Six {Ni,Co}-based alloys containing TaC were oxidised at 1250°C. The mass variations files were exploited to follow the progress of the spallation of the oxide scales during cooling. The oxides formed on surface were characterised. On average, spallation started after a 300 K cooling, at higher temperature for the nickel-richest alloys than for the others. These results are discussed by considering the effect of the base element and the natures and thicknesses of the external oxides. Tantalum has a negative influence on the scales adherence. The thicker scales formed on the cobalt-richest alloys are less affected by spallation. The CrTaO4 oxide is more deleterious for the adherence of the external oxide scale when it is gathered at the interface.

中文翻译：

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铸造氧化铬形成的 TaC 强化高温合金的氧化皮剥落行为

六种含 TaC 的 {Ni,Co} 基合金在 1250°C 下氧化。质量变化文件被用来跟踪冷却过程中氧化皮剥落的进程。对表面形成的氧化物进行表征。平均而言，在 300 K 冷却后开始散裂，最富镍合金的温度高于其他合金。通过考虑基本元素的影响以及外部氧化物的性质和厚度来讨论这些结果。钽对鳞片粘附有负面影响。在钴含量最高的合金上形成的较厚的鳞片受散裂的影响较小。CrTaO4 氧化物在界面处聚集时，对外部氧化皮的附着危害更大。