GCr15及G20CrNi2Mo轴承钢材料微观组织和摩擦磨损性能研究

doi:10.11896/cldb.20070124

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Abstract In order to investigate the friction performance of bearing steel with different microstructure under different load and speed, the microstructure, phase and properties of GCr15 high-carbon bearing steel and G20CrNi2Mo carburizing bearing steel were analyzed by the scanning electron microscope (SEM), X-ray diffraction (XRD) and hardness tester, etc. The dry friction experiment of bearing steels under different conditions was conducted by UMT friction and wear tester. Then, the wear performance was analyzed. The results show that the friction coefficient and wear rate both GCr15 high-carbon bearing steel and G20CrNi2Mo carburized bearing steel in this work are decreased with the increasing of load and increased with the increase of friction velocity under this experimental conditions. When the friction velocity is low, the friction and wear performance of GCr15 high-carbon bearing steel is better than G20CrNi2Mo carburized bearing steel. When the friction velocity is 0.17 m·s^-1, G20CrNi2Mo carburized bearing steel shows better wear performance than that of GCr15 high-carbon bearing steel. The wear mechanism results indicate that the adhesive wear and abrasive wear is the mainly wear mechanism for both bearing steels, and the degree of adhesive wear on the surface of G20CrNi2Mo carburized steel is more serious.

Key words： bearing steel microstructure dry friction wear performance

Published: 07 September 2021

CLC number:

TB333

Fund:National Key R&D Program of China(2018YFB2000302), the National Natural Science Foundation of China (51801054), the Tribology Science Fund of the State Key Laboratory of Tribology (SKLTKF19B14).

About author:: Biao Ma,studying for a master's degree in materials Science and Engineering in Henan University of Science and Technology. He received bachelor's degree in Metal Materials Engineering from Nanjing Institute of Technology in 2018. At present, he mainly studying in the research of bearing material structure, friction and wear performance.
Lihua Fu,a lecturer in Henan University of Science and Technology, received her Ph.D. degree in University of Science and Technology Beijing in 2017. She is mainly engaged in the development and research of wear resistant materials, key research the microstructure and friction and wear properties of bearing steel. She has published more than 20 academic papers in domestic and foreign journals.

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	MA Biao
	FU Lihua
	SHANGGUAN Bao
	DU Sanming
	YUE Yun
	ZHANG Yongzhen

Cite this article:

MA Biao,FU Lihua,SHANGGUAN Bao, et al. Research on Microstructure and Friction Wear Performance of GCr15 and G20CrNi2Mo Bearing Steel[J]. Materials Reports, 2021, 35(16): 16120-16125.

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http://www.mater-rep.com/EN/10.11896/cldb.20070124 OR http://www.mater-rep.com/EN/Y2021/V35/I16/16120

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