摘要
采用质量分析法，通过四球摩擦磨损试验，分析了两种自修复添加剂三氟化镧和层状硅酸钠的摩擦学性能和自修复性能；通过XPS和EDS分析添加剂在磨斑表面的沉积条件和情况，分析了影响它们的沉积因素和自修复条件；应用AES能谱仪分析磨斑表面元素沿深度的变化；应用SEM扫描电镜对修复前后的磨斑表面作了对比分析。通过对可能适合作为润滑脂自修复添加剂的两种材料的研究，筛选出对磨损表面具有显著修复效果且摩擦学性能优异的三氟化镧和层状硅酸钠，并提出了它们在润滑脂中的摩擦自修复作用机理。
In this paper, self-repairing properties of two kinds of particle materials were investigated in lithium based grease using a four-ball friction tester, based on the weight losses of the tfibomates. Deposit and self-repairing condition of additive is analyzed by way of XPS and EDS ; the spot surface is contrast analyzed applying the SEM. Rare earth fluoride and lamella silicate are screened out as self-repairing additives in lubricating greases from several kinds of particle materials. The experimental results show that the self-repairing performances of rare earth fluoride and layered silicate are remarkable and their tribological properties are excellent. Their anti-wear and self-repairing mechanisms were also studied.
出处
《后勤工程学院学报》
2010年第1期27-31,42,共6页
Journal of Logistical Engineering University
关键词
润滑脂
摩擦磨损
自修复
稀土氟化物
层状硅酸钠
lubricating grease
friction-wear
self-repair
rare earth fluoride
layered silicate
