Tribological Behavior of Coating Cr Layer on 40Cr after Surface Electron Beam Pretreatment

[摘要] In this study,the friction and wear behavior of PVD coatings which were treated by 5 different processes,based on gear material-40Cr. Analyzing the effects of treating the gear material with electron beam in combination with magnetron sputtering on it,for dry friction and wear properties.The result showed that the electron beam pretreated substrate was useful to improve the tribological performance of coating material.Furthermore, the surface roughness of coating, the bonding force between substrate and coating as well as the load are the main factors affecting the tribological performance of this coating. Most importantly, the contribution of plowing effect on friction coefficient should be considered when the surface roughness is high.

[发布机构] Chongqing University of Technology, Banan Chongqing; 400054, China^1

[效力级别] 机械制造 [学科分类] 材料科学（综合）

[关键词] Bonding forces;Dry friction and wears;Friction and wear behaviors;Friction coefficients;Plowing effects;Surface electron;Tribological behaviors;Tribological performance