汽车用热镀锌板镀层结构  

Investigation on Coating Structure of Hot-Dip Galvanized Steel Sheet for Cars

作　　者：陈秀芳[1] 王淑清[1] 胡金兰[1] 钱贞嫦 刘朝 李安华 

机构地区：[1]东北大学

出　　处：《东北大学学报（自然科学版）》1995年第3期333-336,共4页Journal of Northeastern University(Natural Science)

摘　　要：利用金相、电子探针、Ｘ射线衍射、萃取碳复型、金属薄膜等方法，对汽车用热镀锌板的镀层结构进行了形貌观察和相分析．结果表明，镀层可分为三层：紧贴着基体是Ｆｅ－Ａｌ层，它是由Ｆｅ－Ａｌ金属间化合物组成；中间层是Ｆｅ－Ｚｎ层，它是由Ｆｅ－Ｚｎ金属间化合物及Ｆｅ－Ａｌ－Ｚｎ三元系金属间化合物组成．最外层是Ｚｎ层，但混有Ｆｅ－Ｚｎ金属间化合物．The phase structure and morphology of the coating of hot-dip galvanized steel sheet for cars were investigated by means of electron probe,X-ray diffraction,extraction carbon replica,metal film and optical microscope. It was found that the coating consists of three different layers: the Fe-Al intermetal compound close to α-Fe matrix,the middle layer composed of Fe-Zn and Fe-Al-Zn intermetal compounds and the Zn surface layer.

关 键 词：镀层结构 金属间化合物 热镀锌板 汽车 铁 锌 

分 类 号：U465.21[一般工业技术—材料科学与工程]