沉积温度对AZ31镁合金镍磷合金镀层的影响  

Effects of Bath Temperature on Electroless Ni-P Plating of AZ31 Magnesium Alloy

作　　者：尚淑珍[1] 路贵民[2] 赵祖欣[1] 万以郡[1] 

机构地区：[1]华东理工大学机械与动力工程学院,上海200237 [2]华东理工大学资源与环境工程学院,上海200237

出　　处：《腐蚀与防护》2010年第2期125-127,共3页Corrosion & Protection

基　　金：上海市重点学科建设项目(B503)资助

摘　　要：分析了AZ31镁合金表面化学镀镍磷合金工艺中,温度对镀层硬度、沉积速率、耐腐蚀性、微结构及形貌等特性的影响。结果表明,在镀液pH值为6.5,化学镀时间为45 min时,施镀的最佳温度为85～90℃,所得到的镁合金表面镀层光亮,胞状组织均匀致密,与基体结合牢固,耐蚀性明显提高,并具有较高的硬度。The effects of temperature on micro-hardness, depositing velocity, corrosion resistance, microstructure and morphology of the electroless plated Ni-P coatings on AZ31 magnesium were analyzed. The results revealed that the depositing temperature was an important parameter which influenced the coating performance greatly. The coatings with properties of bright surface, uniform and dense structure, strong adhesion with substrate, good corrosion resistance and so on were obtained when the depositing temperature was 85-90℃.

关 键 词：AZ31镁合金 沉积温度 镍磷合金镀层 化学镀镍磷 镀层硬度 合金工艺 沉积速率 耐腐蚀性 

分 类 号：TQ153.2[化学工程—电化学工业] TG174.44[金属学及工艺—金属表面处理]