Temperature dependence of metastable alumina formation during thermal oxidation of FeCrAl foils

被引：62

作者：

Berthomé, G ^{[1
]}

N'Dah, E ^{[1
]}

Wouters, Y ^{[1
]}

Galerie, A ^{[1
]}

机构：

[1] Inst Natl Polytech Grenoble, CNRS, INPG, UMR 5614,Lab Thermodynam & Phys Chim Met, F-38402 St Martin Dheres, France

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2005年 / 56卷 / 06期

关键词：

D O I：

10.1002/maco.200403851

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Industrial FeCrAl foils were isothermally oxidized during 5 hours between 850 and 1000 degrees C in atmosphere of pure oxygen. Characterization of transition and a-alumina phases was performed by XRD and XPS, using reference spectra obtained by various air annealing treatments of pure gamma-Al2O3. An original model was proposed to deconvolute XPS spectra to obtain quantification of transition alumina formation and transformation. At 850 degrees C, oxide scales on FeCrAl consisted of transition alumina, whereas higher temperature treatments resulted in decreased amounts of transition aluminas and in increasing a-alumina formation. At 1000 degrees C, the highest temperature studied, the scale could be described by XPS and XRD as pure alpha.

引用

页码：389 / 392

页数：4

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