsberg, Roman, 2N, 4N, 8N
Harry-O’kuru, Rogers E., 5F
Feldmeth, Simon, 1M
Gomez, Yesid A., 8M
Hart, Samuel, Student Poster
Fenske, George R., 3B, 8K
Gong, Hua, 5N, 6K, 6N
Harvey, Terry J., 2H, 5G
Feppon, Florian, 1K
Gong, Taimin, 7C
Hashimoto, Chisaki, 8P
Filleter, Tobin, 3O, 7P, 8D
Gosvami, Nitya, 6B, 6Q
Hassler, John C., 7E
Fillon, Michel, 4H
Gotheridge, Stephen, 7C
Hatakeyama, Nozomu, 8B
Fillot, Nicolas, 7D
Gould, Benjamin J., 5G, Student Poster
He, Tao, 8B
Fink, Caroline, 8P
Graf-Goller, Oliver, 6D
He, Xin, 6P
Finzi, Marcilia B., 3E
Greaves, Martin, 4L
Synthetic Lubricants 203
He, Xingliang, 1B, 2B, 3L, 4B, 7E
Greco, Aaron, 5G, 8E
Heatherington, Robert, 8M
Flaherty, William, 3F
Greco, Feliciano, 2D, 7M
Hedoire, Claude E., 2E
Flamberg, Alan, 2C
Green, Itzhak, 1H, 3M
Helene, Mathieu, 4H
Fleming, Robert, Student Poster
Fontaine, Julien, 7P
Greene, Galen
Advanced Lubrication 301, 302
Hermann, John
Fossier, Charlotte, 1C
Greiner, Christian, 1O
Hernandez, Sinuhe, 6O
Franke, Joerg, 5G
Gropper, Daniel, 2H, Student Poster
Hilbert, James, 7P
Franken, Mark, 2D
Guegan, Johan, 5B
Hirata, Noriaki, 3H
Franklin, Steve, 4I
Guerra, Julia, 2P
Frauscher, Marcella, 5B
Guevremont, Jeffrey M., 5B
Hlade, Toby
Gears 101, Advanced Lubrication 302
Frazer, Robert, 3G
Gujrati, Abhijeet, 1P
Hobday, Ian, 5B
Frenken, Joost W.M., 7P, 8P
Gullapalli, Sravani, 2L
Fish, Gareth, 2D, 7L
NLGI Grease 101
www.stle.org
Gupta, Pradeep K., 3D
He, Yichen, 3I
197
STLE 2016
Khanal, Subarna R., 1P
H
J
Hochrein, David, 6D
Jackson, Andrew, 2B
Kim, Chungjwa, 1D
Hock, Ellen D., 2C
Jacobs, Peter, 5G
Kim, Daejong, 5H
Hof, Matthias, 5I
Jacobs, Tevis D., 1P
Kim, Eunseok, Student Poster
Höglund, Erik , 1C, 3F
Jain, Dharmendra, 7H
Kim, Hoon, 4E
Hokao, Michita, 8K
Jalalahmadi, Behrooz, 3D, 3G
Kim, Hyun, 3O
Holdmeyer, Dan
Basic Lubrication 101, 102
James, David, 6D
Kim, Hyun-Gil, 5K
Januszkiewicz, Kris, 6F
Holloway, Mike
Kim, Hyung-Kyu, 5K
Jaudon, Chris, Student Poster
Kim, Jiho, 5O, Student Poster
Jean-Fulcrand, Annelise, 4O
Kim, Min-Seob, 4I
Jenei, Istvan Zoltan, 3P
Kim, Seong H., 6P, 7P
Jeng, Yeau-Ren, 8B
Kiran, Erdogan, 7E
Jeon, Hong-Gyu, 4K
Kirsch, James, 3O
Ji, Xiulin, 4K
Kirsch, Mathew, 6D
Jia, Dan, 7L
Kitahara, Eiki, 5M
Jia, Xiaohong, 3M
Klaassen, Michel, 4I
Jia, Xiu, 1K
Kleber, Xavier, 3D
Jiang, Sheng, 7B
Klein, Aloisio N., 7O
Jiang, Yijie, 7P
Kline, Sara, 3M
Jin, Xiaoqing, 4D, 7N
Knopp, Andrea, 4F
Johnson, A.T. Charlie, 2P
Khare, Harman, 2B, 7K
Holmes, Andrew, 1N, 7N
Holweger, Walter, 5G
Honda, Tomomi, 3J, 5M
Hope, Ken, Basic Lubrication 101,
Synthetic Lubrication 203
Hörl, Lothar, 1M
Horng, Jeng, Student Poster
Horvat, Frank, 4H
Hou, Kaimin, 8L
Houara Komba, Eymard, 5E
Housel, Tyler
Howard, Samuel A., 3D, 6D
Johnson, Blake, Student Poster
Knotts, Nathan
Hsain, Zakaria, Student Poster
Jolly, Pascal, 3H
Koch, Edwin, 4J, 7M
Hsu, Stephen M., 5B, 7B
Jones, Morgan, Student Poster
Koch, Oliver, 7D
Hu, Renfeng, 8P
Joynson, Samuel, Student Poster
Koechlin, Samuel, 2G
Hu, Xiaoli, Student Poster
Ju, Ling, 3O
Kolev, Ivan, 5N
Huang, Zhihao, 1K
Junk, Christopher P., 4O
Kon, Tomohiko, 3J
Hunter, Kevin
Jurado, L. Andres, 5P
Konicek, Andrew R., 6B
Hunter, John, 6F
Huysman, Walt
I
Koo, Yang-Hyun, 5K
K
Kooviland, Amir, 6P
K.S, Swamy, 4N
Korres, Spyridon, 5G
Kadiric, Amir, 4B, 4D, 6G, 7D, 8D, 8L
Kosanovic Milickovic, Tatjana, 2N
Kailas, Satish V., 5F
Kosarieh, Shahriar, 6N, Student Poster
Korenyi-Both, Andras, 2O
Kalin, Mitjan, 4P
Koshigan, Komlavi, 7P
Igartua, Amaya, 3L
Kamps, Timothy, 5C, 6C, Student Poster
Kotnis, Ashish V., 2G
Ingram, Marc, 1E, 5G, 8D
Kantar, Jared, 8M
Kozawa, Sumio, 8B
Irigoyen, Mariana, 2P
Kaperick, Joseph P., 3F
Krauss, Gordon G., 7L
Isaac, Daulton D., 6D
Kapsa, Philippe, 7O
Krenn, Georg, 5L
Isaac, Gregoire, 3G, Student Poster
Karis, Tom, 4F
Krick, Brandon, 1K, 2O, 3O, 4O, 5O, 6Q
Ishikawa, Motoharu, 5P
Kasem, Haytam, 4I
Krim, Jacqueline, 6P
Ito, Akira, 5M
Kato, Takahisa, 7P
Krueger, Susan, 1B
Iwama, Yuka, 3C
Katsuki, Hiromiru, 4H
Kuchta, Tyler D., 5I, 6I
Kaufman, Michael, 2O
Kucita, Pawee, 8K
Keer, Leon M., 4D, 7N
Kumar, Bharat, 4K
Kelly, Jesse, 3B
Kunik, Sergey, 1H
Kennedy, Marian S., 2P
Kupiec, David, 5F
Khaemba, Doris N., 6N
Kuttolamadom, Mathew, 1K
Khakse, Prashant G., 7H
Kwon, Hyungoo , 6N
Khan, Zulfiqar, 3N
198
www.stle.org
Lin, Hejie, 6C
Lin, Jianliang, 6N
Malik, Khalid, 2J
Condition Monitoring 101
Lahmar, Mustapha, 6H
Lince, Jeff, 3O
