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6 NiCrMoV低碳合金钢在DQ态和不同温度回火状态下的拉伸性能

Fig.6 Tensile properties of the NiCrMoV low carbon alloyed steel under DQ and tempered at different temperatures (a) tensile stress-strain curves (b) work hardening curves (c) strength (YS—yield strength, UTS—ultimate tensile strength) (d) yield to tensile ratio (e) total elongation