回火温度对<strong>1000 MPa</strong>级<strong>NiCrMoV</strong>低碳合金钢微观组织和低温韧性的影响

回火温度对1000 MPa级NiCrMoV低碳合金钢微观组织和低温韧性的影响

周成, 赵坦, 叶其斌, 田勇, 王昭东, 高秀华

Effects of Tempering Temperature on Microstructure and Low-Temperature Toughness of 1000 MPa Grade NiCrMoV Low Carbon Alloyed Steel

ZHOU Cheng, ZHAO Tan, YE Qibin, TIAN Yong, WANG Zhaodong, GAO Xiuhua

图3 NiCrMoV低碳合金钢在不同温度回火后显微组织的TEM像

Fig.3 TEM images of the NiCrMoV low carbon alloyed steel tempered at 450^oC (a), 500^oC (b), 550^oC (c), 600^oC (d, e), and 650^oC (f) (Inset in Fig.3e shows the selected area election diffraction (SAED) pattern of retained austenite)