前处理对镁合金化学镀镍结合力的影响  

INFLUENCE OF PRETREATMENT ON THE ADHESION OF ELECTROLESS NICKEL PLATING ON MAGNESIUM ALLOY

作　　者：郑臻[1] 余新泉[1] 孙扬善[1] 薛烽[1] 任世科[1] 

机构地区：[1]东南大学材料科学与工程系,南京210096

出　　处：《中国腐蚀与防护学报》2006年第4期221-226,共6页Journal of Chinese Society For Corrosion and Protection

基　　金：江苏省自然基金重点项目(BK2004208)

摘　　要：研究了镁合金多种前处理工艺对化学镀镍层与基体之间结合力的影响.采用弯曲法、锉刀实验法和划线划格实验3种镀层结合力测试方法,对化学镀镍层与镁合金基体之间结合力的优劣进行了定性评价.结果表明,采用一步法前处理工艺的试样,镀层与基体之间具有良好的结合力,金相显微观察发现镀层与基体之间具有最薄的中间过渡层.用浸锌工艺能较好地改善镀层与基体间的结合力。但镁合金浸锌工艺值得做进一步的研究.The influences of different pretreatment techniques on the adhesion of electroless nickel plating on magnesium alloy have been studied in this paper. The adhesive force between the coating and the magnesium substrate has been estimated by using bend test, file test, and scribe test. The results indicate that the samples which is one step pretreated has the best adhesion and the thinnest mesosphere between the coating film and magnesium substrate. The adhesive force between the coating and the magnesium substrate can be improved significantly by using proper technique of zincification. Further study aiming at the development of zincification techniques for magnesium alloy is needed.

关 键 词：镁合金 化学镀镍 前处理 结合力 浸锌 

分 类 号：TQ153.1[化学工程—电化学工业]