还原剂对铝表面化学镀Ni-Co-P合金耐腐蚀性能的影响  

Effect of reductant on corrosion resistance of Ni-Co-P alloy chemical plated on aluminum surface

作　　者：陈艳芳[1,2] 贾尚华[1] 刘彦肖[1] 范永刚[1] 熊毅[2] 

机构地区：[1]河南科技大学材料学院,河南洛阳471003 [2]河南省有色金属材料科学与加工技术重点实验室,河南洛阳471003

出　　处：《轻合金加工技术》2014年第5期61-64,共4页Light Alloy Fabrication Technology

基　　金：国家自然科学基金(50801021);河南科技大学青年科学基金(2012QN042);河南科技大学大学生训练计划(2012028)

摘　　要：研究镀液中还原剂浓度对铝表面化学镀Ni-Co-P合金性能的影响。运用增重法分析了浓度对镀速的影响;采用JSM-5610LV型扫描电镜、能谱仪、CHI660C型电化学工作站研究化学镀Ni-Co-P合金的表面形貌、微观成分和耐腐蚀性能。结果表明,镀液中还原剂浓度为30 g/L时,镀速最大,镀层均匀、紧凑、细小,镀层的镍、钴含量适中,耐腐蚀性较好。The effect of reductant concentration on chemical plating function of Ni-Co-P alloy on aluminum surface was investigated. The effect of concentration on plating rate was analyzed by weight gaining method. The morphology, micro-compositions and corrosion resist- ance of aluminum surface being Ni-Co-p chemical plated were analyzed by the JSM-5610LV scanning electron microscopy, the energy spectrum-scope, and the CHI660C type electro- chemical workstation. The results show that the plating rate reaches the maximum, the coating structure is uniform, compacted and fine, and the nickel and cobalt content in the coating lay- er is reasonable, and the corrosion resistance is better while reductant concentration in the bath is 30 g/L.

关 键 词：铝 Ni-Co-P合金 还原剂浓度 耐腐蚀性 

分 类 号：TG174.4[金属学及工艺—金属表面处理]