Al-Zn-Mg合金应力腐蚀断裂的研究进展

doi:10.13251/j.issn.0254-6051.2020.09.003

摘要/Abstract

摘要： Al-Zn-Mg合金的应力腐蚀断裂成为其进一步应用的瓶颈问题。对近年来国内外Al-Zn-Mg合金应力腐蚀断裂的研究进展进行了概括,阐述了主要合金元素和微量元素对合金应力腐蚀断裂的影响,重点分析了高温预析出处理、单级时效、双级时效、三级时效等热处理对析出相和合金应力腐蚀敏感性的作用规律。针对Al-Zn-Mg合金应力腐蚀断裂研究目前存在的问题,提出了未来的研究方向。

关键词: Al-Zn-Mg合金, 应力腐蚀断裂, 合金元素, 热处理

Abstract: In view of the fact that stress corrosion cracking has become a bottleneck problem for further application of Al-Zn-Mg alloys,the research progress in recent years is summarized in this paper for the stress corrosion cracking of Al-Zn-Mg alloys at home and abroad.The effects of main alloying elements and trace elements on the stress corrosion cracking (SCC) of the alloy are described,and the function rule of heat treatments (including high temperature pre-precipitation,single-stage aging,two-stage aging,three-stage aging and so on) on both the precipitated phase and the stress corrosion sensitivity are also analyzed.In view of the existing research problems on the stress corrosion cracking of Al-Zn-Mg alloy,the future research directions are put forward.

Key words: Al-Zn-Mg alloy, stress corrosion cracking, alloying element, heat treatment

中图分类号:

TG172.9

刘敬福, 周祥春, 曲迎东. Al-Zn-Mg合金应力腐蚀断裂的研究进展[J]. 金属热处理, 2020, 45(9): 21-28.

Liu Jingfu, Zhou Xiangchun, Qu Yingdong. Research progress of stress corrosion cracking (SCC) of Al-Zn-Mg alloy[J]. Heat Treatment of Metals, 2020, 45(9): 21-28.

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