Influence of solid contaminants in oil on wear characteristics of nano-Al2O3/Ni composite coating
来源期刊：中国有色金属学报(英文版)2004年第4期
论文作者：杜令忠 徐滨士 董世运 杨华 吴毅雄
文章页码：718 - 722
Key words：composite coating; nano-particles; wear; solid contaminant
Abstract: Solid contaminants in lubrication system will cause severe wear of sliding components. In order to improve the wear resistance of the material in oil containing solid contaminants, the brush plated nano- Al2O3/Ni composite coating was prepared and the influence of the sand content and sand size on the tribological property of the coating in oil containing solid contaminants was tested with ball-on-disc tester. The results show that the wear volume increases with increasing the sand content and sand size, and the wear resistance of the composite coating is 20% higher than that of the high-speed plain nickel coating. The main wear mechanisms of the coatings are abrasive wear and adhesive wear. And due to the nano-particle strengthening effect, the wear resistance of the composite coating is improved.
