冷速对高碳铬轴承钢液析碳化物凝固析出机制的影响

李闪闪, 陈云, 巩桐兆, 陈星秋, 傅排先, 李殿中

Effect of Cooling Rate on the Precipitation Mechanism of Primary Carbide During Solidification in High Carbon-Chromium Bearing Steel

LI Shanshan, CHEN Yun, GONG Tongzhao, CHEN Xingqiu, FU Paixian, LI Dianzhong

表1 未添加稀土元素的GCr15SiMn钢和添加稀土元素的GCr15SiMn(RE)钢的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the steels without RE (GCr15SiMn) and with RE (GCr15SiMn(RE))

Steel C Cr Si Mn Mo P S Ni Cu La Ce Fe GCr15SiMn 0.99 1.55 0.48 0.99 < 0.05 0.013 0.001 0.06 < 0.05 - - Bal. GCr15SiMn(RE) 0.99 1.55 0.50 0.98 < 0.05 0.013 0.001 0.08 < 0.05 0.0005 0.001 Bal.