Solid contaminants in lubrication system will cause severe wear of sliding compo nents. In order to improve the wear resistance of the material in oil containing solid contaminants,the brush plated nano-Al2O3/Ni compo...Solid contaminants in lubrication system will cause severe wear of sliding compo nents. In order to improve the wear resistance of the material in oil containing solid contaminants,the brush plated nano-Al2O3/Ni composite coating was p repared 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 bal l-on-disc tester. The results show that the wear volume increases with increas ing the sand content and sand size,and the wear resistance of the composite coa ting is 20% higher than that of the high-speed plain nickel coating. The main w ear mechanisms of the coatings are abrasive wear and adhesive wear. And due to t he nano-particle strengthening effect,the wear resistance of the composite coa ting is improved.展开更多
文摘Solid contaminants in lubrication system will cause severe wear of sliding compo nents. In order to improve the wear resistance of the material in oil containing solid contaminants,the brush plated nano-Al2O3/Ni composite coating was p repared 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 bal l-on-disc tester. The results show that the wear volume increases with increas ing the sand content and sand size,and the wear resistance of the composite coa ting is 20% higher than that of the high-speed plain nickel coating. The main w ear mechanisms of the coatings are abrasive wear and adhesive wear. And due to t he nano-particle strengthening effect,the wear resistance of the composite coa ting is improved.