多相Ni3Al基高温合金微区氧化行为

胡敏, 周生玉, 国京元, 胡明昊, 李冲, 李会军, 王祖敏, 刘永长

Oxidation Behavior of Micro-Regions in Multiphase Ni3Al-Based Superalloys

HU Min, ZHOU Shengyu, GUO Jingyuan, HU Minghao, LI Chong, LI Huijun, WANG Zumin, LIU Yongchang

表1 Ni3Al基高温合金不同区域化学成分的EDS分析 (atomic fraction / %)

Table 1 EDS results of chemical compositions of different regions in Ni3Al-based superalloy

Position in Fig.1b Al Fe Cr Ni 1 (γ' + γ dendrite) 8.5 18.6 12.4 60.5 2 (interdendritic β phase) 27.2 8.9 1.5 62.4 3 (γ' envelope) 19.4 6.6 2.2 71.8