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Effect of Counterpart Ring Surface Roughness on Wear Process of Bismuth Bronze |
YANG Dongya1, LI Weitao1, WANG Honggang2( ), GAO Gui1,2, CHENG Shengsheng2, REN Junfang2, TIAN Song1 |
1.School of Mechanical and Electrical Eng. , Lanzhou Univ. of Technol. , Lanzhou 730050, China 2.State Key Lab. of Solid Lubrication Lanzhou Inst. of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
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Cite this article:
YANG Dongya, LI Weitao, WANG Honggang, GAO Gui, CHENG Shengsheng, REN Junfang, TIAN Song. Effect of Counterpart Ring Surface Roughness on Wear Process of Bismuth Bronze. Chinese Journal of Materials Research, 2021, 35(10): 732-740.
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Abstract The effect of surface roughness of steel ring (GCr15) as a counterpart of the friction pair on the wear of bismuth bronze (CuSn10Bi3) under oil lubrication condition was investigated by MRH-3 ring-block friction and wear tester. While the friction surfaces at different wear stages were characterized by means of scanning electron microscopy (SEM) and three-dimensional profiler. The oil particle size was analyzed and the friction process of the micro-convex body was numerically simulated, and the wear mechanism of CuSn10Bi3 was revealed from the microscopic point of view by combining experiment and simulation. The results show that: The roughness of the steel ring surface has a significant effect on the wear process of bismuth bronze. When the roughness of the steel ring Ra increases from 0.01 to 0.8, the tribological performance indexes increase by about 2 times, the size of the wear debris generated in the whole process increases by 1.5 times, the time experienced in the running-in wear stage and the severe wear stage increases by 0.7 times, and the time experienced in the stable wear stage decreases by 0.4 times.
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Received: 22 December 2020
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Fund: National Natural Science Foundation of China(51675509) |
About author: WANG Honggang, Tel: (0931)4968022, E-mail: hgwang @ licp.cas.cn
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