Malm, Linda, 4L
Lahouij, Imene, 2B
Lingesten, Niklas, 1C
Manfredi, Olivia, 3C
Lan, Zhicheng, 2N
Lipowski, Brian M., 1D
Mangolini, Filippo, 6B, 7P
Lance, Michael, 3C
Liskiewicz, Tomasz, 5N
Manieri, Francesco, 6G
Lang, D, 7M
Litwin, Wojciech, 3H
Mansot, Jean-Louis, 2P, 7O, 8P
Lang, Timo, 7M
Liu, Jackie, 2C
Mantha, Shankar S., 7H
Langston, Justin, 2C
Liu, Jinlong, 8L
Mara, Nathan A., 2P
Lanigan, Joe, 5N
Liu, Juanfang, 5H
Marchesse, Yann, 2G
Lantz, Sean, 5B
Liu, Pinzhi, 1B, 7E
Markham, Jennifer, Student Poster
Larsson, Roland, 2B, 2M, 4O, 5C, 7C
Liu, Shuhai, 2B, 2N
Marklund, Pär D., 1C, 2B
Laruelle, Sandrine, 2G
Liu, Ttengfei, 4E
Marks, Tobin J., 1B, 3L, 7E
Latona, Renee, 5I
Liu, Weiqiang, 2I
Marshall, Samantha, 2I
Le, Marion, 3D
Liu, Ying, Student Poster
Martin, Douglas J., 6M
Leather, Jonathan, 6G
Liu, Yuhong, 1I, 2I, 2P, 3I, 5P
Martini, Ashlie, 1B, 2P, 5B
Lecante, Pierre, 7E
Liu, Zak, 2C, 6B
Maruyama, Taisuke, 8K
Leckner, Johan, 3F
Liu, Zhenxia, 5E, 5H,
Marx, Nigel, 1B
Lee, Damon, 4B
Liu, Zhong, 4B
Masen, Marc A., 4I, 4O, 6L
Lee, Jae-Ohk, 4K
Liu, Zhongguo, Student Poster
Mason, Justin, 6D
Lee, JaeHyuk, Student Poster
Liu, Zijian, 6P
Massi, Francesco, 2N
Lee, Kevin, 4G
Livingstone, Greg, 3J, 5M
Mastrandrea, Luca N., 5C
Lee, Kyungjun, 1K, 1O
Lockwood, Frances, 3L, 7E
Masuko, Masabumi, 6B
Lee, Peter, 5C, 6C, 6N, 7L, 8E
Londhe, Nikhil D., 3D
Matsui, Yuji, 6B
Lee, Young-Ho, 5K
Lorenzo Martin, Cinta, 3B, 6C, 8K
Matsumoto, Kenji, 7C
Lee, Young-Ze, 4I
Lösche, Thomas, 7D
Matsuoka, Iwao, 3H
Lehn, Andreas, 6H
Lu, Jie, 1B, 7E
Mayer, Joachim, 5G
Leininger, Dustin, 6P
Lu, Xinchun, 3O, 5P
Mazzamaro, Glenn, 3C
Le Mogne, Thierry, 3P
Lu, Xiqun, 4K, 8E
McCarthy, Donald D., 3C
Len, Michelle, Student Poster
Luftman, Henry, 3O
McClimon, John B., 7P
Leong, Jonathan Y., 1N, 7N
Lugt, Piet, 3F
Lewis, Kyle, Synthetic Lubrication 203
Lundström, Staffan, 2M
McClure, Ted G., 4E
Li, Haimei, 8L
Luo, Jianbin, 1E, 2B, 2P, 3B, 6P, 6Q, 7P, 8P
Li, Jian, 7L
Luo, Yong, 7O
Li, Jinjin, 2B, 3B
Li, Jinxia, 3F
Lutz, Glenn, Synthetic Lubricants 203,
NLGI Grease 101
Li, Jiusheng, 4L
Lyu, Yaguo, 5H
L
Li, Pengyang, 7N
McElwain, Mandi, 5B
Mcintee, Olivia, 3P
McNulty, Jason, 8L
McWatt, Douglas G., 2C
Meck, Klaus-Dieter, 2H
Li, Junyang, 3H, 5K
Li, Nan, 2P
McDaniel, Elena, 1D
Mehta, Jatin, 2J, 3J
M
Melendez, Carlos, 7L
Li, Tongyang, 4K
M.Moghaddam, Seyed Reza, 4I
Mellor, Brian, 5G
Li, Wanyou, 4K, 8E
Ma, Jaron, 6B
Menezes, Pradeep, 2B, 3K, 7N, 8N
Li, Wensheng, 8K
Ma, Kai, 7B
Menghani, Jyoti, 1O, 6O
Li, Yan, 7N
Ma, Liran, 2B, 2P, 6P
Michael, Andy, 4F
Li, Yang, 5K
Mackwood, Wayne, 2J, 3L
Michlberger, Alex, 3C
Liang, He, 3B
Maehling, Frank-Olaf, 2L
Midson, Stephen, 2O
Liang, Hong, 1D, 1K, 1O, 2B, 6K
Maheo, Yves, 7D
Liao, Yiliang, 7N
Mahner, Marcel, 6H
Miller, Brendan
Liao, Zhenhua, 2I
Majumdar, Sudip, 5I
Lim, Hojun, 6N
Maldonado, Demófilo, 2P
Lima, Eduardo G., 1E
www.stle.org
Miller, Mark E., 2G
Mills, Justin, 1C, 2C
Mills, Robin, 3C, 6M
199
STLE 2016
M
Nedelcu, Ileana, 5G
Parsaeian, Pourya, 4K
Needelman, William, 4J
Minami, Ichiro, 3L, 7M
Nelias, Daniel, 4D, 5E
Passman, Frederick J., 3E
Mistry, Kuldeep, 3F
Nemser, Stuart, 5I
Patel, Mihir, 3C
Miura, Ryuji, 8B
Neville, Anne, 1C, 3C, 4K, 5N, 6N
Patel, Sagar Devraj, 1K
Miyamoto, Akira, 8B
Ngo, Helen, 5I
Miyamoto, Naoto, 8B
Nhin Ha, Duc, 2H
Patel, Suresh
Mohrbacher, Hardy, 3K
Nie, Mengyan, 5N
Moles, Nathaniel, 1H
Niel, Dimitri, Student Poster
Molina, Gustavo J., 6L
Niemi, Sean, 2I
Mollon, Guilhem, 4K, 6K
Nishino, Takayuki, 4B
Molza, Audrey, 2P, 7O
Nixon, Ryan M., 2O
Mondelin, Alexandre, 7D
Noblit, Anthony, 6F
Moneer, Michael, 7L, 8E
Norrby, Thomas, 2E, 4L
Moore, Axel C., 5O, Student Poster
Norris, Paul, 1E
Moran, Gregory E., 2E
Nosaka, Masataka, 7P
Moreira, Maria C., 6K
Nyberg, Erik, 3L
Paulson, Neil, 7D
Peditto, Francesca, 3I
Peeters, Marc, 5L
Pegg, Ian, 6C
Pelcastre, Leonardo, 5K, 6O
Pelletier, Dave, Gears 101
Pena, Daniel, 3P
Peña-Parás, Laura, 2P
Peng, Bo, 8L
Peng, Yiyan, 8L
Morelli, Anthony, 3C
Pereira, Gavin, 2J
Morgan, Neal, 5B, 8B
Pérez-Ràfols, Francesc, 2M
Mori, Shigeyoshi, 4H
O
Morina, Ardian, 1C, 3C, 6N
O’Bryan, Christopher S., 5O
Morrison, Dave
O’Brien, Paul, 7M
Motamen Salehi, Farnaz, 3C
Mourhatch, Ramoun
Ochiai, Masayuki, 3M
Oleksiak, Thomas, 6F
Olszewski, Artur, 3H
Mueller, Mike, 3L
Olver, Andy, 6C
Mukherjee, S., 2I
Omrani, Emad, 2B, 3K, Student Poster
Mulkern, Robert, 1D
Onumata, Yasushi, 1C
Müller, Matthias, 8D
