稀土Ce对非调质钢中硫化物特征及微观组织的影响

刘洁, 徐乐, 史超, 杨少朋, 何肖飞, 王毛球, 时捷

Effect of Rare Earth Ce on Sulfide Characteristics and Microstructure in Non-Quenched and Tempered Steel

LIU Jie, XU Le, SHI Chao, YANG Shaopeng, HE Xiaofei, WANG Maoqiu, SHI Jie

表1 实验用钢的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the test steels

Steel C Si Mn P Alt S V Ti Ce Fe R0 0.37 0.48 1.35 0.0060 0.005 0.059 < 0.005 0.063 - Bal. R1 0.38 0.46 1.36 0.0042 < 0.005 0.051 < 0.005 0.059 0.010 Bal. R2 0.38 0.43 1.40 0.0050 < 0.005 0.063 < 0.005 0.059 0.019 Bal. R3 0.38 0.47 1.39 0.0045 < 0.005 0.064 < 0.005 0.058 0.027 Bal.