微量Ce元素对高铬高钴型马氏体耐热钢力学性能的影响

王琨, 杨仁贤, 蔡欣, 郑雷刚, 胡小强, 李殿中

Effects of Trace Ce on Mechanical Properties of a Ferritic/Martensitic Heat Resistant Steel Containing High Cr and Co

WANG Kun, YANG Renxian, Cai Xin, ZHENG Leigang, HU Xiaoqiang, LI Dianzhong

图1 X20Co和X20CoRE耐热钢在不同温度淬火后的组织

Fig.1 SEM morphology of X20Co (a, c, e) and X20CoRE (b, d, f) heat resistant steels quenched at 1050℃ (a, b), 1130℃ (c,d) and 1200℃ (e, f). (The EDS spectra in Fig.1 a and b showing that the precipitates in the studied steels are rich in W and Mo)