Ooms, Ingrid, 3L
Munson, Gerald L., 4J
Oswald, Fred B., 3D
Murray, Rex, 5F
Otto, Annie, 6I
Murthy, Nikhil, 4G
Oyamada, Tomonaga, 5L
Mutyala, Kalyan C., 3O, 7D
Ozaki, Yuya, 5M
Myant, Connor, 1I, 4I, 6L
Mykietyn, Justin D., 2E
Petit, Jean Wilner, 2P
Petterson, Anders, 3C
Phalle, Vikas M., 7H
Piacentini, Adalberto, 7E, Student Poster
Pickens, David, 3L, 4B
Pierson, Kristopher C., 5H
Pirouz, Solmaz, 7B
Pitenis, Angela A., 2I, 2O, 3I, 5O, 6Q
Plint, George, 5C, 6C
Poley, Jack
Pondicherry, Kartik S., 5L
Popa, Mihaela, 3I
Prabhakar, Arvind, 5H
Prakash, Braham, 5K, 6C, 6O
Pranis, George, 3C
P
Prawatya, Yopa E., 6L, 7K, Student Poster
Prime, Michael B., 6D
Padberg, Clemens, 3F
N
Pagano, Francesco, 3L
N, Sekhar , 3N
Pagkalis, Konstantinos, 8D
Nachman, Malgorzata, 4I
Pajovic, Simo, 3O, 8D
Nagai, Toshiyuki, 2L
Pan, Guoshun, 5N, 6K, 6N, 8K, 8P
Nagaraj, Aditya, 3N
Panzariello, Joseph U., 2E
Nakamura, Yumiko, 5M
Papanicolaou, Steve, 7L
Nalam, Prathima C., 3I, 6Q
Parab, Sulaksha, 5B
Nasir, Habib, 3N
Parekh, Kajal, 2E
Nataraj, Padmapriya, 4N, 7N
Park, Jeon, 1P
Nation, Brendan L., 2O, 3O, 6O
Park, Jin-Hwak, 4I
Naveira Suarez, Aldara, 4E
Park, Jooho, Student Poster
Nazir, Hammad, 3N
Park, Simon, 6O
Neagoe, Marian B., 6L, 7K, Student Poster
Parkes, Maria, 1I
200
Prioli, Maria R., 3E
P S, Suvin, 5F
Pu, Wei, 4B
Pyun, Young-Sik , 6N
Q
Qi, Jianwei, Student Poster
Qian, Xuzheng, 7L
Qin, Haifeng, 2H, 4N, Student Poster
Qing, Fan, 2M
Qingliang, Wang, 2I
Qu, Jun, 6B, 6C
www.stle.org
STLE 2016
Salomonsson, Patrik, 4L
Sharma, Vinay, Student Poster
Sanchez, Carlos J., 1D, 6K
Shaw, Austin, 6C
Radil, Kevin, 4G
Sánchez Santero, Celia, 6O
Shaw, Brian, 3G
Rahman, Mosfequr, 6L
Sankaranarayanan, Subramanian K., 2O
Sheehan, Alexis, 5P
Rahman, Naveed U., 6C
Sano, Naoko, 5N
Shelton, John, 3P
Rajeev, Vamadevan, 6F
Santos, Ilmar, 4H
Shen, Xuejin, 6L, 7D
Ramasamy, Uma Shantini, 1B, Student
Poster
Saqr, Tareq, 7H
Shendarova, Olga, 6P
Saravanan, Prabakaran, 5N
Shi, Fanghui, 6C
Saribay, Zihni B., 5E
Shi, Hongyu, 1I, 5P
Sarker, Majher I., 5I
Shi, Shuai, 6Q
Sasaki, Akira, 3J, 7C
Shiller, Paul, 3F, 8E, NLGI Grease 101,
Advanced Lubrication 302, Basic
Lubrication 102
R
Ramesh Gudi, Harsha, 8N
Ramirez, Giovanni, 6B, 7N, 7P
Rashwan, Ola, 7O
Rea, Salvatore, 3L
Synthetic Lubricants 203
Sasaki, Shinya, 8P
Reed, Bryan, Student Poster
Saulot, Aurélien, 3O, 4O, 5L, 7K, 8D
Reddyhoff, Tom, 1N, 5L, 6C, 7N
Sava, Mirela-Maria, 2I
Redmond, Ken, 5M
Sawyer, W. Gregory, 2I, 2O, 3I, 5O, 6Q
Remskar, Maja, 4P
Scanlon, Gene
Ren, Guozhe, 5H
Ren, Ning, 1B, 3L, 7E
Ren, Zhencheng, 4N
Renouf, Mathieu, 3O, 4O, 6K, 6O, 8D
Restuccia, Paolo, Student Poster
Richardson, Alexander D., 5G, Student
Poster
Riggs, Mark, 4G
Shirakura, Yuhei, 2J
Shirzadegan, Mohammad, 3B, 7C
Shively, Scott, 4F
Schall, J.D., 7P
Shoaib, Tooba, 3I
Scharf, Thomas W., 1O
Shockley, J. Michael, 6O
Scheetz, David, Gears 101
Short, Glenn
Schimmel, Thomas, 2L
Schipper, Dirk Jan, 7N
Schirru, Michele, 3C, 6M
Schmid, Chris
Rieth, Ryan, 7K
Shimizu, Yasunori, 6B
Siddaiah, Arpith, 8N
Sidebottom, Mark A., 1K, 3O, 4O, 5O
Silva, Carlos H., 6M
Simin, Nicholas, 6O
Schneider, Johannes, 1O
Simko, Steven, 2C, 6B
Schnellbacher, Emil J., 3E
Simoens, Serge, 7D
Schultheiss, Hansjörg, 3G
Simon, Vilmos V., 3G
Robinson, Joshua W., 1B, 7E
Schultz, Bradley, 2P
Singh, Balraj, 1O
Rodiouchkina, Maria, 4O
Schulze, Kyle D., 2O, 3I, 5O
Singh, Harpal, 3O, 7D
Rodriguez Ripoll, Manel, 4E, 4P
Schwedt, Alexander, 5G
Singh, Peeyush, 4B
Roell, Bernard C., 6I
Schweizer, Bernhard, 6H
Sinha, Prawal, 4B
Rohatgi, Pradeep, 2B, 3K
Secue, Nick, 3C
Sinha, Sujeet K., 1N, 7N
Rolland, Julian, 7K
Seeley, Marisa, Student Poster
Siniawski, Matthew, 7L
Rosado, Lewis, 3D, 6D
Selyanchyn, Roman, 5N
Slatter, Tom, 6L
Rostami, Amir, 5P
Serra-Holm, Valentina
NLGI Grease 101
Slocum, Sonia
Servais, Christophe, 4D
Smelova, Viktorija, 5G, Student Poster
Shaffer, Steve, 7L
Smirnov, Alex, 6P
Shafiei, Mehdi, 6F
Smirnov, Anatolij, 1C
Shah, Dimple, 1O
Smith, Jacob, Student Poster
Shah, Raj, 3B
Smith, Lawrence A., 2E
Shah, Ravi
Smith, Maddison, 8E
Rioux, Michelle, 3E
Rivera, Nicolas
Roy, Sougata, 2N
Ruellan, Arnaud, 7D
Rupanagudi, Suresh Kumar, 3N, 8N
Ryan, Kathleen, 7P
Rycerz, Pawel, 4D, 6G
S
Smith, Oliver, 6M
Shah, Syed Sajid A., 3N
Smolenski, Donald, 2C
S, Rakesh, 5F
Shakhvorostov, Dmitriy, 1C
Smyth, Patrick A., 1H
Saatchi, Alireza, 3F, Student Poster
Shams, Kayghobad, 4P
Snyder, Troy A., 4H, 5H
