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

图1 Ni3Al基高温合金热处理后显微组织的SEM像

Fig.1 SEM image of the Ni3Al-based superalloy after heat treatment, showing γ' + γ dendrite, interdendritic β phase, and γ' envelope (a); a higher magnification SEM image of interdendritic β phase and γ' envelope (b); a higher magnification SEM image of γ' + γ dendrite, showing cubic γ' precipitates separated by γ channels (c)