镁合金表面电沉积镍层工艺及其耐蚀性的研究  

A Study of Technology and Corrosion Resistance of Electrodeposited Nickel Layer on Magnesium Alloy Surface

作　　者：严莉[1] 初立英 吴化[1] 李雪松[1] 

机构地区：[1]长春工业大学先进结构材料省部共建教育部重点实验室,吉林长春130012 [2]吉林航空维修有限责任公司技术工程部,吉林吉林132102

出　　处：《电镀与环保》2013年第5期7-9,共3页Electroplating & Pollution Control

摘　　要：利用电沉积方法在镁合金表面制备金属镍层,并对沉积镍层前的预处理工艺进行了细致的研究。采用X射线衍射仪(XRD)对各处理层的相结构及成分进行了分析,采用扫描电子显微镜(SEM)对各处理层的表面形貌进行了观察,采用电化学工作站测试了表面镀镍层的耐蚀性。结果表明:镁合金表面经过预处理,可以获得均匀、致密的镍金属层,且其在氯化钠溶液中具有良好的耐蚀性。A nickel layer was electrodeposited on the surface of magnesium alloy and its pretreatment process was studied carefully. The phase structure and composition of each treated layer were analyzed by X-ray diffraction （XRD）, the surface morphology observed by scanning electron microscopy （SEM）, and the corrosion resistance of surface nickel coating tested by electrochemical workstation. The results show that the pretreated magnesium alloy surface can obtain a uniform and dense nickel metal layer and has a nice corrosion resistance in sodium chloride solution.

关 键 词：镁合金 浸锌 耐蚀性 

分 类 号：TQ153[化学工程—电化学工业]