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Keywords: indentation
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Journal Articles
Article Type: Research Papers
J. Tribol. April 2022, 144(4): 041503.
Paper No: TRIB-21-1344
Published Online: November 12, 2021
... elastoplastic micro-asperity strain hardening strain hardening exponent contact area indentation volume conservation model 25 07 2021 17 10 2021 18 10 2021 12 11 2021 Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . Email...
Journal Articles
Article Type: Research Papers
J. Tribol. November 2021, 143(11): 111202.
Paper No: TRIB-20-1135
Published Online: February 23, 2021
...Iqbal Shareef; Joshua A. Brandes; Erwin V. Zaretsky Static Load Capacity as defined by Palmgren is the load (stress) applied to a bearing that results in an indentation greater than 0.0001 times the diameter of the rolling element. The effect of hardness on the Static Load Capacity of AISI 52100...
Topics: Bearings, Stress
Journal Articles
Article Type: Research Papers
J. Tribol. May 2021, 143(5): 051102.
Paper No: TRIB-20-1413
Published Online: February 12, 2021
... resistance, biocompatibility, and nontoxicity [ 4 ]. selective laser melting intrinsic heat treatment titanium microstructural gradient nano-tribology hardness indentation sliding The phase of the SLM-processed sample was characterized by XRD with scanning speed about of 1 deg/min...
Journal Articles
Article Type: Research Papers
J. Tribol. August 2021, 143(8): 081703.
Paper No: TRIB-20-1406
Published Online: December 14, 2020
..., indentation craters, and ploughing craters were the main surface damage features. The shear craters predominated at the impact angle of 45 deg whereas the indentation craters predominated at 90 deg. During the steady-state of erosion, the rail damage was mainly composed of craters, platelets, and cracks. Both...
Journal Articles
Article Type: Research Papers
J. Tribol. August 2021, 143(8): 081502.
Paper No: TRIB-20-1343
Published Online: November 24, 2020
... Poisson’s ratio. The model results are compared with numerical and mathematical models for isotropic auxetic polymers. The indentation of auxetic materials is analyzed for the effects of friction, plasticity and allowing separation after contact with a spherical indenter using a commercial software, abaqus...
Journal Articles
Article Type: Research Papers
J. Tribol. November 2020, 142(11): 112401.
Paper No: TRIB-20-1092
Published Online: June 11, 2020
... by the Tribology Division of ASME for publication in the J ournal of T ribology . 02 03 2020 30 04 2020 01 05 2020 11 06 2020 microwave power microstructure clad erosion indentation surface properties and characterization surface treatments surfaces wear mechanisms...
Journal Articles
Article Type: Research Papers
J. Tribol. February 2020, 142(2): 021703.
Paper No: TRIB-18-1430
Published Online: October 17, 2019
... ) f ( ν 2 ) E 2 h 2 + θ S ( h − h 0 ) where P is the normal load, h is the indentation depth, S is the unloading stiffness of indentation and can be obtained from the experiment, h 0 refers to the plastic depth on the elastic–perfect plastic material, θ...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2020, 142(1): 011701.
Paper No: TRIB-19-1011
Published Online: October 17, 2019
... during repeated scratching. The presence of intergranular fracture slip and twinning on the deformed surface is indicative of the material’s response to induced stress. The grains under the indenter experience complex compressive forces under the movement of indenter during scratch testing (Fig. 5...
Journal Articles
Article Type: Research-Article
J. Tribol. May 2018, 140(3): 031605.
Paper No: TRIB-17-1080
Published Online: December 6, 2017
... in Figs. 7( d ) – 7( f ) ; it is observed that the wear is dominant at normal impact angles due to deformation. Thus, due to normal impact of erodents the indentation craters are formed on the eroded surface. The blocky- and subangular-shape quartz particles deform the surface material in the form...
Journal Articles
Article Type: Research-Article
J. Tribol. January 2018, 140(1): 011406.
Paper No: TRIB-17-1081
Published Online: August 22, 2017
... plate elastoplastic impacts and elucidates the underlying impact phenomena. Experiments were performed on 0.635 cm and 0.476 cm diameter (d) spheres of various materials impacting aluminum 6061 plates of different thicknesses (t) with the low impact velocities up to 3.1 m/s. Besides COR, indentation...
