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Third element effect in the surface zone of Fe-Cr-Al alloys
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2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 81, no 3, 033105- p.Article in journal (Refereed) Published
Abstract [en]

The third element effect to improve the high temperature corrosion resistance of the low-Al Fe-Cr-Al alloys is suggested to involve a mechanism that boosts the recovering of the Al concentration to the required level in the Al-depleted zone beneath the oxide layer. We propose that the key factor in this mechanism is the coexistent Cr depletion that helps to maintain a sufficient Al content in the depleted zone. Several previous experiments related to our study support that conditions for such a mechanism to be functional prevail in real oxidation processes of Fe-Cr-Al alloys.

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2010. Vol. 81, no 3, 033105- p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-137395DOI: 10.1103/PhysRevB.81.033105ISI: 000274002300005OAI: oai:DiVA.org:uu-137395DiVA: diva2:378800
Available from: 2010-12-16 Created: 2010-12-15 Last updated: 2012-03-30Bibliographically approved

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Johansson, BörjeVitos, Levente

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