软化退火对冷轧中锰钢再结晶和相变的影响

郑沁园, 郑成武, 路轶, 朱海龙, 刘朋, 栾义坤, 李殿中

Effect of Softening Annealing on Recrystallization and Austenite Transformation of a Cold-rolled Medium-Mn Steel

ZHENG Qinyuan, ZHENG Chengwu, LU Yi, ZHU Hailong, LIU Peng, LUAN Yikun, LI Dianzhong

图5 SA450试样以不同速率升温时的膨胀曲线

Fig.5 Dilatation curves of SA450 samples during heating with different heating rates (a) dilatation curves, (b) the first derivatives of dilatation curves (ΔL—change in sample length, L0—initial sample length)