后时效对超细晶<strong>6061</strong>铝合金微观结构与力学性能的影响

后时效对超细晶6061铝合金微观结构与力学性能的影响

刘满平, 薛周磊, 彭振, 陈昱林, 丁立鹏, 贾志宏

Effect of Post-Aging on Microstructure and Mechanical Properties of an Ultrafine-Grained 6061 Aluminum Alloy

LIU Manping, XUE Zhoulei, PENG Zhen, CHEN Yulin, DING Lipeng, JIA Zhihong

图2 不同状态6061铝合金的力学性能

Fig.2 Mechanical properties of 6061 aluminum alloy after ECAPed and post-aged states
(a) hardness curves of ECAP + post-aged at 80, 110, and 170^oC specimens
(b) engineering stress-strain curves of the ECAPed and post-aged specimens
(c) normalized work hardening rates against true strain