Sadeghi, Farshid, 3D, 5E, 7D
Sharif, Kayri, 3G
Söderfjäll, Markus, 5C
Saeed, Adil, 3N
Sharma, Aman, Student Poster
Soliman, Amr, Student Poster
Safari, Alaleh, 1I
Sharma, Satish C., 7H
Soloiu, Valentin, 6L
Sainte-Catherine, Marie-Christine, 3D
Sharma, Vibhu, Student Poster
Song, Jian, 1I, 2I
Salmeron, Miquel, 1P
202
www.stle.org
Song, Jingan, 4N
Tansu, Nelson, 2O
Song, Zhixiang, 3H
Tarasevich, Barbara, 1B
Vercillo, Heather
Sonmor, Eric, 6O
Taylor, Robert I., 1B
Vergne, Philippe, 7D
Soto, Cristian, 2J, 3J
Tequi, Pierre, 7E
Vermaak, Natasha, 1K
Souchet, Dominique, 7K
Terrell, Elon J., 7D
Vettel, Paula R., 2L, 5F
Souchik, Joan, 2C
Thiebaut, Benoit, 3P
Villavicencio, Maria D., 4O, 8D
Southby, Mark, 5B
Thomas, Fransua, 3D
Ville, Fabrice, 1C, 2G, 3D, 3G, 7D
Sovoji, Mohammad, Student Poster
Thompson, Kurt
Gears 101
Vinci, James N., 2G, 7C
Tinubu, Olusegun, 1O
Viray, Angelo, 4G
Spikes, Hugh, 1B, 1N, 2C, 3B, 5B, 6B, 7N, 8B
Tobie, Thomas, 3G
Vivier, Florence, 5K
Squier, Jeffrey, 2O
Tomala, Agnieszka M., 4E, 4P
Vladescu, Sorin C., 1N, 6C, Student Poster
Stacke, Lars-Erik, 5E, 7M
Tonazzi, Davide, 2N
Vouaillat, Gillaume, Student Poster
Stadler, Kenred, 5G
Topolovec Miklozic, Ksenija, 6G, 8L
V Udupa, Vinyas, 8N
Stahl, Karsten, 3G
Totlani, M.K, 6O
Stanford, Malcolm K., 3D
Touret, Thomas, Student Poster
Starink, Marco J., 8K
Tremmel, Stephan, 6D, 8D
Stephens, Alison, 4I
Trivedi, Hitesh K., 3D, 6D
Wadayama, Katsuya, 3C
Stephens, Lyndon S., 4M
Trunfio-Sfarghiu, Ana-Maria, 2I
Walker, John, 6C
Stevenson, Harriet J., 1I
Tsala Moto, Serge Parfait, 4K
Wall, Peter, 2M
Stieha, Joseph, 4M
Tsay, Alex, 2C
Walvekar, Aditya A., 3D
Stoilov, Vesselin, 7O
Tsipenyuk, Alexey, 4I
Wang, Bo, 2O
Stokes, Keith, 5N
Tufail, Khizer, 6C
Wang, Can, 6O
Stoldt, Volker R., 3E
Tung, Simon, 3C
Wang, Chinpei, 6C
Stoll, Mario, 1M
Turner, David
NLGI Grease 101
Wang, Chun, 1C, 5N
Strandwitz, Nicholas C., 3O
Streator, Jeffrey L., 5P
Turner, Kevin, 7P
Wang, Hongdong, 2P
Spagnoli, Jaime
NLGI Grease 101
Vinogradov, Aleksandr, 3M
Strozzi, Antonio, 5C
Strubel, Vincent, 7D, Student Poster
W
Wang, Deguo, 2M, 2N, 3K
Wang, Jen-Lung, 2C
Wang, Jiaxu, 3G, 3H, 4D, 5K, 8B
U
Subhash, Ghatu, 3D
Wang, Jinqing, 8L
Sugimura, Jochi, 5N
Ullmann, Joseph, 4G
Wang, Jun, 2D, 7M
Sugliyama, Kan, Student Poster
Urness, Kimberly N., 7B
Wang, Kuifang, 2P
Sumant, Anirudha V., 2O
Uruena, Juan M., 2I, 2O, 3I, 5O, 6Q
Wang, Lijia, 4K
Sun, Hao, 7P
Ussa, Paula, 3P
Wang, Ling, 2H, 5G, 5N
Sun, Yongfeng, 3O
Uy, Dairene, 3C
Wang, Nathan, 8L
Sun, Yu, 7P
Sundararajan, Sriram, 2N
Wang, Nenzi, 6H
Wang, Ning, 5G
V
Suo, Shuangfu, 3M
Wang, Q. Jane, 1B, 3L, 4B, 4D 7B, 7E, 7N, 8L
Suthat, Deepak, 1O
V. Menghani, Jyoti, 4K
Wang, Quandai, 7N
Suzuki, Ai, 8B
Vacher, Béatrice, 3P, 7E
Wang, Rongrong, 8P
Svahn, Fredrik, 3P
Valea, Angel, 3L
Wang, Shuncai, 8K
Vallas, Sam
Wang, Wenzhong, 8D
T
T, Pooja, 7N
T, Ramu, 4N
Tadokoro, Chiharu, 8P
Taha-Tijerina, Jaime, 2P
Tamura, Kazushi, 5P
Tamura, Yukio, 5N
Tan, Guibin, 2M
www.stle.org
van Drogen, Mark, 2D
Varenberg, Michael, 4I, 7K
Vargo, Daniel M., 1D
Varney, Phil, 3M
Veer Singh, Chandra, 7P
Vegter, Reinder H., 5G
Vellore, Azhar, Student Poster
Venner, Kees, 3F
Wang, Xianzhang, Student Poster
Wang, Yunlong, 5E
Wang, Zhanchao, 2H
Wang, Zhanjiang, 4D, 7N
Wang, Zhenquan, 3K
Wang, Zhijian, 7D, Student Poster
Wang, Zhonglai, 5K
Wangenheim, Matthias, 1M
Ward, Jr., William C., 2D
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STLE 2016
Zhang, Mengqi, 7N
W
Y
Wartzack, Sandro, 6D
Yablon, Dalia, 6B
Zhang, Weihua, 4D
Wasilczuk, Michal, 2H
Yamada, Ryo, 2J, 2L
Zhang, Xiangning, 4D
Watson, Simon, 5N, Student Poster
Yamamoto, Shuji, 5L
Zhang, XinAi, 7B
Webb, Nicole L., 3E
Yan, Fengyuan, 6L
Zhang, Xueqing, 5H
Wedin, Pär, 2E
Yang, Liu, 3K
Zhang, Yaoguang, 8D
Wei, Bo, 3H
Yang, Shengrong, 8L
Zhang, Yazhao, Student Poster
Wei, Jianjun (James), 3L
Yang, Yanlian, 5P
Zhang, Xiaohan, Student Poster
Wei, Ronghua, 6N
Yang, Ye, 1E
Zhang, Ying, 3G
Welham, Thomas, 6L
Yao, Pingping, 7C
Zhang, Yinyin, 3O
Wells, Jason, 2L, 5F
Yarlott, Marc W., 5M
Zhang, Zhaoduo, 4D
Welmers, Matthew S., 3L
Ye, Chang, 2H, 4N
Zhao, Fei, 5B, 7B
Wen, Shizhu, 1I
Ye, Jiaxin, 4O
Westbroek, Rene, 3F
Ye, Zhijiang, 2P
Zhao, Hongmei
Westerberg, Lars G., 3F
Yeo, Chang-Dong, 4N
Zhao, Hongyuan, 1C, 5N
Wheeler, Steven, 6F
Yilmaz, Sinan, 5E
Zhao, Jingyi, 2H
Whitacre, Shawn, 4C
Yinghuai, Qing, 7O, 8L
Zhao, Jingyu, 5H
