铝复合添加剂的磨损自修复和摩擦学特性  

Wearing Self-repairing and Tribological Properties of Al Complex Additives

作　　者：莫云辉[1] 陶德华[1] 王帅宝[1] 韦习成[2] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]上海大学材料科学与工程学院,上海200072

出　　处：《润滑与密封》2009年第1期46-48,共3页Lubrication Engineering

摘　　要：研制了铝复合半流体脂，采用机械摩擦涂覆的方法，在铜基体上获得了较厚的摩擦涂层。在MS-800型摩擦磨损实验机上，考察了摩擦涂层在不同载荷下的摩擦磨损特性，对比了加入Al-Sn2种添加剂与加入Al-Sn-Zn3种添加剂形成摩擦涂层的摩擦学特性，用X射线能谱仪和扫描电镜分析了表面主要元素和涂层厚度。试验结果表明，铝复合半流体脂形成的自修复摩擦涂层的厚度为15～25μm，它能有效地改善摩擦副的摩擦磨损性能。Al complex semi-liquid grease was prepared. Adopting mechanical friction besmearing technique, the obvious thick friction coatings on the Copper-base were obtained. On a rebuilding model MS-800 4-balls tester,friction and wear behavior of the coatings under various loads was reviewed. Tribological properties were compared separately with two sorts of coatings, one is contained A1-Sn two additives and another is contained Al-Sn-Zn three additives. Analysis of the surface element distribution and coating thickness was made by means of Energy Dispersion X-ray spectrometer （EDX） and Scanning Electron Microscope （ SEM ）. The results indicate that the thickness of self-repairing friction coatings formed by Al complex semi-liquid grease reaches to 15 ～ 25μm. The anti-wear and friction reducing behavior of tribo-pair can be improved effectively.

关 键 词：添加剂 铝复合半流体脂 自修复 摩擦学特性 

分 类 号：TH117.1[机械工程—机械设计及理论]