Abstract Element Cr imparts non-crystallinity effect on the oxide film on iron. Therefore, in contrast with the oxidation of iron, the oxidation process of Fe-Cr alloys is more complicated. By means of high angle annular dark field scanning transmission electron microscopic (HAADF-STEM) imaging combined with electron-energy loss spectroscopy (EELS) and super-X electron dispersed spectroscopy (Super-X EDS) techniques in an aberration-corrected TEM, we have clarified the evolution in the oxide film formed on an FeCr15Ni15 alloy. The oxide film is identified to be amorphous at the initial oxidation stage, but tends to become crystalline in the inner layer after aging in air.

中文翻译：

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TEM准原位观察FeCr 15 Ni 15奥氏体合金上原生氧化膜的生长

摘要 Cr 元素对铁表面的氧化膜产生非结晶性影响。因此，与铁的氧化相比，Fe-Cr合金的氧化过程更为复杂。通过高角度环形暗场扫描透射电子显微镜（HAADF-STEM）成像结合电子能量损失光谱（EELS）和超X电子色散光谱（Super-X EDS）技术在像差校正的TEM中，我们阐明了在 FeCr15Ni15 合金上形成的氧化膜的演变。氧化膜在初始氧化阶段被确定为非晶态，但在内层中在空气中老化后趋于结晶。