回火温度对高强弹簧钢微观组织和冲击性能的影响

夏博, 王斌, 张鹏, 李小武, 张哲峰

Effect of Tempering Temperature on Microstructure and Impact Properties of Two High-strength Leaf Spring Steels

XIA Bo, WANG Bin, ZHANG Peng, LI Xiaowu, ZHANG Zhefeng

表1 两种弹簧钢的化学成分

Table 1 Chemical composition of the two leaf spring steels (mass fraction, %)

Materials C Si Mn Cr Mo V Nb Fe 50CrMnMoVNb 0.5 0.15 0.86 1.06 0.17 0.05 0.030 Bal. 50CrMnSiVNb 0.5 0.86 0.90 0.99 ˂0.02 0.11 0.027 Bal.