Abstract In order to study the effect of Cr and Y 2 O 3 addition on the oxidation behavior of novel Co-20Cr-10Al (wt.%) oxide dispersion strengthened (ODS) superalloys, an isothermal oxidation test was carried out at 900 °C in air. The addition of Cr altered the oxide scale from the multilayered scale with an external Co oxide/CoAl 2 O 4 and an inner Al 2 O 3 to a single Al 2 O 3 scale. Y 2 O 3 addition increased oxidation mass gain slightly but improved spallation resistance of the external Al 2 O 3 scale.

中文翻译：

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Cr和Y 2 O 3 对Co基氧化物弥散强化高温合金900℃氧化行为的影响

摘要 为了研究 Cr 和 Y 2 O 3 添加对新型 Co-20Cr-10Al (wt.%) 氧化物弥散强化 (ODS) 高温合金氧化行为的影响，在 900 °C 下进行了等温氧化试验。在空气中。Cr的添加将氧化皮从具有外部Co氧化物/CoAl 2 O 4 和内部Al 2 O 3 的多层氧化皮改变为单一Al 2 O 3 氧化皮。Y 2 O 3 添加略微增加了氧化质量增加，但提高了外部Al 2 O 3 氧化皮的抗散裂性。