稀土CeX20Co马氏体耐热钢蠕变性能的影响
向钰琳, 杨仁贤, 蔡欣, 胡小强, 李殿中

Effect of Ce Addition on Creep Properties of X20Co Martensitic Heat-resistant Steel
XIANG Yulin, YANG Renxian, CAI Xin, HU Xiaoqiang, LI Dianzhong
表1 X20Co耐热钢的化学成分
Table 1 Chemical composition of the experimental X20Co heat-resistant steels (mass fraction, %)
SteelCSiMnCrCoMoWVNbCeFe
0Ce0.210.250.319.919.793.065.910.220.070Bal.
5Ce0.260.210.229.8810.063.065.930.220.070.005Bal.
12Ce0.220.250.319.999.953.095.890.230.070.012Bal.