Abstract：By adjusting the quenching and tempering heat treatment processes of 95Cr18 steel, three pairs of rolling friction pairs with hardness differences of 2HRC, 4HRC, and 6HRC were obtained, and then under the conditions of 500N load and 25 ° C water lubrication using MM200 multifunctional friction tester The rolling friction and wear tests have obtained the friction coefficient curves of different friction pairs and the quality after wear. The test methods such as OM, XRD, SEM, EDS were used to analyze the wear surface, material micro-morphology and precipitated phases, and explore different hardness. Wear mechanism of matched friction pair. The results show that the friction coefficient of the friction pair with a hardness difference of 6HRC has the smallest fluctuation, the surface wear is slight, and the overall weight reduction of the friction pair is the smallest. The wear resistance of the driven friction ring decreases with decreasing hardness.
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2020, Vol. 27 