镁合金钼酸盐转化膜的制备及改性研究  

Preparation and Modification of Molybdate Conversion Coating on Magnesium Alloy

作　　者：万永壮 戴诗行 邵忠财[1] WAN Yong-zhuang;DAI Shi-hang;SHAO Zhong-cai(Shenyang Ligong University,Shenyang Liaoning 100159,China)

机构地区：[1]沈阳理工大学,辽宁沈阳100159

出　　处：《辽宁化工》2023年第11期1599-1601,1709,共4页Liaoning Chemical Industry

摘　　要：采用化学转化法在AZ91D镁合金表面制备钼酸盐转化膜。通过Ce-Mo转化和添加剂改善。通过SEM观察发,改善后膜层表面均匀。由EDS可知,在添加剂增强后,P和Mo元素的含量较高。相比较传统转化膜而言,腐蚀电位的大小正移了约0.4 V,阻抗值达到了23730Ω·cm^(2),耐蚀性得到提高。Molybdate conversion coating was prepared on the surface of AZ91D magnesium alloy by chemical conversion method.It was improved by Ce-Mo conversion and additives.Through SEM observation,the surface of the film was uniform after improvement.It was seen from EDS that the content of P and Mo elements was higher after the additive was enhanced.Compared with the traditional conversion coating,the corrosion potential was shifted by about 0.4 V,the impedance value reached 23730Ω·cm^(2),and the corrosion resistance was improved.

关 键 词：镁合金 钼酸盐 添加剂 增强 

分 类 号：TG17[金属学及工艺—金属表面处理]