两种汽车用镀锌钢板在海洋大气环境中的腐蚀产物与耐蚀性对比  

Comparision of Corrosion Products and Corrosion Resistance of Two Kinds of Automotive Galvanized Steel Sheets in Marine Atmosphere

作　　者：龚利华[1] 朱玉巧[1] 戚霞[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,镇江212003

出　　处：《机械工程材料》2009年第11期79-81,89,共4页Materials For Mechanical Engineering

摘　　要：对在海洋大气环境中暴露2 a后的电镀锌和热镀锌汽车用钢板进行了腐蚀产物分析,并比较了两者的差异。结果表明:两者均产生了致密的腐蚀产物,腐蚀产物的物相组成也基本相同;在镀层厚度相同的情况下,电镀锌和热镀锌钢板具有相近的耐蚀性。Corrosion products of automotive electrogalvanized steel sheet and hot-dip galvanized steel sheet were analyzed and compared after marine atmospheric exposure for two years. The results show that both the corrosion products were compact and had the similar phase composition. Electrogalvanized steel and hot-dip galvanized steel had similar corrosion resistance when the thickness of the coated layer was the same.

关 键 词：电镀锌板 热镀锌板 大气腐蚀 腐蚀产物 

分 类 号：TG174.3[金属学及工艺—金属表面处理]