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ＮｉＣｏＣｒＡｌＹＨｆ涂层在１１５０℃氧化试验中表现出优良的的抗氧化性能。研究表明，Ｈｆ的氧化物不均匀地分布于Ａｌ２Ｏ３氧化膜中，Ｈｆ元素的存在提高了涂层保护性氧化膜的稳定性，对提高涂层抗氧化性能起重要作用。
The NiCoCrAlYHf coating showed excellent oxidation resistance at 1150 ℃. The results show that the oxides of Hf are non-uniformly distributed in the Al2O3 oxide film. The presence of Hf improves the stability of the protective oxide film and plays an important role in improving the oxidation resistance of the coating.