The initial oxidation behavior of Fe–24Cr–10Al (in at%) alloys with and without 0.006Zr or 0.06Zr during heating followed by isothermal oxidation for up to 30 min at 1000 °C was investigated by in situ high-temperature X-ray diffraction using synchrotron radiation and by STEM–EDS analysis. No apparent effect of Zr on the oxidation behavior, including the oxidation mass gain and scale microstructure, was observed during heating to approximately 1000 °C. The effect of Zr addition on the microstructure of oxide scale was first observed after formation of α-Al 2 O 3 scale and inward growth of the inner Al 2 O 3 layer. The effect of Zr was found to appear after Zr incorporation into the inner Al 2 O 3 scale during its inward growth.

中文翻译：

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Zr对FeCrAl合金初始氧化行为的影响

Fe-24Cr-10Al（以原子百分比计）合金在加热和加热过程中的初始氧化行为，然后在 1000°C 下等温氧化长达 30 分钟，通过原位高温 X 射线研究使用同步辐射和 STEM-EDS 分析的衍射。在加热到大约 1000 °C 期间，没有观察到 Zr 对氧化行为的明显影响，包括氧化质量增加和氧化皮微观结构。在α-Al 2 O 3 氧化皮形成和内部Al 2 O 3 层向内生长后，首先观察到Zr添加对氧化皮微观结构的影响。发现 Zr 的影响在其向内生长过程中 Zr 掺入内部 Al 2 O 3 鳞片后出现。