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10 利用DICTRA模拟NiCrMoV低碳合金钢在两相区回火过程中合金元素配分过程

Fig.10 Alloying element partitioning process of the NiCrMoV low carbon alloyed steel in two-phase region tempering by DICTRA simulation
(a) dimensional model of partitioning process
(b) evolution of reversed austenite volume fraction (NPLE—negligible partition local equilibrium, PLE—partition local equilibrium)
(c) C distribution
(d) Ni distribution
(e) Mn distribution