马氏体-奥氏体组元特征分布对复相钢扩孔行为的影响

杨晓宇, 米振莉, 方幸, 刘航瑞, 牟望重

Achieving an Excellent Hole Expansion Behavior in Complex Phase Steels by Characteristic Distribution of Martensite-Austenite Constituents

YANG Xiaoyu, MI Zhenli, FANG Xing, LIU Hangrui, MU Wangzhong

表1 基准钢和实验用钢的主要化学成分 (mass fraction / %)

Table 1 Chemical compositions of base steel and advanced steel

Type C Si Mn P S Ti Als Cr N Fe Base steel 0.06 0.05 1.70 0.010 0.0028 0.12 0.039 0.36 0.0054 Bal. Advanced steel 0.05 0.25 1.60 0.017 0.0045 0.13 0.027 0.40 0.0023 Bal.