7055铝合金的非等温双级时效行为
李吉臣1, 冯迪1,2(
), 夏卫生2, 郭为民3(), 王国迎1
), 夏卫生2, 郭为民3(), 王国迎1
The Non-Isothermal Double Ageing Behaviour of 7055 Aluminum Alloy
LI Jichen1, FENG Di1,2(), XIA Weisheng2, GUO Weimin3(), WANG Guoying1
), XIA Weisheng2, GUO Weimin3(), WANG Guoying1
图7. 第一级时效以及升温时效过程中沉淀相的TEM像及其SAED谱 (3 ℃/min)
Fig.7. TEM images and SAED patterns (insets) of the first ageing state and the precipitates formed during the heating ageing process (3 ℃/min)
Color online
(a) the first stage of 105 ℃, 24 h (The inset at the lower left corner is the schematic of SAED pattern along <112>Al)
(b) heating the sample to 176 ℃ at 3 ℃/min and water cooling to room temperature (3/176/S)
(c) heating the sample to 207 ℃ at 3 ℃/min and water cooling to room temperature (3/207/S)
(d) heating the sample to 225 ℃ at 3 ℃/min and water cooling to room temperature (3/225/S)
