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2 样品纵截面氧化产物的EPMA化学成分分析 (atomic fraction / %)

Table 2 Chemical compositions of oxidation products in Figs.5c and d in longitudinal section analyzed by EPMA

Oxidation product Label N O Ni Al Cr Co Ta W Mo Re (Ni, Co)(W, Mo)O4 A - 66.65 14.24 0.62 1.07 2.71 2.52 10.45 1.70 66.65 NiO B - 47.98 46.81 0.53 0.45 4.14 - - - - (Ni, Co)(Al, Cr)2O4 C - 57.75 12.02 24.27 1.85 3.23 0.80 - - - Re-rich D - 45.68 - 4.56 1.13 - - 4.24 6.68 37.55 Al2O3 E1 - 61.77 2.25 34.37 0.82 0.66 - - - - Al2O3 E2 - 71.27 - 27.82 - - - - - - AlN F 33.63 - 28.00 48.14 0.99 1.73 - 0.42 - -