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10 合金中亚晶粒结构的形成

Fig.10 Formation of the sub-grain structure in alloy (a) T6-initial-dislocation; (b) DCT3h-T6-dislocation pile-up; (c) DCT4h-T6-sub-grain