回火温度对2.25Cr-1Mo-0.25V钢粒状贝氏体显微组织和力学性能的影响*
蒋中华,王培(
),李殿中,李依依
),李殿中,李依依
EFFECTS OF TEMPERING TEMPERATURE ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF GRANULAR BAINITE IN 2.25Cr-1Mo-0.25V STEEL
Zhonghua JIANG,Pei WANG(),Dianzhong LI,Yiyi LI
),Dianzhong LI,Yiyi LI
图9. 不同温度回火后2.25Cr-1Mo-0.25V钢在-18 ℃低温冲击断口形貌
Fig.9. Fracture surface morphologies of 2.25Cr-1Mo-0.25V steel tempered at 500 ℃ (a), 630 ℃ (b), 680 ℃ (c), 700 ℃ (d), 720 ℃ (e) and 750 ℃ (f) after Charpy impact test at -18 ℃ (Arrows in Fig.9b indicate ductile fracture bands and inset in Fig.9d indicates a region of dimples)
