氮对钒微合金钢粗晶热影响区(CGHAZ)的组织和性能的影响

柴锋,师仲然,杨才福,王佳骥

Effect of Nitrogen on Microstructure and Mechanical Properties for Simulated CGHAZ of Normalized Vanadium Micro-alloyed Steel

Feng CHAI,Zhongran SHI,Caifu YANG,Jiaji WANG

表2 试验钢模拟CGHAZ析出粒子的定量统计

Table 2 Results of the precipitations quantification

Steels Type d / nm Volume fraction/% V/(V+Ti)/% 31N Ti(C,N) 51.6±24.1 0.007 21.4 82N (Ti ,V)(C,N) 28.2±10.3 0.022 22.7 120N (Ti,V)(C,N) 28.1±9.7 0.114 30.4 210N (Ti,V)(C,N) 33.9±9.0 0.124 44.7