热喷涂镍基高温润滑涂层的研究  

Study on Flame Spraying Ni-Based High Temperature Lubricating Coating

作　　者：冯大鹏[1] 刘近朱[1] 毛绍兰[1] 邵鑫[1] 高金堂[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑开放研究室,甘肃兰州730000

出　　处：《机械工程材料》1999年第6期15-17,32,共4页Materials For Mechanical Engineering

摘　　要：采用粉末火焰喷涂技术以1Cr18NigTi为底材，以CaF2／BaF2为润滑剂，采用Ni60A自熔粉末为基体制备了镍基高温润滑涂层，并对该涂层的摩擦学性能进行了评价。发现CaF2／BaF2－Ni60A涂层中CaF2／BaF2含量以25％最佳；CaF2／BaF2－Ni6OA涂层在高温下（＞600°C）具有良好的润滑性能（O．27），采用粉末火焰喷涂用于制备高温润滑涂层是可行的。A Ni-based high temperature lubricating coating was prepared on 1Cr18Ni9Ti stainless settl byflame spray process- The lubricant was CaF2/BaF2 eutectic, and the base material of coating was Ni6OA' In thispaper, the coating's tribological properties were studied. The results show that the best content of CaF2/BaF2 is25wt%, and the friction coefficient of the coating is 0. 27± 0. 05 when it is rubbed with lCrl8Ni9Ti pin- CaF2/BaF2-Ni6OA coating has good lubricating properties at high temperature.

关 键 词：热喷涂 镍基合金 润滑剂 高温润滑涂层 

分 类 号：TG174.442[金属学及工艺—金属表面处理]