Abstract
The tribological behaviour of precipitation-hardening stainless steel 0Cr17Ni4Cu4Nb against 30CrMnSiA steel under sliding condition was tested using the M2000A model wear tester. The surface roughness, hardness and load under the dry or grease lubricated conditions were studied. It indicated that the volume wear, mass wear, wear rate and friction coefficient were all large, and the main wear mechanism was the adhesive wear under the dry friction. The grease lubrication can effectively reduce the volume wear and friction coefficient, and enhance the wear resistance properties of 0Cr17Ni4Cu4Nb. The tribological properties were the best when the surface roughness was 0.8μm under the grease lubricated friction. Meanwhile the volume wear was also small when its hardness was low. The hardness was higher and the friction coefficient was more stable after the heat treatment on 0Cr17Ni4Cu4Nb. The volume wear and friction coefficient were both increased with the increasing of the loads under the grease lubricated friction.
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