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3 热轧显微组织的OM像、SEM-SE像及EBSD像
Fig.3 Microstructure characteristics of the hot-rolled base steel (a-d) and advanced steel (e-h) (F—ferrite, B—bainite, MA—martensite-austenite constituent, GB—grain boundary)
(a, e) OM images (b, c, f, g) SEM-SE images (d, h) EBSD images