镁合金AZ51直接化学镀镍研究  

Direct electroless nickel plating on magnesium alloy AZ51

作　　者：张清[1] 李全安[1] 文九巴[1] 张兴渊[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《轻金属》2007年第12期55-57,共3页Light Metals

摘　　要：采用沉积速率计算、镀镍形貌观察和腐蚀性能测试,研究了镀镍时间对镁合金AZ51直接化学镀镍的影响。结果表明,镁合金AZ51表面可通过直接化学镀镍形成镍磷合金镀层。随着镀镍时间的增加,沉积速率先增加后降低并在镀镍时间为0.5h时取得最大值,而腐蚀速率逐渐降低,腐蚀性能逐渐增强。The effects of plating time on electroless nickel plating of magnesium alloy AZ51 are studied by deposition rate calculation, plating morphology observing and corrosion resistance test. The results show that a Ni - P alloy layer can be obtained on the surface of magnesium alloys AZ51 by direct electroless nickel plating. With the increase of plating time, the deposition rate increases firstly and then decreases and reaches its maximum at 1h. The corrosion rate decreases and the corrosion resistance increases.

关 键 词：镁合金AZ51 化学镀镍 镀镍时间 沉积速率 腐蚀速率 

分 类 号：TG174.44[金属学及工艺—金属表面处理]