钛合金化学镀Ni-P合金前处理工艺的研究  

Research on Pretreatment of Ti Alloy before Ni-P Electroless Plating on It

作　　者：刘艳辉[1] 高景龙[1] 邵忠财[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110168

出　　处：《电镀与精饰》2008年第12期35-37,共3页Plating & Finishing

摘　　要：研究了浸蚀、浸锌等前处理过程对钛基体渗氢及化学镀Ni-P合金镀层与基体结合力的影响。结果表明,采用混酸浸蚀液,可以有效除去钛合金表面的钝化膜,控制基体中的渗氢量;二次浸锌得到的Ni-P合金镀层结合力较好,镀层均匀、紧密,镍晶粒尺寸较小。The effects of etching, zincing processes on hydrogen permeation in the Ti substrate and adhesion of the deposits were investigated. The micro-morphology of the platings was analyzed with metallography microscope. The results show that the Ti alloy passivation films can be stripped in the solution of hydrochloric acid, nitric acid, hydrofluoric acid and hydrogen content in the substrate can be controlled in the definite range; a good adhesion coating can be obtained after two steps of zincing of the Ti alloy, the microscope analysis on the micro-morphology of deposits demonstrates that the Ni deposits have dense structure and uniformly distribution.

关 键 词：TI合金 前处理 化学镀 NI-P合金 

分 类 号：TQ153.2[化学工程—电化学工业]