稀土Ce对X20Co马氏体耐热钢蠕变性能的影响
向钰琳1,2, 杨仁贤3,4, 蔡欣3, 胡小强3,4(
), 李殿中3,4()
), 李殿中3,4()
Effect of Ce Addition on Creep Properties of X20Co Martensitic Heat-resistant Steel
XIANG Yulin1,2, YANG Renxian3,4, CAI Xin3, HU Xiaoqiang3,4(), LI Dianzhong3,4()
), LI Dianzhong3,4()
图3. 在200 MPa、不同温度条件下三种不同Ce元素含量X20Co的蠕变应变曲线和蠕变速率曲线
Fig.3. Creep strain versus creep time curves (a, b) and the creep rate versus creep time curves (c, d) of three studied X20Co steels crept at 680oC (a, c) and 720oC (b, d) under the stress of 200 MPa
