Mn偏析对0.3C-11Mn-2.7Al-1.8Si-Fe中锰钢力学性能的影响及作用机制

蔡星周, 刘胜杰, 张禹森, 李小龙, 张宇鹤, 张文彬, 陈雷, 金淼

Effect of Mn Segregation on Mechanical Properties of 0.3C-11Mn-2.7Al-1.8Si-Fe Medium Mn Steel and Its Mechanism

CAI Xingzhou, LIU Shengjie, ZHANG Yusen, LI Xiaolong, ZHANG Yuhe, ZHANG Wenbin, CHEN Lei, JIN Miao

图3 锻坯心部(S1)与近表层区域(S2)样品加工硬化曲线与真应力-应变曲线

Fig.3 Work-hardening rate curves and true stress-strain curves of the center (S1 represents sample with segregation band) and surface (S2 represents sample without segregation band) samples (εs—critical strain of martensitic transformation)