Ti微合金化调控35MnB钢中第二相和强韧性的机制

黄宏鑫, 廖兵, 郝露菡, 秦书洋, 胡小强, 郑雷刚, 时伟伟, 蔡常青

Mechanism of Ti Microalloying on Regulating the Second Phase and Strength-toughness in 35MnB Steel

HUANG Hongxin, LIAO Bing, HAO Luhan, QIN Shuyang, HU Xiaoqiang, ZHENG Leigang, SHI Weiwei, CAI Changqing

表1 实验用钢的化学成分

Table 1 Chemical composition of experimental steels (mass fraction, %)

Steel C Si Mn Cr B Al S N Ti Fe 0Ti 0.31 0.25 1.19 0.30 0.0013 0.008 0.002 0.0017 0 Bal. 300Ti 0.31 0.24 1.18 0.29 0.0020 0.006 0.001 0.0026 0.028 Bal. 450Ti 0.31 0.24 1.19 0.29 0.0025 0.007 0.002 0.0025 0.045 Bal. 600Ti 0.30 0.25 1.19 0.29 0.0019 0.007 0.001 0.0025 0.063 Bal.