磷酸酯离子液体对钢/铝摩擦副的摩擦性能研究  

The Tribological Properties of Phosphate Ionic Liquid as Lubricant for Steel/Al Tribo-couple

作　　者：姜栋[1,2] 胡丽天[1] 冯大鹏[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000 [2]中国科学院北京研究生院,北京100049

出　　处：《摩擦学学报》2011年第6期599-603,共5页Tribology

基　　金：国家自然科学基金(51175492);国家重点基础研究发展规划项目(973)(2011CB706603)资助~~

摘　　要：为解决钢/铝摩擦副润滑困难的现状,合成了1种磷酸酯类离子液体.采用SRV微动摩擦磨损试验机对其在钢/铝摩擦副条件下的摩擦学行为进行了测试;采用扫描电子显微镜(SEM)及X光电子能谱(XPS)对磨损表面进行了分析.结果表明:此磷酸酯离子液体对钢/铝摩擦副具有优良的减摩抗磨性能,优于常见的含氟类离子液体(LB106和LP106)及液体石蜡.SEM和XPS分析结果表明:磷酸酯离子液体在摩擦过程中于金属表面形成了包含有机金属配合物,磷酸铝盐的复合边界润滑膜,从而使其表现出优异的摩擦学性能.1-methyl-3-hexylimidazolium phosphate ionic liquid（Peh106） was synthesized and evaluated for steel/Al contacts in ball-on-disk tests on an Optimol SRV oscillating friction and wear tester under variable sliding frequencies and loads.The results show that the tribological properties of Peh106 were better than that of conventional ionic liquids（LB106 and LP106） and liquid paraffin（LP）.Peh106 reduced the wear volume of wear scars and the mean friction coefficient.The morphologies of wear scars of Al blocks and chemical compositions of the boundary films on Al blocks were analyzed using scanning electron microscope（SEM） and X-ray photoelectron spectrometer（XPS）.The SEM and XPS analysis shows that the boundary lubricant film on the worn surface of Al block prevented the direct contact of frictional pairs and improved the tribological properties of Peh106.

关 键 词：钢/铝摩擦副 离子液体 边界润滑 

分 类 号：TH117.3[机械工程—机械设计及理论]