摩擦表面纳米铜自修复膜显微硬度分析  

The Micro-hardness Analysis of Self-repairing Film Formed by Nano-Cu

作　　者：刘谦[1] 许一[2] 王晓丽[2] 史佩京[2] 于鹤龙[2] 

机构地区：[1]装甲兵工程学院装备再制造工程系,北京100072 [2]装甲兵工程学院装备再制造技术国防科技重点实验室,北京100072

出　　处：《中国表面工程》2010年第3期56-59,63,共5页China Surface Engineering

基　　金：国家973课题(2007CB607601);国家自然科学基金重点项目(50735006);国防科技重点实验室基金(9140C85040208OC85);军队科研"十一五"预研项目资助

摘　　要：利用T-11摩擦磨损试验机和MM-200摩擦磨损试验机进行了用纳米铜添加剂润滑的摩擦磨损试验,在磨痕表面形成了富含Cu元素的表面膜。纳米压痕试验结果表明,基体的硬度为10～13GPa,而表面自修复膜的硬度从5GPa到10GPa,变化范围比较大。从硬度以及加工硬化程度和蠕变位移的测试结果可以看出,摩擦表面自修复膜的这些性能与纯铜膜的性能有很大的区别,而且在不同的深度有不同的变化,说明薄膜不是均匀铜膜,而是在成分、组织结构上有变化的复合膜。The wear test was carried out on a T-11 ball-on-plate friction and wear tester and MM-200 friction and wear tester.A film mainly made of Cu was formed on the worn surface.Nano-indentation tests indicated that the copper film formed by Cu nano-particles additives has a lower hardness compared with that of the base material.The hardness of base materials varied from 10 GPa to 13 GPa,while the hardness of the self-repairing film was varied from 5 GPa to 10 GPa.Results showed that the hardness,work hardening and creep displacement values of the self-repairing film were markedly different from that of the pure Cu film and varied with depth.This tells that the self-repairing film is a composite film of varying composition and structure rather than a homogeneous Cu film.

关 键 词：纳米铜 自修复膜 纳米压痕 显微硬度 

分 类 号：TH117.3[机械工程—机械设计及理论]