一种低成本第三代单晶高温合金的高温氧化行为

李永梅, 谭子昊, 王新广, 陶稀鹏, 杨彦红, 刘纪德, 刘金来, 李金国, 周亦胄, 孙晓峰

Oxidation Behavior of a Low-Cost Third-Generation Ni-Based Single-Crystal Superalloy

LI Yongmei, TAN Zihao, WANG Xinguang, TAO Xipeng, YANG Yanhong, LIU Jide, LIU Jinlai, LI Jinguo, ZHOU Yizhou, SUN Xiaofeng

表1 样品表面氧化产物的EPMA化学成分分析 (atomic fraction / %)

Table 1 Chemical compositions of surface oxidation products analyzed by EPMA

Oxidation product O Ni Al Cr Co Ta W Mo NiO 59.26 37.64 - - 3.10 - - - Spinel A1 52.80 17.15 20.84 5.27 3.94 - - - Spinel A2 60.16 8.09 14.68 11.92 5.99 - - - (Ni, Co)(W, Mo)O4 65.50 15.40 - 1.73 1.25 1.00 15.11 - Spinel B 72.00 14.20 0.80 2.85 2.89 72.00 - -