【作者】 曹博蕊； 王从曾； 苏学宽； 马捷；

【Author】 CAO Bo-rui, WANG Cong-zeng, SU Xue-kuan, MA Jie (School of Material Science and Engineering, Beijing University of Technology, Beijing 100022, China )

【机构】 北京工业大学材料科学与工程学院；

【摘要】 实验研究了镁合金徽弧氧化后再进行化学镀镍复合涂层的结构与性能。结果表明,微弧氧化层的组成物主要是MgO、Mg2SiO4,化学镀镍层经适当热处理后晶化形成Ni和Ni3P组织,硬度可达1200HV左右。微弧氧化层与镁合金基体结合牢固,以微弧氧化层作为化学镀镍的中间层,能得到结合力良好的化学镀镍层,且硬度和耐蚀性都有较大的提高,获得了镁合金表面处理的新途径。更多还原

【Abstract】 Structure and Performance of electroless nickel plating after micro-arc oxidization on magnesium alloy were researched. The results show that the micro-arc oxidation layer consist of MgO and Mg2SiO4 , electroless nickel layer consist of the crystals of Ni and Ni3P, its hardness is 1200HV by heat treatment at 350 ℃.Micro-arc oxidization coating and magnesium alloy are well-knit and the Ni-P coating tightly connects with micro-arc oxidation coating. Electroless nickel plating deposited on the micro-arc oxidation layer enhances the corrosion resistance and improves the hardness, which provides a good protection for the magnesium alloy.更多还原