板带钢热浸镀锌铝镁技术的研究进展  

Research status of hot-dip galvanized Zn-Al-Mg sheet

作　　者：姚舜 田耕 马幸江 周欢[3] 燕龙 赵爱民 YAO Shun;TIAN Geng;MA Xingjiang;ZHOU Huan;YAN Long;ZHAO Aimin(Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Beijing Shougang Co.,Ltd.,Beijing 100041,China;Cold Rolling Department,Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063200,Hebei,China)

机构地区：[1]北京科技大学钢铁共性技术协同创新中心,北京100083 [2]北京首钢冷轧薄板有限公司,北京100041 [3]首钢京唐钢铁联合有限公司冷轧作业部,河北唐山063200

出　　处：《钢铁研究学报》2023年第12期1451-1462,共12页Journal of Iron and Steel Research

摘　　要：热浸镀是一种经济、高效的钢铁材料表面处理技术,其产品在钢材的防腐蚀、延长使用寿命和节能等方面起到十分重要的作用。随着科学技术的发展以及人类社会的进步,耐腐蚀性更高、经济性能更好的新型合金镀锌层、复合镀层成为研究和开发的重点。镀液中加入适量的Mg和Al元素后材料耐腐蚀性和耐损伤性更好,因此热浸镀锌铝镁技术得到广泛应用。分析了热浸镀锌技术的发展历程,总结了近几年锌铝镁镀层的成分和组织特征,阐述了镀锌过程中镀层的组织演变和凝固机制。对钢板表面与镀液之间的润湿性、界面反应和合金元素在界面层的扩散行为进行了分析,对热浸镀锌铝镁板的耐腐蚀性进行了总结,从而期望加快推进热浸镀锌铝镁技术在汽车等行业中的发展和应用。Hot-dip galvanized is an economical and effective surface treatment method for steel materials,and its products play a very important role in corrosion prevention,lifespan extension,and energy conservation of steel.With the development of science and technology and the progress of human society,new alloy coatings and composite Zn coatings with higher corrosion resistance and better economic performance have become the focus of research and development.The corrosion resistance and damage resistance of materials are better after adding the proper amount of Mg and Al to the plating solution so that the hot-dip galvanized Zn-Al-Mg alloy layer is widely used.The development of hot-dip galvanized technology was analyzed,and the composition and structure characteristics of Zn-Al-Mg alloy layer in recent years were summarized.The structure evolution and solidification mechanism of the coating during the galvanizing process were described.The wettability between the steel surface and the plating solution,the interface reaction and the diffusion behavior of alloy elements in the interface layer were analyzed.The corrosion resistance of hot-dip galvanized Zn-Al-Mg sheet was summarized.Therefore,it was expected to accelerate the development and application of hot-dip galvanized Zn-Al-Mg technology in automobiles and other industries.

关 键 词：板带钢 热浸镀锌铝镁 镀层组织 界面反应 

分 类 号：TG178[金属学及工艺—金属表面处理]