摘要
本文采用慢应变拉伸和三点弯曲试样研究分级时效对2091 Al-Li合金抗应力腐蚀性能的影响,并与单级时效工艺进行比较。试验结果表明,分级时效工艺在提高合金机械性能的同时,还能使合金抗应力腐蚀性能得到明显改善。对Al-Li合金应力腐蚀开裂机制进行了探讨。
Comparing with single-stage aging, influence of stepped aging process on stress corrosion resistance was studied in 2091 Al-Li alloy by using slow strain rate tension and three points bending speciments. Experimental results show that stepped aging process not only enhances mechanical properties but also improves resistance against stress corrosion of the alloy. Mechanism of stress corrosion in the Al-Li alloy was discussed in this paper.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1992年第2期27-33,共7页
Journal of Astronautics
关键词
分级时效
应力腐蚀
铝锂合金
Al-Li alloy, Step aging, Stress coorrosion.
