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

图3 不同状态下两种弹簧钢的金相组织

Fig.3 Metallographic microstructures of the two spring steels under different conditions (a, b) hot-rolling condition; (c, d) tempered at 150℃; (e, f) tempered at 250℃; (g, h) tempered at 350℃; (i, j) tempered at 450℃