稀土元素对中碳钢组织、力学性能和渗氮的影响

桂伟民, 刘义, 张晓田, 何亮亮, 王晔, 王元栋, 贺尔康, 王梦梦

Effect of Rare Earth Addition on Microstructure, Mechanical Property and Nitriding Performance of a Medium Carbon Steel

GUI Weimin, LIU Yi, ZHANG Xiaotian, HE Liangliang, WANG Ye, WANG Yuandong, HE Erkang, WANG Mengmeng

表1 实验用钢的主要化学成分(%，质量分数)

Table1 Chemical compositions of the test steels (%， mass fraction)

Sample C Si Mn P S Cr Ni Mo RE 0RE 0.39 0.25 0.76 0.005 0.007 1.07 0.095 0.18 - 0.03RE 0.39 0.26 0.77 0.003 0.006 1.05 0.096 0.18 0.03