摘要
Mg-Li合金作为目前最轻的金属结构材料,在航空航天、军事、电子产业等领域具有良好的发展前景。但较差的耐蚀性严重制约了Mg-Li合金的广泛应用,因此研究其腐蚀机理和表面防护极为重要。基于国内外的研究进展,综述了Mg-Li合金的腐蚀机理,系统总结了Mg-Li合金的表面防护方法,包括电镀、化学镀、化学转化、阳极氧化、涂层涂覆及其他表面防护方法。建议深入研究各种表面处理方法对Mg-Li合金的防护机理,通过涂层的复合化、自愈化、疏水化来提高涂层对Mg-Li合金的防腐效果。
As the lightest metal structural material,Mg-Li alloy has a good development prospect in the fields of aerospace,military,and electronic industry.However,the poor corrosion resistance seriously limits the wide application of Mg-Li alloy,so it is important to study the corrosion mechanism and surface protection of Mg-Li alloy.Based on the research progress at home and abroad,the corrosion mechanism of Mg-Li alloy was reviewed.The surface protection methods for Mg-Li alloy,including electroplating,electroless plating,chemical transformation,anodic oxidation,overlay coating,and other methods,were systematically summarized.It is suggested that the protection mechanisms of various surface treatment methods on Mg-Li alloy should be further studied,and the anti-corrosion effects of coatings on Mg-Li alloy can be improved by the compositing,self-healing,and hydrophobing of coating.
作者
彭翔
吴国华
刘文才
徐仕豪
刘宏杰
PENG Xiang;WU Guo-hua;LIU Wen-cai;XU Shi-hao;LIU Hong-jie(National Engineering Research Center of Light Alloy Net Forming,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2022年第1期1-14,共14页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(51771115,U2037601)
上海航天技术研究院−上海交大航天先进技术联合研究中心资助项目(USCAST2020-14)
航天一院高校联合创新基金资助项目(CALT2020-TS07)。
关键词
MG-LI合金
腐蚀机理
化学镀
化学转化
阳极氧化
Mg-Li alloy
corrosion mechanism
electroless plating
chemical transformation
anodic oxidation
