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

表1 ECAP态和ECAP后时效态合金的XRD分析

Table 1 XRD analyses of the ECAPed and post-aged alloy

State DXRD <ε2>1/2 ρ nm % 1014 m-2 ECAP at RT 210 0.16 9.19 ECAP + 80oC, 20 min 211 0.15 9.05 ECAP + 80oC, 180 min 488 0.11 2.78 ECAP + 110oC, 10 min 257 0.14 6.81 ECAP + 170oC, 5 min 395 0.14 5.12 ECAP + 170oC, 180 min 770 0.08 1.27