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1 实验用钢的化学成分

Table 1 Chemical composition of the tested steel (mass fraction, %)

Steels C Mn Si S P Ti N Al V 31N 0.16 1.56 0.35 0.003 0.006 0.015 0.0031 0.012 0.060 82N 0.16 1.58 0.33 0.003 0.006 0.015 0.0082 0.015 0.062 120N 0.16 1.53 0.36 0.003 0.006 0.015 0.0120 0.014 0.060 210N 0.16 1.55 0.35 0.003 0.006 0.016 0.0210 0.013 0.059