镁合金点蚀的研究进展  

Research Progress of Pitting Corrosion of Magnesium Alloys

作　　者：樊志民 于锦[1] 宋影伟[2] 单大勇[2] 韩恩厚[2] FAN Zhimin;YU Jin;SONG Yingwei;SHAN Dayong;HAN En-Hou(School of Science,Shenyang University of Technology,Shenyang 110870,China;Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]沈阳工业大学理学院,沈阳110870 [2]中国科学院金属研究所中国科学院核用材料与安全评价重点实验室,沈阳110016

出　　处：《中国腐蚀与防护学报》2018年第4期317-325,共9页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金(51471174);国家重点研发计划课题(2016YFB0301105)~~

摘　　要：总结了国内外针对镁合金点蚀的最新研究成果,特别是腐蚀环境和微观结构对镁合金点蚀的萌生和发展的影响规律;介绍了新型微区原位技术在镁合金点蚀研究上的应用,并指出将微区原位技术与传统腐蚀研究方法相结合是揭示镁合金点蚀机理的重要手段。同时,提出了可减缓镁合金点蚀的方法。最后,对未来镁合金点蚀的研究重点和方向进行了分析和展望,以期对解决镁合金点蚀问题起到一定的指导意义。Magnesium alloys, as the lightest structural metallic material, have great potential for applications in transportation、electronic and aerospace industries. However, the poor corrosion resistance extremely limits their utilization. Pitting corrosion is the most common localized corrosion form, which is a kind of hidden danger and frequently causes damage to structural parts of Mg-alloys. The effect of corrosive environment and microstructure of alloys on the initiation and propagation of pitting corrosion are summarized based on the recent research progress at home and abroad while the in situ techniques of micro area measurement for pitting corrosion research are introduced. It follows that the combination of in situ techniques and traditional corrosion research methods is the most efficient approach to reveal the pitting corrosion behavior of Mg-alloys. Meantime, the possible methods for declining the pitting corrosion of Mg-alloys are suggested. Eventually, the research focus of pitting corrosion of Mg-alloys in the future is analyzed and forecasted, expecting to give some advices to improve the pitting corrosion-resistant of Mgalloys.

关 键 词：点蚀 镁合金 腐蚀环境 微观结构 微区原位技术 

分 类 号：TG174[金属学及工艺—金属表面处理]