高纯稀土对M50钢液析碳化物的影响

邓朝辉, 陈云, 巩桐兆, 徐闯, 陈星秋, 傅排先, 李殿中

Effect of Adding High Purity Rare Earth on Primary Carbide in M50 Steel

DENG Chaohui, CHEN Yun, GONG Tongzhao, XU Chuang, CHEN Xingqiu, FU Paixian, LI Dianzhong

表3 三支钢锭中的二次枝晶间距

Table 3 Statistics of secondary dendrite spacing in the three ingots

Secondary dendrite spacing / μm Average / μm M50 73.7 101.5 39.4 55.0 44.5 51.9 47.7 64.2 59.7 M50-Ce 52.4 39.3 41.4 40.1 - - - - 43.3 M50-RE 47.1 51.3 59.1 50.9 52.9 60.2 63.2 - 55.0