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4 4种合金[8,9,20,21]的参考合金成分 (mass fraction / %)

Table 4 Chemical compositions of the four alloys[8,9,20,21]

Alloy Al Ta Cr Co Mo W Re Y C Ni 1[20] 6.0 4.0 4.5 9.0 1.8 8.5 4.0 0.003 0.15 Bal. 2[8] 6.3 * 6 * 10 * * * * 3[9] 5.7 6.7 5.3 9.0 0 8.0 2.0 0 0 Bal. 4[21] 7.1 3 2.2 0 7 0 1 0.05 0 Bal.