钛基化学镀耐磨涂层微动磨损性能研究

Fretting wear behavior of wear-resisting electroless plating based on Titanium alloys

以提高钛合金抗微动磨损性能为宗旨,研究了化学镀Ni-Tl-B(NTB)三元合金及Ni-Tl-B/BN、Ni-Tl-B/SiC复合镀层制备工艺,利用X射线衍射技术、扫描电镜及能谱分析等手段,分析了三种镀层的结构,观察了镀层表面形貌,利用微动摩擦磨损试验机评价了化学镀处理对钛合金抗磨的影响,实验结果表明:该工艺得到的Ni-Tl-B、Ni-Tl-B/BN、Ni-Tl-B/SiC多元复合镀层表面光亮、质感均匀、镀层结合力良好,经过相同次数微动磨损试验,Ni-Tl-B镀层的耐磨性能比TA7及Ni-Tl-B/BN、Ni-Tl-B/SiC镀层好。

For improving the fretting wear behavior of titanium alloy TA7,Preparation handicraft of Ni-Tl-B ternary alloy,Ni-Tl-B/BN、Ni-Tl-B/SiC composite plating by electroless plating was investigated.By employing XRD,SEM and EDAX analysis methods,the structure and surface morphology of three kinds cladding material have been studied.The results show that：the surface with the multivariant composite coating was bright,the sense of quality was homogeneous,The cladding material bond was fine;Course identical number of times fretting wear test,the wear resistance with electroless plating Ni-Tl-B is better than TA7 and Ni-Tl-B/BN,Ni-Tl-B/SiC.