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

表1 高速列车车轴钢DZ2钢的化学成分

Table 1 Chemical composition of the high-speed railway axle steel DZ2 (mass fraction, %)

Element C Si Mn P S Cr Ni Mo V Al Cu Content 0.24~0.32 0.20~0.40 0.60~0.80 ≤ 0.010 ≤ 0.010 0.90~1.20 0.50~1.50 0.20~0.30 ≤ 0.06 0.010~0.040 ≤ 0.20