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

图5 基准钢和实验用钢在预损伤和无损伤下完成扩孔后孔缘形貌的OM和SEM-SE像

Fig.5 Edge morphologies in base steel (a, a1, c, c1) and advanced steel (b, b1, d, d1) after the hole expansion test under pre-damage conditions with OM images (a, a1, b, b1) and un-damage conditions with SEM-SE images (c, c1, d, d1) (Figs.5a1-d1 are corresponding locally enlarged images of Figs.5a-d)