热浸镀55%Al-Zn钢板镀层人工断口分析  

Analysis on Artificial Fracture of Hot-dip 55%Al-Zn Alloy Steel Coating

作　　者：赵骏[1] 陈容[1] 吴安术[1] 陈义[1] 

机构地区：[1]攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室,攀枝花617000

出　　处：《理化检验（物理分册）》2013年第1期39-42,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用特殊的镀层人工断口试样的制备方法,成功获取了工业化条件下生产的热浸镀55%Al-Zn钢板镀层断口试样。通过扫描电镜观察和能谱分析,确定了镀层组织的显微断口特征及微区元素成分。结果表明:镀层由两部分组成,一层为外表面的铝-锌合金层,一层为钢板与铝-锌合金层之间的铁-铝-锌-硅合金过渡层。同时还观察到过渡层的生长以及富锌相的形核、长大过程。Through the method which was used for a kind of special specimen preparation for coating artificial fracture, the fracture specimens of hot-dip 55 GA1-Zn alloy steel coating which were produced in industrial condition were obtained successfully. To observe these specimens by SEM and analyze by energy spectrum, the fracture characteristics of coating microstructure and micro-components were indentified. The results showed that the coating was consisted of two layers, one was A1-Zn alloyed layer of the outside surface, and the other was Fe-AI-Zn-Si alloyed transition layer between sheet and AI-Zn alloyed layer. The growth process of transition layer and the nucleation and growth process of zinc enrichment phase were also found.

关 键 词：热浸镀 55%Al-Zn钢板 镀层组织 人工断口 试样制备 

分 类 号：TG113.12[金属学及工艺—物理冶金]