摘要
从合金成分、热处理制度以及显微组织特征等方面对如何提高7xxx系铝合金抗应力腐蚀性能进行了系统的分析,重点阐述了影响合金抗应力腐蚀性能的本质因素——GBP、MPT、PFZ、晶界原子偏聚等。同时提出了合理可行的提高7xxx系铝合金抗应力腐蚀性能的解决途径,为新一代超高强铝合金的成分设计和工艺优化提供了重要的参考。
The effects of alloy compositions, heat treatments and microstructures on the stress corrosion resis- tance of 7xxx alloys are systematically summarized and analyzed. The inherent factors that affect the stress corrosion resistance-GBP, MPT, PFZ and grain boundary atom segregation have been especially elaborated. And some approa- ches to improve the stress corrosion resistance were put forward that should lead to further improvement in designing of new alloy composition and processing for advanced high strength 7xxx alloys.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第13期1-9,19,共10页
Materials Reports
基金
中央高校基本科研基金(FRF-TD-12-001)
关键词
超高强铝合金
热处理
抗应力腐蚀
ultra-high strength aluminum alloy, heat treatment, stress-corrosion resistance
