AZ91D镁合金化学镀Ni-P工艺参数研究  

Study on Process Parameters of Electroless Plating Ni-P on AZ91D Alloy

作　　者：薛燕[1] 黄伟九[1] 谢晓伟[1] 徐凯[1] 

机构地区：[1]重庆工学院材料科学与工程学院,重庆400050

出　　处：《材料导报》2008年第9期128-130,共3页Materials Reports

基　　金：低维材料及其应用技术教育部重点实验室开放基金(KF0604);重庆市教委科技研究项目(KJ070602)

摘　　要：通过正交试验研究了工艺参数对镁合金化学镀镍磷镀层性能的影响,获得了最佳镀覆条件,并考察了镀后热处理工艺。研究表明:在AZ91D镁合金表面化学镀镍磷合金可有效提高镁合金的表面硬度和耐蚀性,在最佳工艺条件下可获得表面平整致密、镀层与基体结合良好、具有银白金属光泽的镍磷镀层;热处理可使镀层硬度上升,但镀层的耐蚀性却下降,获得最优综合性能的热处理温度为340℃。The effect of process parameters on the properties of the electroless plating layer on AZ91D alloy is studied by the orthogonal test method, and the optimal process parameters are obtained. Furthermore, the heat-treatment technics is also discussed. The results show that electroless plating Ni-P on magnesium alloy may effectively improve the surface hardness and anti-corrosion performance of magnesium alloy, and the Ni-P coating with good adhesion and silvery white metal luster may be obtained under the optimal process parameters. The heat-treatment after plating may result in an increase in surface hardness and a decrease in corrosion resistance of coating, and the heat- treatment temperature for optimal coating properties is 340℃.

关 键 词：化学镀镍磷 正交试验 工艺参数 热处理 

分 类 号：TQ153.2[化学工程—电化学工业] TG146.22[一般工业技术—材料科学与工程]