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Keywords: hardness
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Journal Articles
Article Type: Research Papers
J. Tribol. July 2022, 144(7): 071701.
Paper No: TRIB-21-1419
Published Online: January 11, 2022
...) and energy-dispersive spectrometer (EDS). The results show that the introduction of nitrogen improves the hardness and wear resistance of Zr-based metallic glass. Compared with the non-N-doped Zr-based metallic glass, the N-doped Zr-based metallic glasses have higher hardness and lower wear-rate...
Journal Articles
Accepted Manuscript
Article Type: Research Papers
J. Tribol.
Paper No: TRIB-21-1481
Published Online: January 7, 2022
... curves are close to coincide again. The dimensionless elastic-plastic contact hardness is introduced. The relation between real contact area and the contact pressure of the indentation model can be acquired quickly. The results show that the geometric shape of deformable contact parts has an important...
Journal Articles
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051502.
Paper No: TRIB-21-1414
Published Online: December 2, 2021
... density of dislocations and short bar-shaped cementite. The bainite exhibited higher hardness and elasticity but lower plasticity than the matrix microstructure. The incongruity of plastic deformation between upper bainite and matrix microstructures will lead to stress concentration at boundary...
Journal Articles
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051704.
Paper No: TRIB-21-1360
Published Online: December 2, 2021
... Nanocomposite Films ,” Diamond Relat. Mater. , 74 ( 1 ), pp. 45 – 52 . 10.1016/j.diamond.2017.02.003 [23] Luo , F. , Gao , K. , Pang , X. , Yang , H. , Qiao , L. , and Wang , Y. , 2008 , “ Characterization of the Mechanical Properties and Failure Modes of Hard Coatings...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2022, 144(1): 011706.
Paper No: TRIB-21-1337
Published Online: October 20, 2021
... installation position under continuous field operation conditions. The hardness, phase structure, elemental composition, and micromorphology of the spindle hook teeth were characterized using microhardness, X-ray diffractometer (XRD), energy spectrum analyzer (EDS), and scanning electron microscope (SEM) after...
Journal Articles
Article Type: Research Papers
J. Tribol. June 2022, 144(6): 061501.
Paper No: TRIB-21-1252
Published Online: August 30, 2021
... microstructure evolution sintered metallic brake pad metal/graphite composite brakes hardness tribological systems Braking, especially in the railway field where the dissipated energy is of the order of a few megawatts, is a deeply multi-physical and multiscale problem. The multi-physics dimension...
Journal Articles
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051201.
Paper No: TRIB-20-1541
Published Online: August 16, 2021
... not lead to the formation of new compounds. However, it significantly improves the shore hardness and tribological properties of EPDM. In addition, significant stick-slip phenomenon occurs during the wear process of EPDM with different carbon black content. During the wear process of EPDM, there are both...
Journal Articles
Article Type: Research Papers
J. Tribol. November 2021, 143(11): 111702.
Paper No: TRIB-21-1123
Published Online: June 18, 2021
.... AISI 4140 steel was coated with NiP through an autocatalytic bath with the addition of Al 2 O 3 particles maintained in suspension by mechanical stirring. Following, the coated samples were annealed at 600 °C to increase the hardness and to create an interdiffusion layer, which improves coating...
Journal Articles
Article Type: Research Papers
J. Tribol. March 2022, 144(3): 031402.
Paper No: TRIB-21-1098
Published Online: June 16, 2021
... of Ti exceeds 0.5, Laves phases appeared in the coatings. With increasing of Ti, the micro-hardness and wear resistance of the coatings increased, but friction coefficient and crack resistance of the coatings reduced. Suitable Ti content in the FeCoNiCrMnTi x , laser composite coating, had higher...
Journal Articles
Article Type: Research Papers
J. Tribol. March 2022, 144(3): 031701.
Paper No: TRIB-21-1065
Published Online: June 7, 2021
...-on-disc, reciprocal sliding, and micro-abrasion wear tests are quite common configurations for this purpose. Thus, a gap was identified in terms of characterization of hard physical vapor deposition (PVD) coatings subject to higher levels of contact pressure. This study aims to study and compare the wear...
