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3 国内外超细晶纳米晶6000系时效铝合金的强韧性对比[10,13,27,34~42]

Table 3 Comprehensive comparisons of tensile properties of 6000 series Al alloys[10,13,27,34-42]

State/treatment σ0.2 / MPa UTS / MPa Ef / % Ref. 6061 ECAP at RT + post-aging 483 514 15.1 This work Al-Mg-Si-Cu rolling+aging 452 487 10.0 [10] 6061 ECAP at RT + post-aging 411 450 17.8 [13] 6061 under-aging + coldrolling + re-aging 542 560 8.5 [27] 6061 HPT at RT 605 705 6.3 [34] 6061 Friction stir processing 435 505 2.1 [35] AA6060 HPT at RT 475 525 6.0 [36] 6061 HPT at RT 660 690 5.5 [37] 6061 HPT at RT + post-aging 455 485 15.0 [38] 6061 multi directional forging + aging 409 472 8.9 [39] 6101 hydrostatic extrusion + aging 345 354 5.5 [40] 6061 accumulative roll bonding + aging 450 - 6.5 [41] Al-Mg-Si-Cu pre-deformation + aging 435 450 7.1 [42]