Breakdown and evolution of the protective oxide scales of AISI 304 and AISI 316 stainless steels under high-temperature oxidation

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comunitat-uji-handle:10234/9

comunitat-uji-handle2:10234/7034

comunitat-uji-handle3:10234/8619

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Title
Breakdown and evolution of the protective oxide scales of AISI 304 and AISI 316 stainless steels under high-temperature oxidation
Author (s)
 Habib Ameen, Kudama;
 Damra, M. S.;
 Saura Barreda, Juan J.;
 Cervera González, Iván;
 Bellés Bellés, Joan
Date
2011
Publisher
Hindawi Publishing Corporation
URI
http://hdl.handle.net/10234/41541
DOI
http://dx.doi.org/10.1155/2011/824676
ISSN
1687-9325; 1687-9333
Bibliographic citation
International Journal of Corrosion (2011), vol. 2011, article ID 824576, 1-10
Type
info:eu-repo/semantics/article
Publisher version
http://www.hindawi.com/journals/ijc/2011/824676/ref/
Subject
Abstract
The failure of the protective oxide scales of AISI 304 and AISI 316 stainless steels has been studied and compared at 1,000°C in synthetic air. First, the isothermal thermogravimetric curves of both stainless steels ... [+]
The failure of the protective oxide scales of AISI 304 and AISI 316 stainless steels has been studied and compared at 1,000°C in synthetic air. First, the isothermal thermogravimetric curves of both stainless steels were plotted to determine the time needed to reach the breakdown point. The different resistance of each stainless steel was interpreted on the basis of the nature of the crystalline phases formed, the morphology, and the surface structure as well as the cross-section structure of the oxidation products. The weight gain of AISI 304 stainless steel was about 8 times greater than that of AISI 316 stainless steel, and AISI 316 stainless steel reached the breakdown point about 40 times more slowly than AISI 304 stainless steel. In both stainless steels, reaching the breakdown point meant the loss of the protective oxide scale of Cr2O3, but whereas in AISI 304 stainless steel the Cr2O3 scale totally disappeared and exclusively Fe2O3 was formed, in AISI 316 stainless steel some Cr2O3 persisted and Fe3O4 was mainly formed, which means that AISI 316 stainless steel is more resistant to oxidation after the breakdown. [-]
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info:eu-repo/semantics/openAccess
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Copyright © 2011 K. A. Habib et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Except where otherwise noted, this item's license is described as Copyright © 2011 K. A. Habib et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited