镁合金淡黄色微弧氧化膜的制备及性能研究  

Preparation and Properties of Light-Yellow Micro-arc Oxidation Coating on Magnesium Alloy

作　　者：朱宏达 管秀荣[1] 邵忠财[1] ZHU Hongda;GUAN Xiurong;SHAO Zhongcai(School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学环境与化学工程学院

出　　处：《电镀与环保》2019年第6期58-60,共3页Electroplating & Pollution Control

摘　　要：在镁合金表面制备了淡黄色微弧氧化膜,并对其耐蚀性进行了研究。结果表明:与镁合金基体相比,微弧氧化膜的点滴时间更长,自腐蚀电位更正,自腐蚀电流密度更小。这说明经过微弧氧化处理后镁合金的耐蚀性明显提高。微弧氧化膜表面平整、均匀,结合力较好。XRD分析结果显示,微弧氧化膜的组成主要为MgO、Mg2SiO4和Mg。The light-yellow micro-arc oxidation coating was prepared on magnesium alloy, and its corrosion resistance was studied. The results showed that compared with magnesium alloy substrate, the dropping time of micro-arc oxidation coating was longer, the self-corrosion potential was higher and the self-corrosion current density was lower, which indicated that the corrosion resistance of magnesium alloy after micro-arc oxidation treatment was significantly improved. The micro-arc oxidation coating was smooth and uniform, with good adhesion to the substrate. XRD analysis indicated that the micro-arc oxidation coating was mainly composed of MgO, Mg2SiO4 and Mg.

关 键 词：镁合金 微弧氧化 淡黄色 制备 

分 类 号：TG174[金属学及工艺—金属表面处理]