高速列车车轴DZ2钢的强韧性关系和低温脆性

刘硕, 张鹏, 王斌, 汪开忠, 许自宽, 胡芳忠, 段启强, 张哲峰

Investigations on Strength-Toughness Relationship and Low Temperature Brittleness of High-speed Railway Axle Steel DZ2

LIU Shuo, ZHANG Peng, WANG Bin, WANG Kaizhong, XU Zikuan, HU Fangzhong, DUAN Qiqiang, ZHANG Zhefeng

图5 DZ2钢在不同温度回火后的拉伸性能和静力韧度统计结果

Fig.5 Tensile test results of DZ2 steel after tempering at different tempering temperatures (TT) (a) engineering stress-strain curve; (b) the statistical results of static toughness before UTS vary with the tempering temperature