热浸镀Zn-Al-Mg镀层力学性能研究进展  

Research progress on mechanical properties of hot-dip galvanized Zn-Al-Mg coating

作　　者：米振莉 朱泽升 杨晓宇 唐荻 MI Zhenli;ZHU Zesheng;YANG Xiaoyu;TANG Di(Institute of Engineering Technology,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学工程技术研究院,北京100083

出　　处：《轧钢》2022年第4期9-17,共9页Steel Rolling

基　　金：国家十四五重点研发计划项目(2021YFB3702400);山东省重点研发计划项目(SdSK2020014)。

摘　　要：镀层的力学性能是影响涂镀产品服役寿命的关键。综述了热浸镀Zn-Al-Mg镀层力学性能(附着力、抗裂性、耐磨性、硬度和强度)的评价方法;归纳总结了合金成分中Al、Mg、Si等元素含量,以及热浸镀工艺中热浸镀温度和时间对镀层力学性能影响的研究进展。为了获得耐蚀性能与力学性能俱佳的Zn-Al-Mg镀层,指出应深入研究镀层组织与各力学性能指标之间的对应关系,积极探索不同钢种的热浸镀温度及时间工艺窗口,并将材料基因工程技术、机器学习技术与Zn-Al-Mg镀层性能研究相结合,以更快速、精准地实现Zn-Al-Mg镀层成分设计及组织性能预测,从而指导实际生产。The mechanical properties of the coating are the key factors affecting the service life of the coated products. The evaluation methods of mechanical properties(adhesion, crack resistance, wear resistance, hardness and strength) of hot-dip galvanized Zn-Al-Mg coatings were reviewed. The research progress of the influence of Al, Mg, Si and other alloy composition contents in the coating, hot-dip galvanizing temperature and time on the mechanical properties was summarized. In order to obtain Zn-Al-Mg coating with good corrosion resistance and mechanical properties, it pointed out that the corresponding relationship between coating microstructure and various mechanical property indexes should be deeply studied. And then the hot-dip galvanizing temperature and time window of different steel grades should be actively explored. In addition, the material genetic engineering and machine learning technology should be used in research on properties of Zn-Al-Mg coating to realize the composition design and microstructure and properties prediction quickly and accurately, so as to guide the actual production.

关 键 词：Zn-Al-Mg镀层 力学性能评价 合金成分 热浸镀工艺 镀层组织性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]