Study by deflection of the oxygen pressure influence on the phase transformation in alumina thin films formed by oxidation of Fe3Al

被引:21
作者
Huntz, A. M. [1 ]
Hou, P. Y.
Molins, R.
机构
[1] Univ Paris 11, LEMHE, ICMMO, Ctr Orsay,CNRS,UMR 8182, F-91405 Orsay, France
[2] Lawrence Berkeley Natl Lab, Berkeley, CA 94530 USA
[3] Mines Paris, Ctr Mat, CNRS, UMR 7633, F-91003 Evry, France
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 467卷 / 1-2期
关键词
alumina films; alpha alumina; transition aluminas; deflection tests; Fe3Al;
D O I
10.1016/j.msea.2007.02.089
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The influence of oxygen pressure on the stability of transition aluminas formed by the oxidation of an Fe3Al intermetallic alloy was studied by means of deflection tests, a technique based on the curvature of an asymmetrical sample consisting of a thin and elongated metallic substrate covered on one face by a protective oxide film. Three different atmospheres were chosen: air, argon and Ar-H-2-H2O mixture in order to obtain three different oxygen pressures and different water vapour contents. The deflection results were analysed on the basis of knowledge obtained from kinetics and TEM and SEM microstructural observations. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:59 / 70
页数:12
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