Whitehouse, Suzanna, 4I
Yokomizo, Masato, 7B
Zhao, Ning, 7N
Wicker, Nathan, 3L
Yokoyama, Fumihiko, 3C
Zhao, Yang, Student Poster
Wilches Pena, Luis V., 5G
Yolton, John, 6M
Zhao, Yixing (Philip), 2E
Wileman, Craig, 5C
Yoo, Jae-Hyeong, 4K
Zhao, Yongli, 1N
Wilkerson, Daniel, 2G
Young, Darryl, 6F
Zhao, YuZhen, 7B
Williams, Mark C., 8B
Yu, Hao, Student Poster
Zhao, Ziqiang, 8D
Wilson, Solongo, 2J
Yue, Yuan, Student Poster
Zhe, Jiang, 5M, 6K
Zhang, Shengguang, 8D
Wilton-Smith, Karl, 3N
Wincierz, Christoph, 1C
Zheng, J, 3I
Z
Zheng, Liang, 3I
Zhou, Guangwu, 3H
Wolff, Karsten, 1O
Zabawski, Evan
Wong, Janet, 4O
Zakarian, Jack, 5B
Zhou, Qinghua, 4D, 7N
Wood, Robert, 5G, 6C, 8K
Zamanian Yazdi, B., Student Poster
Zhou, Yan, 5N, 6B, 6K, 6N
Worts, Nathan, 2O
Zaretsky, Erwin V., 3D
Zhou, Z.R., 3I
Woydt, Mathias, 3K
Zauscher, Stefan, 5P
Zhu, Dong, 8B
Wu, Changgui, 3M
Zdrodowski, Robert J., 2C
Zhu, Pengfei, 5H
Zegers, Federico M., 5O
Zhu, Shaocheng, 4D, 5E
Zeghloul, Thami, 6L, 7K
Zhu, Xiaoliang, 5M, 6K, Student Poster
Zehler, Gene
Zimmermann, Martin, 1M
Wodtke, Michal, 2H, 3H
Wolf, Frederik, 5L
X
Xiao, Huaping, 2B, 2N
Xiao, Ke, 3H
Xie, Guoxin, 8P
Xing, Huang, 2M
Xu, Fangcheng, 5H
Xu, James, 5F
Xu, Jian, 4L
Xu, Li, 5N, 6K, 6N, 8K
Xu, Xuefeng, 2P
Zeng, Chaoqun, 6O
Zeng, Guosong, 2O, Student Poster
Zeng, Jia, 4O
Zeng, Qihang, 3I
Zeng, Qingdao, 5P
Zhenquan, Wang, 5K
Zhou, Jie, 4H
Zoikis-Karathanasis, Alexandros, 2N
Zou, Chunli, 5N, 6K, 6N
Zou, Dequan, 4K, 8E
Zou, Qian, 3P
Zweitzig, Bruce, 2C
Zeng, Qunfeng, 1N
Zhang, Chengkai, 4K, 8E
Zhang, Chenhui, 1E, 2B, 3B, 4E, 7P
Zhang, Dekun, 8L
Zhang, Haiyang, 4O
Zhang, Jie, 1N, 3B, 7N
Zhang, Kai, 3K, 5K
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STLE 2016
Annual Meeting Committees
STLE 2015-2016 BOARD OF DIRECTORS
President – Dr. Martin N. Webster – ExxonMobil Research & Engineering, Annandale, NJ
Vice President – Dr. Ali Erdemir – Argonne National Laboratory, Argonne, IL
Secretary – Michael Anderson – Falex Corp., Sugar Grove, IL
Treasurer – Greg Croce – Chevron Products Co., Richmond, CA
Immediate Past President – Dr. Maureen Hunter – King Industries, Inc., Norwalk, CT
Executive Director – Edward P. Salek – STLE Headquarters, Park Ridge, IL
BOARD MEMBERS
PROGRAM COMMITTEE
James Arner, Pirr Tribology Solutions, Mississauga,
Ontario, Canada
Chair – Farrukh Quresh
The Lubrizol Corp., Wickliffe, OH
[email protected]
Dr. Vasilios Bakolas, Schaeffler Technologies AG & Co. KG,
Schweinfurt, Germany
Dr. Ewa Bardasz, ZUAL Associates in Lubrication LLC,
Mentor, OH
Lynn Billings, Petro-Canada Lubricants Inc. (A Suncor Energy
Business), Mississauga, Ontario, Canada
Pat Brutto, ANGUS Chemical Co., Buffalo Grove, IL
Dr. David Burris, University of Delaware, Newark, DE
Dr. Neil Canter, Chemical Solutions, Willow Grove, PA
Dr. Michael Duncan, Daubert Chemical Co. Inc., Chicago, IL
Karen E. Eisenhauer, Integrilube, Bonita Springs, FL
Dr. Ryan D. Evans, The Timken Co., Canton, OH
Dr. Arup Gangopadhyay, Ford Motor Co., Dearborn, MI
Paul Hetherington, Petro-Canada Lubricants Inc. (A Suncor
Energy Business), Peachland, British Columbia, Canada
Dr. Ken Hope, Chevron Phillips Chemical Co. LP,
The Woodlands, TX
Dr. Ashlie Martini, University of California-Merced,
Merced, CA
Daniel Nelias, LaMCos INSA De Lyon, Villeurbanne, CEDEX,
France
Dr. Thomas Scharf, University of North Texas, Denton, TX
Allison Toms, GasTOPS Inc., Huntsville, AL
Evan Zabawski, Airdrie, Alberta, Canada
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Vice Chair (Chair 2017) – Dr. Pranesh B. Aswath
University of Texas at Arlington, Materials Science and
Engineering Program, Arlington, TX (Non-Ferrous Metals,
Nanotribology, Environmentally Friendly Fluids, Lubrication
Fundamentals), [email protected]
Secretary (Chair 2018) – Dr. Michel Fillon
Institut Pprime, CNRS – Universite De Poitiers – ENSMA
(UPR 3346), Futuroscope Chasseneuil, Cedex, France
(Materials Tribology, Fluid Film Bearings, Condition Monitoring),
[email protected]
Member (Chair 2019) – Dr. Ryan D. Evans
The Timken Co., Canton, OH (Rolling Element Bearings, Seals,
Ceramics and Composites, Wind Turbine Tribology),
[email protected]
Member (Chair 2020) – Dr. Min Zou
University of Arkansas, Department of Mechanical Engineering
Fayetteville, AR (Tribotesting, Wear/Biotribology, Engine and
Drivetrain), [email protected]
Member (Chair 2021) – Dr. Jeffrey M. Guevremont
