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1 不含Zn和含Zn的Al-Mg-Si-Cu合金的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the Zn-free and Zn-added Al-Mg-Si-Cu alloys (mass fraction / %)

Alloy Mg Si Zn Cu Mn Zr Fe Al Zn-free 0.90 0.82 0.006 0.23 0.11 0.09 <0.1 Bal. Zn-added 0.92 0.78 0.640 0.23 0.10 0.12 <0.1 Bal.