研究了反应溅射Al2O3膜对TiAl抗高温氧化性能的影响结果表明,在800和900℃,Al2O3膜大大提高TiAl的抗氧化性能在800℃氧化100h后,Al2O3膜及TiAl基体几乎未发生变化;在900℃氧化时,TiAl中Al优先氧化形成Al2O3,使Al2O3膜增厚,龟裂纹被弥合,仅有少量TiO2出现在大的裂纹处1000℃氧化时,原始Al2O3膜变得不连续,失去保护性
Effect of reactively-sputtered Al2O3 film on oxidation resistance of TiAl intermetallics was studied at 800~ 1000℃ in static air. The results showed that Al2O3 film improved the oxidation resistance of TiAl remarkably at 800 and 900℃. At 800℃, the Al2O3 f
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