Afton Chemical Corp., Richmond, VA (Grease, Power Generation,
Synthetics and Hydraulics, Molecular Chemistry & Lubrication
Rheology), jeffrey@[email protected]
Member (Chair 2022) – Dr. Robert Jackson
Auburn University, Department of Mechanical Engineering,
Auburn, AL (Surface Engineering, Metalworking Fluids, Gears),
[email protected]
www.stle.org
Visit CRC Press Booth #718
At this Year’s
STLE Annual Meeting
Perfect for
this year’s
annual meeting
courses
Join us for
BOOK SIGNING
with co-author
Martin Webster
May 17
3-4:00 pm
Play our
TREASURE HUNT
and win
fabulous prizes
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SAVE 20% when you enter code CJQ39 at checkout.
w w w. C R C P R E S S . c o m
STLE 2016
EXHIBITOR ADVISORY COMMITTEE
EDUCATION COMMITTEE
STLE would like to thank the following individuals and their
companies for being part of the Exhibitor Advisory Committee,
which sets policies and practices for the trade show.
Chair – Greg Croce
Chevron Products Co., Richmond, CA
Acme-Hardesty
Bryan Houston, [email protected]
Bob Malenchini, [email protected]
Afton Chemical
Lauren Ereio, [email protected]
Jamie Etheridge, [email protected]
Cannon Instrument Co.
Lori Fields, [email protected]
Vice Chair – Ramoun Mourhatch
Chevron Oronite Co., LLC, Richmond, CA
Members:
Michael Pearce, W.S. Dodge Oil Co., Fountain Valley, CA
Paul Hetherington, Petro-Canada Lubricants Inc. (A Suncor
Energy Business), Peachland, British Columbia, Canada
Dr. Frederick J. Passman, BCA, Inc., Princeton, NJ
Chemtura
Bridget Peabody, [email protected]
Charles R. Coe, Grease Technology Solutions, LLC,
Manassas, VA
Evonik
Richard (Dick) Williams, [email protected]
Dr. Edward P. Becker, Friction & Wear Solutions, LLC,
Brighton, MI
Evonik Oil Additives
Yama Olumi, [email protected]
Tannas Co.
Robert Gordon, [email protected]
EDUCATION COURSE CHAIRS COMMITTEE
Chair – Ramoun Mourhatch
Chevron Oronite Co., LLC, Richmond, CA
Vice Chair – Greg Croce
Chevron Products Co., Richmond, CA
Members:
Nathan Knotts, Chevron, Richmond, CA
Brian K. Hovik, Chemetall, Renton, WA
Jack Poley, Condition Monitoring International, Miami, FL
CERAMICS AND COMPOSITES
TECHNICAL COMMITTEE
Chair – Dr. Hamidreza Mohseni
Bosch Brake Components LLC, Broadview, IL
Vice Chair – Dr. Sunghan Kim
Texas A&M University, College Station, TX
Secretary – Kyungjun Lee
PSC – Wei Dai
Vice PSC – Chad Korach
University of Mount Union, Alliance, OH
Vice PSC – Dr. Huaping Xiao
China University of Petroleum (Beijing), Beijing, China
Charles R. Coe, Grease Technology Solutions, LLC,
Manassas, VA
CONDITION MONITORING/PREDICTIVE
MAINTENANCE TECHNICAL COMMITTEE
Dr. Frederick J. Passman, BCA, Inc., Princeton, NJ
Daniel G. Holdmeyer, Chevron Lubricants, Louisville, KY
Dr. Edward P. Becker, Friction & Wear Solutions, LLC,
Brighton, MI
Chair – Greg Livingstone
Fluitec International, Bayonne, NJ
Vice Chair – Mike Holloway
ALS Tribology, Highland Village, TX
PSC – Karl Rogers
Pilot Thomas Logistics, Las Vegas, NV
Vice PSC – Matt Spurlock
AMRRI, Indianapolis, IN
208
www.stle.org
ENGINE AND DRIVETRAIN TECHNICAL
COMMITTEE
LUBRICATION FUNDAMENTALS
TECHNICAL COMMITTEE
Chair – Dr. Dairene Uy
Ford Motor Co., Dearborn, MI
Chair – Dr. Jun Qu
Oak Ridge National Laboratory, Oak Ridge, TN
PSC – Michael Plumley
U.S. Coast Guard Academy, New London, CT
Vice Chair – Dr. Paul Shiller
PSC – Dr. Jun Qu
PSC – Brendan Miller
Chevron Oronite Company, LLC, Richmond, CA
ENVIRONMENTALLY FRIENDLY FLUIDS
TECHNICAL COMMITTEE
Chair – Dr. Leslie R. Rudnick
Designed Materials Group, Scottsdale, AZ
Vice Chair – Dr. Brajendra K. Sharma
Illinois Sustainable Technology Center, University of Illinois at
Urbana-Champaign, Champaign, IL
Secretary – Dr. Selim M. Erhan
Elevance Renewable Sciences, Inc., Woodridge, IL
PSC – Helen Ngo
USDA/ARS/ERRC, Wyndmoor, PA
Vice PSC – Carl Bennett
Afton Chemical Corp., Richmond, VA
MATERIALS TRIBOLOGY TECHNICAL
COMMITTEE
Chair – Dr. Rachel S. Colbert
Sandia National Laboratories, Albuquerque, NM
Vice Chair – Dr. Judith Harrison
US Naval Academy, Annapolis, MD
PSC – Dr. Brandon Krick
Vice PSC – Tevis Jacobs
University of Pittsburgh, Pittsburgh, PA
FLUID FILM BEARINGS TECHNICAL
COMMITTEE
Vice PSC – Dr. Harman Khare
University of Pennsylvania, Philadelphia, PA
Vice Chair and Secretary – Daejong Kim
University of Texas at Arlington, Arlington, TX
METALWORKING TECHNICAL COMMITTEE
PSC – Dr. Aurelian Fatu
