深冷-时效复合处理对7075铝合金的显微组织和力学性能的影响

余聪, 陈乐平, 江鸿翔, 周全, 杨成刚

Effect of Deep Cryogenic-Aging Treatment on Microstructure and Mechanical Properties of 7075 Al-alloy

YU Cong, CHEN Leping, JIANG Hongxiang, ZHOU Quan, YANG Chenggang

图9 不同深冷时间的DCT-T6处理后合金中亚晶的形貌

Fig.9 Morphologies of sub-grains of 7075 aluminum alloy T6 treated with DCT-T6 at different cryogenic time (a) T6, (b) DCT3h-T6, (c) DCT4h-T6, (d) DCT6h-T6