贝氏体钢轨的低温疲劳裂纹扩展行为

刘蓉, 高古辉, 桂晓露, 白秉哲

Low-Temperature Fatigue Crack Propagation Behavior of Bainitic Rail Steel

LIU Rong, GAO Guhui, GUI Xiaolu, BAI Bingzhe

图4 贝氏体钢轨在室温和-40 ℃下的工程应力-应变曲线

Fig.4 Engineering stress-strain curves of bainitic rail steel at RT and -40 oC