镁合金微弧氧化陶瓷层表面化学镀镍研究  

Study on Electroless Nickel Plating on Micro-arc Oxidation Ceramics Layer of Magnesium Alloy

作　　者：刘向艳[1] 郭锋[1] 李鹏飞[1] 张登峰[1] 毛泽旭[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,呼和浩特150001

出　　处：《表面技术》2010年第5期8-10,18,共4页Surface Technology

基　　金：内蒙古自治区自然科学基金项目(2009MS0801);高等学校博士学科点专项科研基金(20091514110003)

摘　　要：在镁合金微弧氧化陶瓷层表面化学镀镍,研究了施镀温度和时间对镀速的影响,分析了镀层的形貌、成分组成及其与陶瓷层的结合情况,测试了镀层的磨损性能和耐腐蚀性能。结果表明:在80℃的硫酸镍体系镀液中施镀60 min,可以得到平均厚度35μm左右的中磷镍镀层;镀层致密、厚度均匀,且与陶瓷层相互嵌合、结合紧密,具有较好的耐磨性能和耐腐蚀性;镀镍层对陶瓷层有很好的封孔作用。The process of electroless nickel plating on the micro-arc oxidation ceramics of the magnesium alloy was tried through studying the influence of plating temperature and time on deposition speed,analyzing the morphology and components of the coating and the adhesion to ceramic matrix,testing the coating corrosion and abrasion performance.The result shows that medium phosphorus coating with average thickness of about 35 μm can be prepared in nickel sulfate system solution at 80 ℃ for 60 min.The coating is compact and uniform,and engages with the surface of ceramic layer.The nickel coating has good abrasion resistance and corrosion resistance.Nickel deposit is good for sealing on ceramic coating.

关 键 词：镁合金 微弧氧化 化学镀镍 

分 类 号：TG174.453[金属学及工艺—金属表面处理] TQ153.1[金属学及工艺—金属学]