Nb对中碳钢相变和组织细化的影响*

吴斯, 李秀程, 张娟, 尚成嘉

EFFECT OF Nb ON TRANSFORMATION AND MICROSTRUCTURE REFINEMENT IN MEDIUM CARBON STEEL

WU Si, LI Xiucheng, ZHANG Juan, SHANG Chengjia

表1 实验中碳钢的化学成分

Table 1 Chemical compositions of medium carbon steel

Steel C Si Mn S P Cr Nb Fe A 0.47 0.42 0.78 0.0082 0.015 0.22 - Bal. B 0.47 0.42 0.81 0.0089 0.013 0.24 0.06 Bal.