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Abstract

The oxidation behaviour of the ODS alloy Cr5Fe1Y(2)O(3) prepared by 2 different manufacturing techniques was studied in Air and Ar/H(2)/H(2)O at 1000 C. TEM studies revealed that the oxidation rate of the Cr-based ODS material depends on the yttria content, but even more on its distribution. Transport of Y from the alloy to the scale occurs through dispersions which become embedded in the inward growing scale and/or by transport of Y along structural defects in the alloy. Because of the low rate of Y-incorporation in the scale, the alloys exhibit high initial oxidation rates. Enrichment of the alloy surface by Y implantation markedly improved the early stages of the oxidation process.

Additional information

Authors: QUADAKKERS W J ET AL, Forschungszentrum Jülich GmbH (KFA), Institute for Materials in Energy Systems (DE);TYAGI A, IGCAR, Kalpakkam (IN);GIL A, University of Mining and Metallurgy, Krakow (PL);STROONSNIJDER M F, JRC Ispra (IT)
Bibliographic Reference: Article: Entwicklung und Anwendung massenspektrometrischer Methoden zur Spuren-, Ultraspuren-, Isotopen- und Oberflächenanalytik für Forschungs aufgaben des Forschungszentrum Jülich (1996)
Record Number: 199611395 / Last updated on: 1996-12-18
Category: PUBLICATION
Original language: en
Available languages: en
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