Journal Articles
Article Type: Research Papers
J. Tribol. March 2022, 144(3): 031702.
Paper No: TRIB-21-1144
Published Online: June 7, 2021
... 03 2021 18 05 2021 18 05 2021 07 06 2021 non-ferrous metals (Zn–40Al–2Cu–2Si alloy) bearing materials wear behavior sliding friction bearings hardness wear mechanisms The first Zn-based commercial alloys produced in the late 1920s are called ZAMAK 2, 3, 5, and 7...
Journal Articles
Article Type: Technical Briefs
J. Tribol. February 2022, 144(2): 024501.
Paper No: TRIB-20-1431
Published Online: May 4, 2021
... hardness surface properties The wear testing was conducted using an electric motor-powered circular soil bin system, located at the Soil Machine Dynamics Laboratory (SMDL) at ISU Agronomy and Agricultural Engineering Research Farm near Boone, Iowa. The circular soil bin was manufactured to perform...
Topics: Soil, Wear, Gravel
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. October 2021, 143(10): 102101.
Paper No: TRIB-20-1217
Published Online: February 12, 2021
.... , 2007 , “ Hardness and Wear Resistance of Carbon Nanotube Reinforced Cu Matrix Nanocomposites ,” Mater. Sci. Eng., A , 449 , pp. 46 – 50 . 10.1016/j.msea.2006.02.310 [9] Zhao , H. , Barber , G. C. , and Liu , J. , 2001 , “ Friction and Wear in High Speed Sliding With and Without...
Journal Articles
Article Type: Research Papers
J. Tribol. May 2021, 143(5): 051102.
Paper No: TRIB-20-1413
Published Online: February 12, 2021
... heat treatment. Microstructure and nano-testing allow identifying specific sliding behaviors in three attitude regions: (I) surface (0–50 µm), (II) subsurface (50–200 µm), and (III) inner-part (below 200 µm). The average hardness drops slightly when moving from Regions I and II (3.35 GPa) to Region III...
Journal Articles
Article Type: Research Papers
J. Tribol. August 2021, 143(8): 081702.
Paper No: TRIB-20-1274
Published Online: November 25, 2020
... the subsurface hardness and affected depth for the three materials as a consequence of the associated deformation, and in general, the subsurface layer of AISI 1065 and AISI 1080 steels presented highest and comparable hardness values, explained by their higher yield strength in relation to AISI 1020 steel...
Journal Articles
Article Type: Research Papers
J. Tribol. August 2021, 143(8): 081701.
Paper No: TRIB-20-1387
Published Online: November 18, 2020
.... 16( c ) . In addition, the rise in temperature is high at high loads. It had been observed by some researchers [ 73 , 74 ] that Al alloys and its composites with hard particulates, exhibit negative work hardening rates at the temperature which is usually developed due to tribological mechanisms...
Journal Articles
Article Type: Research Papers
J. Tribol. March 2021, 143(3): 031402.
Paper No: TRIB-20-1199
Published Online: September 21, 2020
... Division of ASME for publication in the J ournal of T ribology . 08 05 2020 11 08 2020 12 08 2020 21 09 2020 tribology iron contact alumina coating SPH simulation coatings friction hardness sliding In order to protect the surface of a metallic substrate under...
Journal Articles
Article Type: Research Papers
J. Tribol. March 2021, 143(3): 031202.
Paper No: TRIB-20-1183
Published Online: September 11, 2020
... is lesser than the untreated and H1 hardfaced specimens. Shallow abrasion marks on the worn-out surface of specimens indicate higher wear resistance from untreated and H1 overlying specimens, which might be due to dendritic structure with higher hardness. EDS point analysis (Tables 6 and 7 ) identifies...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2020, 142(10): 101401.
Paper No: TRIB-20-1071
Published Online: August 11, 2020
... 08 2020 Al 2 O 3 -TiO 2 blends erosion resistant coating erosion wear coatings erosion hardness surface roughness and asperities Water is mainly used as a carrier fluid to move the solid material from one place to another in the hydraulic slurry transportation system...