Journal Articles
Article Type: Research-Article
J. Tribol. November 2017, 139(6): 061402.
Paper No: TRIB-16-1304
Published Online: June 7, 2017
... 3, 2016; final manuscript received February 13, 2017; published online June 7, 2017. Assoc. Editor: Liming Chang. 03 10 2016 13 02 2017 Contact Friction Indentation Interface Micro-tribology Sliding Stick-slip Surface roughness Asperities Interfacial damping...
Journal Articles
Article Type: Research-Article
J. Tribol. July 2017, 139(4): 041104.
Paper No: TRIB-16-1141
Published Online: April 4, 2017
... Indentation One important observation from Fig. 6 is the nonlinear dependence of the COR on the ratio of plate thickness to sphere diameter. As the ratio decreases below certain critical value, the COR begins to exhibit a noticeable nonlinear behavior. Let us define this critical ratio ( t / d ) cr...
Journal Articles
Article Type: Research-Article
J. Tribol. October 2016, 138(4): 041405.
Paper No: TRIB-15-1288
Published Online: July 26, 2016
... Division of ASME for publication in the J OURNAL OF T RIBOLOGY . Manuscript received August 5, 2015; final manuscript received February 11, 2016; published online July 26, 2016. Assoc. Editor: Zhong Min Jin. 05 08 2015 11 02 2016 Bio-tribology Contact mechanics Indentation...
Journal Articles
Article Type: Research-Article
J. Tribol. October 2016, 138(4): 041404.
Paper No: TRIB-15-1234
Published Online: July 20, 2016
... a Hertz-like quasi-static indentation (loading time > 1.4 hrs) by a polyacrylamide probe into a stiff flat surface in a submerged environment. The real contact area and width were calculated from in situ images of the interface processed to reduce image noise and thresholded to define the perimeter...
Journal Articles
Article Type: Research-Article
J. Tribol. October 2016, 138(4): 041403.
Paper No: TRIB-15-1221
Published Online: July 14, 2016
...A. Zare; M. J. Klopfstein; D. A. Lucca; L. Price; L. Shao; G. Q. Xie Nanoindentation experiments with a Berkovich indenter and a spherical indenter were performed to study the effects of annealing at temperatures below the glass transition temperature and room temperature ion irradiation...
Journal Articles
Article Type: Research-Article
J. Tribol. April 2016, 138(2): 021503.
Paper No: TRIB-15-1191
Published Online: October 27, 2015
...George K. Nikas Metallic microparticles of 5–100 μ m in size often contaminate elastohydrodynamic (EHD) contacts and indent surfaces. The geometrical characteristics of dents by such solid particles are linked to the way surface damage may evolve and how it may affect the life of the damaged...
Journal Articles
Article Type: Technical Briefs
J. Tribol. October 2015, 137(4): 044502.
Paper No: TRIB-14-1293
Published Online: October 1, 2015
... 07 07 2015 A differential hardness is needed for a spherical indenter to avoid large deformations of it during an indentation process. Tabor proposes a criterion for this, where the ball hardness should be at least 2.5 times harder than the specimen. Later, five models expand the Tabor...
Journal Articles
Article Type: Research-Article
J. Tribol. October 2015, 137(4): 041102.
Paper No: TRIB-14-1266
Published Online: October 1, 2015
... and S–N diagrams of both through- and case-hardened steels subjected to RCF. Hardness Indentation Rolling element bearings Rolling fatigue Surface properties Characterization Ball-raceway and roller-raceway contact regions in a bearing assembly are subjected to intense localized...
Journal Articles
Article Type: Research-Article
J. Tribol. January 2016, 138(1): 011101.
Paper No: TRIB-15-1084
Published Online: July 10, 2015
...Xiaolan Ai; Carl Hager The presence of debris particles in rolling element bearings can pose a major risk for premature fatigue damage on modern bearing components made from clean steels. A clear understanding of surface indentation characteristics and the associated particle that inflicted...
Journal Articles
Article Type: Research-Article
J. Tribol. July 2015, 137(3): 031504.
Paper No: TRIB-14-1315
Published Online: July 1, 2015
... Risks of Oil Starvation and Surface Indentation ,” ASME J. Tribol. , 124 ( 3 ), pp. 461 – 467 . 10.1115/1.1467083 [37] Green , D. A. , Lewis , R. , and Dwyer-Joyce , R. S. , 2006 , “ The Wear Effects and Mechanisms of Soot Contaminated Automotive Lubricants ,” J. Eng. Tribol...