Sliding Friction and Wear Behavior of GCr15 Bearing Steel at Different Temperatures

Abstract:

The effects of temperature on the friction and wear properties of GCr15 were studied by using a RETC multifunctional friction and wear testing machine. The microstructure characterization of the worn surface of the experimental steel was studied by means of metallographic microscope (OM), white light interferometer, secondary electron image (SEI) and back scattered electron image (BEI).The results show that the wear resistance of GCr15 bearing steel at room temperature is better than that at 100°C, 150°C and 200°C. At room temperature, the main wear forms of GCr15 are adhesion wear and fatigue wear. However, at 100°C, 150°C, 200°C, the friction coefficient and oxidation degree in the wear zone first increase and then decrease with the increase of temperature, and the wear form is mainly oxidized wear, accompanied by abrasive wear.

• Periodical: Solid State Phenomena (Volume 324)
• Pages: 35-42
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.324.35
• Online since: September 2021
• Authors: Dong Yue Wang, Rong Chang Xu, Dian Xiu Xia*, Shou Ren Wang, Ying Chao Pei, Zhi Heng Liu, Zheng Peng Han
• Keywords: Bearing Steel, GCr15, Sliding Wear

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