| 标题 |
The oxidation behaviour of NiAl-I. Phase transformations in the alumina scale during oxidation of NiAl and NiAl-Cr alloys NiAl-I的氧化行为。NiAl和NiAl-Cr合金氧化过程中氧化铝膜的相转变
相关领域
尼亚尔
材料科学
氧化物
合金
相(物质)
动力学
冶金
化学工程
腐蚀
金属间化合物
化学
有机化学
工程类
物理
量子力学
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Abstract The oxide phases formed on NiAl and NiAl-Cr and their oxidation kinetics have been studied in the temperature range 973–1673 K using TGA, XRD, SEM and TEM. The oxidation rate depends on the oxide phase formed on the alloy. γ-Al2O3, θ-Al2O3, and α-Al2O3 have been observed and different κp values were correlated to their growth. Cr in NiAl accelerates the θ-α transformation and leads to a higher κp value. Cr2O3 formed in the initial stage of oxidation acts as nuclei for the formation of α-Al2O3. |
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(2025-6-4)