γ-TiAl合金在700 ℃空气中的长时高温氧化行为和组织演变
周志春, 刘仁慈, 张建达, 杨超, 崔玉友, 杨锐

Long-Term Oxidation Behavior and Microstructural Evolution of γ-TiAl Alloys at 700 oC in Air
ZHOU Zhichun, LIU Renci, ZHANG Jianda, YANG Chao, CUI Yuyou, YANG Rui
图4 45XD和4822合金样品氧化不同时间后的表面形貌
Fig.4 Surface morphologies of 45XD (a, b) and 4822 (c, d) alloy specimens after oxidation at 700 oC in air for 200 h (a, c) and 500 h (b, d)