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8 在不同温度回火的两种弹簧钢冲击断口的SEM形貌

Fig.8 Impact microscopic fractographies of the two spring steels tempered at different temperatures (a, b) 250℃; (c, d) 350℃; (e, f) 400℃; (g, h) 500℃