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2 中断扩孔实验取样位置及观察面

Fig.2 Schematics of the observation positions for punching hole sample (a) and milling hole sample (b), with the red area indicating the observation surface in interrupted hole expansion test (ND—normal direction, RD—rolling direction, TD—transverse direction)