高温回火对低碳中锰钢微观组织和力学性能的影响
展之德, 刘琪琪, 董敬文, 祁震, 罗小兵, 柴锋, 师仲然

Effect of Tempering Temperatures on Microstructure and Mechanical Property of a Test Low-carbon Medium-manganese Steel
ZHAN Zhide, LIU Qiqi, DONG Jingwen, QI Zhen, LUO Xiaobing, CHAI Feng, SHI Zhongran
图7 在不同温度回火的4Mn钢在-60 ℃的冲击断口形貌
Fig.7 Morphologies of the impact fracture of 4Mn steel at -60 oC (a, d) 600 oC, (b, e) 640 oC, (c, f) 670 oC