摘要
镁合金在腐蚀性环境中常常发生应力腐蚀开裂失效问题。论述了镁合金应力腐蚀开裂的机理,以及阳极溶解、氢致开裂、应力作用等主要诱因,从提高成分品质、进行表面处理、降低及消除应力、优化组织控制(尤其是组织超细化)等方面简介了国内外应对镁合金应力腐蚀开裂的最新措施,并指出了目前在提高镁合金抗应力腐蚀开裂性能的研究发展方向及亟待解决的问题。
Stress corrosion cracking （SCC） is a common failure when Mg alloys are applied in corrosive environments. The SCC mechanisms of Mg alloys as well as the main causes such as anodic dissolution, hydrogen induced embrittlement and stress are discussed. The latest methods for controlling the SCC of Mg alloys at home and abroad are introduced, including the quality improvement of the constituents, surface treatment, reducing and eliminating stress, and microstructure control （particularly mierostructure ultra-fining）. The direction and critical problems of the present studying of improving the resistance to SCC of Mg alloys are also put forward.
出处
《腐蚀与防护》
CAS
北大核心
2015年第7期677-683,共7页
Corrosion & Protection
基金
江苏省自然科学基金(BK2011249
BK20131373)
南通市应用研究计划项目(BK2012042)
关键词
镁合金
应力腐蚀开裂
影响因素
应对措施
组织超细化
magnesium alloy
stress corrosion cracking
influential factor
controlling method
microstructureultra-fining
