Impurity distribution in Al2O3 formed on an FeCrAl alloy

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2004 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 50, pages 45-49 (issn: 1359-6462,

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Authors: P.Y. Hou; X.F. Zhang; R.M. Cannon;

doi: 10.1016/j.scriptamat.2003.09.044

Impurity distribution in Al2O3 formed on an FeCrAl alloy

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Abstract

Abstract Analytical electron microscopy and Auger spectroscopy were used to study the amount and distribution of Fe, Cr and S impurities in the Al2O3 scale grown on an FeCrAl alloy. Segregations of Fe on grain boundaries and S on internal void surfaces were found, and a mechanism of intragranular void formation in Al2O3 is proposed.

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Lawrence Berkeley National Laboratory
United States

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