Zn添加对预时效态Al-Mg-Si-Cu合金自然时效和烘烤硬化性的影响
朱上,李志辉,闫丽珍,李锡武,张永安,熊柏青

Effects of Zn Addition on the Natural Ageing Behavior and Bake Hardening Response of a Pre-Aged Al-Mg-Si-Cu Alloy
Shang ZHU,Zhihui LI,Lizhen YAN,Xiwu LI,Yongan ZHANG,Baiqing XIONG
表2 预时效态不含Zn和含Zn合金在自然时效和后续烘烤过程中的拉伸性能
Table 2 Tensile properties of the pre-aged Zn-free and Zn-added alloys during natural ageing and subsequent bake-hardening treatment

Treatment

Zn-free alloyZn-added alloy
YS / MPaUTS / MPaA50 / %YS / MPaUTS / MPaA50 / %
PA+NA 2 d12724424.513224925.2
PA+NA 120 d13925725.014526625.5
PA+NA 2 d+BH17928522.119429821.5
PA+NA 120 d+BH16427324.817327823.9