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4 NiCrMoV低碳合金钢在不同温度回火后的XRD谱及残余奥氏体体积分数

Fig.4 XRD spectra (a) and volume fraction of retained austenite (b) in the NiCrMoV low carbon alloyed steel tempered at different temperatures