预变形对汽车用Al-Mg-Si-Cu合金析出行为的影响

崔莉, 郭明星, 彭祥阳, 张艳, 张济山, 庄林忠

INFLUENCE OF PRE-DEFORMATION ON THE PRECIP- ITATION BEHAVIORS OF Al-Mg-Si-Cu ALLOY FOR AUTOMOTIVE APPLICATION

CUI Li, GUO Mingxing, PENG Xiangyang, ZHANG Yan, ZHANG Jishan, ZHUANG Linzhong

Peak of GP and β ″ Q (kJmol-1) k0 min-1 Kinetics expression GP zone dissolution for the (T4P+BH) 128.0 2.9×1013 Y=1-exp[-2.9×1013exp(-15401/T)t] GP zone dissolution for the (T4P+5%+BH) 133.8 1.4×1014 Y=1-exp[-(1.4×1014exp(-16103/T)t)1.5] GP zone dissolution for the (T4P+15%+BH) 97.0 2.2×1010 Y=1-exp[-(2.2×1010exp(-11664/T)t)1.8] β ″ precipitation for the (T4P+BH) 176.9 5.2×1017 Y=1-exp[-(5.2×1017exp(-21285/T)t)2] β ″ precipitation for the (T4P+5%+BH) 164.9 3.5×1016 Y=1-exp[-(3.5×1016exp(-19842/T)t)2] β ″ precipitation for the (T4P+15%+BH) 127.1 5.3×1012 Y=1-exp[-(5.3×1012exp(-15321/T)t)2]