7055铝合金的非等温双级时效行为

李吉臣, 冯迪, 夏卫生, 郭为民, 王国迎

The Non-Isothermal Double Ageing Behaviour of 7055 Aluminum Alloy

LI Jichen, FENG Di, XIA Weisheng, GUO Weimin, WANG Guoying

表1 不同时效状态下7055铝合金的性能

Table 1 Properties of 7055 aluminum alloy under different ageing states

Ageing state Rm / MPa Rp0.2 / MPa A / % Electrical conductivity / (MS·m-1) 1/215/L 607.7 580.6 11.4 22.1 3/225/L 610.0 578.8 12.7 22.2 RRA 617.5 585.8 12.1 22.1 T73 557.0 513.0 11.7 23.1 T6 651.6 583.3 10.8 16.6