镁合金微弧阳极氧化-电泳涂装的研究  

Microarc Oxidation and Electrophoresis Painting of Magnesium Alloy

作　　者：朱智勇[1] 黄娇[2] 闫芬英[2] 赵春英[2] 

机构地区：[1]中航沈飞民用飞机有限责任公司,辽宁沈阳110850 [2]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《电镀与精饰》2011年第12期1-4,共4页Plating & Finishing

摘　　要：将镁合金表面微弧阳极氧化预处理后,再经过纳米改性电泳涂装得到了复合涂层,并对复合涂层的耐蚀性能进行了评价。金相显微观测表明,纳米改性电泳漆膜表面有较均匀的小突起,而未改性复合膜层表面比较光滑。常规性能测试表明,与未改性复合漆膜相比,经改性后的复合涂层漆膜附着力、硬度及抗冲击性能都有所提高。盐雾试验和电化学阻抗曲线表明:改性复合膜层的耐蚀性明显优于未改性复合膜层。Magnesium alloy was painted with nano modified electrophoretic paint after micro arc oxidation, and the corrosion resistance of composite coatings was evaluated by salt spray and electrochemical tests. The result shows that the nano modified electrophoretic coating has small protrusions on the surface, whereas unmodified composite coating is very uniform and smooth. Compared with unmodified composite coating, the modified composite coating has a higher adhesion, hardness, impact and corrosion resistance.

关 键 词：镁合金 电泳 耐蚀性 

分 类 号：TG174.45[金属学及工艺—金属表面处理]