V和Si对珠光体车轮钢显微组织和力学性能的影响规律*

左越, 周世同, 李昭东, 潘涛, 项金钟, 雍岐龙

Effect of V and Si on Microstructure and Mechanical Properties of Medium-carbon Pearlitic Steels for Wheel

ZUO Yue, ZHOU Shitong, LI Zhaodong, PAN Tao, XIANG Jinzhong, YONG Qilong

表3 实验钢的室温拉伸性能和-20℃冲击性能

Table 3 Tensile and impact properties of experimental steels, respectively at room temperature and -20℃

No. Yield strength / MPa Tensile strength / MPa Total elongation / % KV2 /J (-20℃) 1# 511 914 19.0 10 2# 531 907 21.0 14 3# 561 892 21.0 16 4# 485 813 22.0 14