AZ91D镁合金表面铈转化膜及环氧/氟碳涂层附着性研究  

Adhesive Performance of Ce Conversion Coating/Epoxy Resin (Fluorocarbon Resin) Composite Coating on AZ91D Magnesium Alloy

作　　者：李文钊[1] 王波[2] 郭毅[1] 鲁彦玲[1] 杜仕国[1] 

机构地区：[1]军械工程学院 [2]中国人民解放军62191部队

出　　处：《表面技术》2013年第3期63-66,共4页Surface Technology

摘　　要：利用化学浸泡法在AZ91D镁合金表面制备铈盐转化膜,优化了铈盐转化处理工艺,研究了铈盐转化膜的微观形貌、组织结构及耐蚀性能。在转化膜表面分别涂覆环氧树脂和氟碳树脂涂层,测试了两种复合涂层的力学性能。结果表明:铈盐转化膜由双层膜组成,在优化的工艺条件下进行转化处理能够提高镁合金的耐腐蚀能力;铈盐转化膜对环氧树脂的适应性要优于氟碳树脂。Ce conversion coating was prepared on the surface of AZ91D magnesium alloy by chemical immersion, ceri-um conversion treatment process was optimized and the morphology of the cerium conversion coating, organizational structure and corrosion resistance were studied. Epoxy resin and fluorocarbon resin were respectively brushed on the conversion coating, and the mechanical properties of the two composite coating were tested. The results showed that the Ce conversion coating was con-sisted by two-layer-coatings and conversion processing in the optimization of process conditions is able to improve the resistance of basement to corrosion, the adaptability of Ce conversion coating to epoxy resin was better than to fluorocarbon resin.

关 键 词：镁合金 铈盐转化膜 涂层 耐蚀性 附着力 

分 类 号：TG174.46[金属学及工艺—金属表面处理]