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Relation between composition, microstructure and oxidation in iron aluminides

Martinez, Mayerling and Viguier, Bernard and Maugis, Philippe and Lacaze, Jacques Relation between composition, microstructure and oxidation in iron aluminides. (2006) Intermetallics, vol. 1 (n° 10-). pp. 1214-1220. ISSN 0966-9795

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Official URL: http://dx.doi.org/10.1016/j.intermet.2005.11.018

Abstract

The relation between chemical composition, microstructure and oxidation properties has been investigated on various FeAl based alloys, the aim being to induce changes in the microstructure of the compound by selective oxidation of aluminium. Oxidation kinetics that was evaluated on bulk specimens showed that, due to fast diffusion in the alloys, no composition gradient is formed during the aluminium selective oxidation. Accordingly, significant aluminium depletion in the compound could be observed in the thinnest part of oxidised wedge-shape specimens. Another way to obtain samples of variable aluminium content was to prepare diffusion couples with one aluminide and pure iron as end members. These latter specimens have been characterised using electron microscopy and first results of oxidation experiments are presented.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Intermetallics website : http://www.sciencedirect.com/science/journal/09669795
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:Thomas Bonnecarere

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