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10 250℃回火态50CrMnMoVNb钢的冲击裂纹扩展路径

Fig.10 Impact crack propagation path of 50CrMnMo-VNb steel tempered at 250℃