摘要
利用球 -盘接触式摩擦磨损试验机 ,在室温、大气和润滑摩擦条件下研究了Al2 O3涂层 /NiCr粘结涂层与Al2 O3涂层的摩擦磨损特性 ,并用拉伸试验方法测定了涂层与基体之间的粘结强度 .结果表明 ,Al2 O3涂层 /NiCr粘结涂层的耐磨性能比Al2 O3涂层好 ;基体的表面粗糙度对涂层的粘结强度影响较大 ;本研究试验条件中对磨损特性最佳的涂层厚度为 3 0 0 μm ;Al2 O3涂层 /NiCr粘结涂层的磨损机理受残余应力的影响很大 ;粘结喷涂在减少涂层中的残余应力起着很重要的作用 .
The wear behavior of bonde coating deposited on steel was investigated under lubrication. The parameters of sliding wear are normal loads, coating thickness. As a result, the wear resistance of Al 2O 3/NiCr(bonde) coating was remarkably greater than that of Al 2O 3 coating. The optimized coating thickness was found to be 300?μm to ensure good anti-wear. The bond coating played important role in decreasing residual stress. The residual stress had much influence on wear mechanism. These results were correlated with the stress state of coating and the microstructure of coating.
出处
《延边大学学报（自然科学版）》
CAS
2002年第1期41-45,共5页
Journal of Yanbian University（Natural Science Edition）