University of Poitiers, Angouleme, Cedex, France
Chair – David A. Lindsay
Vice PSC – Dr. Alex-Florian Cristea
Tecnitas SAS (Bureau Veritas Group), Levallois-Perret, France
Vice Chair – Karen E. Eisenhauer
Integrilube, Bonita Springs, FL
GEARS AND GEAR LUBRICATION
TECHNICAL COMMITTEE
Vice Chair – Dr. Hyung K. Yoon
Caterpillar Inc., Peoria, IL
PSC – Dr. Steven Berkebile
US ARL, Aberdeen Proving Ground, MD
GREASE TECHNICAL COMMITTEE
Chair – Dr. Kuldeep Mistry
The Timken Co., Canton, OH
Vice Chair – Dr. Gareth Fish
The Lubrizol Corp., Wickliffe, OH
PSC – Dr. William Tuszynski
The Unami Group, Quakertown, PA
www.stle.org
PSC – Alan Cross
Houghton International Inc., Valley Forge, PA
NANOTRIBOLOGY TECHNICAL COMMITTEE
Chair – Dr. Chad Korach
University of Mount Union, Alliance, OH
Vice Chair – Dr. Jian Choo
Petronas Group Technical Solutions, Kuala Lumpur, Malaysia
PSC – Dr. Hamed Ghaednia
Ford Motor Co., West Bloomfield, MI
Vice PSC – Philip Egberts
University of Calgary, Calgary, AB, Canada
Vice PSC – Dr. Harman Khare
University of Pennsylvania, Philadelphia, PA
Vice PSC – Zhijiang Ye
University of California-Merced, Merced, CA
209
STLE 2016
ROLLING ELEMENT BEARINGS TECHNICAL
COMMITTEE
Chair – Dr. Lars-Erik Stacke
SKF Sverige AB, Goteborg, Sweden
Secretary – Dr. Nathan Bolander
Sentient Science Corp., Idaho Falls, ID
SEALS TECHNICAL COMMITTEE
Chair – Dr. Noel Brunetiere
Universite De Poitiers, Futuroscope Chasseneuil, Cedex, France
Vice Chair – Dr. Tom Lai
John Crane, Inc., Morton Grove, IL
Secretary – Khalid Malik
Ontario Power Generation, Pickering, Ontario, Canada
PSC – Dr. Hongmei Zhao
The Lubrizol Corp., Wickiffe, OH
SURFACE ENGINEERING TECHNICAL
COMMITTEE
Chair – Dr. Zulfiqar Khan
Bournemouth University, Poole, Dorset, United Kingdom
Secretary – Dr. Hongyuan Zhao
University of Leeds, Leeds, United Kingdom
WEAR TECHNICAL COMMITTEE
Chair – Dr. Yan Zhou
Vice Chair – Zhe Li
General Motors Corp., Troy, MI
Secretary – Dr. Yifan Qiu
UTC Carrier Corp., East Syracuse, NY
PSC – Dr. John Bomidi
Baker Hughes, The Woodlands, TX
Vice PSC – Burt Raeymaekers
University of Utah, Salt Lake City, UT
Vice PSC – Alison Dunn
University of Illinois at Urbana-Champaign, Urbana, IL
Vice PSC – Arnab, Ghosh
Purdue University, West Lafayette, IN
WIND ENERGY TECHNICAL COMMITTEE
Chair – Benjamin J. Gould
University of Delaware, Wilmington, DE
Secretary – Caitlin Mertzlufft
NextEra Energy Resources, Palm Beach Gardens, FL
PSC – Harpal Singh
Vice PSC – Rizwan Bajwa
Bournemouth University, Bournemouth, United Kingdom
Vice PSC – Alexander Richardson
NCATS (National Centre for Advanced Tribology Southampton)
Southampton, United Kingdom
Vice PSC – Adil Saeed
Bournemouth University, Bournemouth, United Kingdom
NONFERROUS INDUSTRY COUNCIL
SYNTHETIC AND HYDRAULIC LUBRICANTS
TECHNICAL COMMITTEE
Chair – Andrew Larson
The Dow Chemical Co., Midland, MI
Vice Chair – Rob Davidson
TRIBOTESTING TECHNICAL COMMITTEE
Chair – Dr. Gordon G. Krauss
Harvey Mudd College, Claremont, CA
Vice PSC – Dr. Albert E. Segall
Penn State University, University Park, PA
Chair – Mehdi Shafiei
Novelis Global Research & Tech Center, Kennesaw, GA
Secretary – Donna Lynn Compton
Skana Aluminum, Manitowoc, WI
Treasurer – Andrea Lynn Knopp
American Electric Power, Cheshire, OH
PSC – Thomas Oleksiak
Novelis, Kennesaw, GA
POWER GENERATION INDUSTRY COUNCIL
Chair – Salvatore Rea
Anderol Company, Inc., East Hanover, NJ
Vice Chair – James Hannon
ExxonMobil Fuels, Lubricants & Specialties, Allentown, NJ
PSC – Xiaoli Hu
University of California-Merced, Merced, CA
PSC – William Needelman
Filtration Science Solutions, Inc., Huntington Bay, NY
210
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Award Recipients
Given in recognition of outstanding achievement in the field of tribology and lubrication.
All publishing awards are for papers printed in Tribology Transactions, STLE’s peer-reviewed journal.
STLE 2016
STLE International Award
Frank P. Bussick Award
Al Sonntag Award
Dr. Christopher DellaCorte, NASA
Jan Gölz, University of Stuttgart
Dr. Brandon Krick, Lehigh University
The International Award, which was established
in 1948, is STLE’s highest technical honor and
bestows lifetime honorary membership on the
recipient, who need not have been a member
of STLE. It is given in recognition of the
recipient’s outstanding contributions in
tribology, lubrication engineering or allied fields.
Dr. Frank Brauer, University of Stuttgart
Jeffrey Ewin, University of Florida
Dr. Werner Hass, University of Stuttgart
Edward McCumiskey, University of Florida
Paper: “Experimental Study on the Sealing
Mechanism of Bidirectional PTFE Lip Seals.”
Paper: “Tribofilm Formation and Run-In
Behavior in Ultra-Low-Wearing
Polytetrafluoroethylene (PTFE) and Alumina
Nanocomposites.”
P.M. Ku Meritorious Award
David Scheetz, ExxonMobil Lubricants &
Specialties
The Ku Award was established in 1978 and is
given to the STLE member who most typifies
the dedicated spirit of the late P.M. Ku, who
worked tirelessly to promote and advance the
mission of STLE. The award has been established
to recognize outstanding and selfless achievement on behalf of STLE. To qualify for the honor,
the recipient must have been a member of the
society for at least 15 consecutive years and
performed extensive active, dedicated service.
Vic Joll Award
Lynn Billings, Petro-Canada Lubricants
Inc. (A Suncor Energy Business)
The Vic Joll Award recognizes outstanding and
selfless contributions by a member of an STLE
local section. It is given to a section member
who has worked tirelessly and continuously
for the benefit of the section, devoting
numerous hours in the performance of many
tasks necessary to promote and advance the
mission of the section and of STLE. The award is
named in honor of the late Vic Joll, 1978-79 STLE
president who championed local sections.
Edmond E. Bisson Award
Dr. Andrzej Wolff, Warsaw University
of Technology
Paper: “Simulation Based Study of the
System Piston-Ring-Cylinder of a Marine
Two-Stroke Engine.”
The Bisson Award was named in honor of
Edmond E. Bisson, a former STLE editor-in-chief
who was instrumental in establishing the
society’s reputation as a technical publisher.
Established in 1991, the award is given to
STLE members or non-members for the best
written contribution published by the society
in the year preceding the Annual Meeting.
The contribution must deal with tribology,
lubrication engineering or allied disciplines.
www.stle.org
The Bussick Award is presented for the most
outstanding technical paper written on sealing
systems technology and materials. The award
is sponsored by the STLE Seals Technical
Committee and honors a former committee
chair and STLE board member.
The Sonntag Award was established in 1983 and
is given to an STLE member or members
authoring the best technical paper on solid
lubricants published by the society in the year
preceding the Annual Meeting.
Walter D. Hodson Award
Jinxia Li, Lulea University of Technology
Paper: “Lubricating Grease Shear Flow and
Boundary Layers in a Concentric Cylinder
Configuration.”
The Hodson Award was established in 1950 and
is given to the lead author of the best paper
written by an STLE member 35 years of age or
younger and published by the society in the
year preceding the Annual Meeting. The purpose
of the award is to stimulate the interest of
young engineers in the science of tribology and
lubrication and the activities of STLE.
Wilbur Deutsch Memorial Award
Dr. Hui Cen, Xuchang University
Dr. Piet Lugt, SKF Engineering &
Research Centre B.V.
Dr. Guillermo E. Morales-Espejel, SKF
Engineering & Research Centre B.V.
Paper: “On the Film Thickness of GreaseLubricated Contacts at Low Speeds.”
The Deutsch Award is named for a former STLE
president and recognizes the most outstanding
technical paper written on the practical aspects
of lubrication published by the society in the
year preceding the Annual Meeting.
Captain Alfred E. Hunt Award
Dr. Liming Chang, Pennsylvania State
University
Dr. Yeau-Ren Jeng, National Chung Cheng
University
Paper: “Parametric Analyses of the MixedLubrication Performance of Rolling/Sliding
Contacts in High-Load and High-Speed
Conditions.”
Named for ALCOA’s first president, this award is
given annually to the STLE member or members
authoring the best technical paper dealing with
the field of lubrication or an allied field.
STLE 2016 Fellows
STLE Fellows are persons of outstanding
personal achievement in the field of tribology
or lubrication engineering who have 20 years
of active practice in the science and/or
engineering professions and have been an
STLE member for 10 years. They are nominated
by the Fellows Committee and approved by
the STLE board of directors.
• Dr. Joseph Braza, Boulden Co.
• Dr. Robert Carpick, University of
Pennsylvania
• Dr. Gary Doll, University of Akron
• Dr. Rajesh Shah, Koehler Instrument Co.
Inc.
• Dr. Brajendra Sharma, University of
Illinois at Urbana-Champaign
• Dr. Qian (Beth) Zou, Oakland University
Outstanding
Local Section Awards
Large Section
STLE Philadelphia Section
Small Section
STLE Canton Section
Student Scholarships
• The E. Richard Booser Scholarship
Zoe Tucker, Auburn University
• The E. Elmer Klaus Fellowship
Lijun Cao, Purdue University
John Curry, Lehigh University
Guosong Zeng, Lehigh University
211
Advertisers Index
Events like STLE’s 2016 Annual Meeting & Exhibition would not be possible without the generous support of
advertisers and sponsors. The society would like to extend its thanks to the companies listed below whose
advertising support contributed substantially to the production of this Program Guide. Almost all of these
organizations are here in Las Vegas with a booth in the trade show.
169 Acme-Hardesty
IFC Afton Chemical Corp.
075 ALS Tribology
063 ANGUS Chemical Co.
Tuesday Tab – Back
Anton Paar
007 Beckman Coulter
Wednesday Tab – Front
Lonza
Wednesday Tab – Back
Metall-Chemie/Gehring Montgomery
101 Monson – An Azelis Americas Co.
OBC Münzing
143 Nanotech Industrial Solutions, Inc.
205 Novitas Chem Solutions
119 Bruker
003 Calumet Specialty Products Partners, LP
141 Cannon Instrument Co.
111 Chemtura Corp.
081 Chevron Phillips Chemical Co.
195 Pilot Chemical Co.
071 PolyOne
153 RheinChemie Additives/LANXESS Corp.
095 Savant, Inc.
139 Sea-Land Chemical Co.
067 CINRG
035 Shell
207 CRC Press
179 Daubert Chemical
IBC Dover Chemical Corp.
015 Emery Oleochemicals
Sunday/Monday Tab – Back
Evonik Oil Additives
Sunday/Monday Tab – Front
ExxonMobil Chemical Co.
161 Soltex
127 Solvay
Thursday Tab – Back
STLE 2016 Tribology Frontiers Conference
133 Tannas Co.
097 Teknor Apex
147 FedChem, LLC
Tuesday Tab – Front
The Dow Chemical Co.
047 Fluid Transfer Technologies
091 The Elco Corp.
157 Huntsman Petrochemical Corp.
Thursday Tab – Front
UL Information & Insights
065 Inolex
031 JAM Distributing
185 Univar
173 King Industries Inc.
201 Vanderbilt Chemicals, LLC
123 LANXESS Corp.
073 VHG Labs/LGC Standards
212
www.stle.org
Notes
www.stle.org
213
Notes
214
www.stle.org
Notes
www.stle.org
215
Notes
216
www.stle.org
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Conclusion

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