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Contribution to modeling of hydrogen effect on oxygen diffusion in Zy-4 alloy during high temperature steam oxidation

Mazères, Benoît and Desgranges, Clara and Toffolon-Masclet, Caroline and Monceau, Daniel Contribution to modeling of hydrogen effect on oxygen diffusion in Zy-4 alloy during high temperature steam oxidation. (2013) Oxidation of Metals, 79 (1-2). 121-133. ISSN 0030-770X

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Official URL: http://dx.doi.org/10.1007/s11085-012-9335-1

Abstract

Previous studies have shown that the numerical model EKINOX-Zr was able to simulate with accuracy oxide growth and oxygen diffusion into the matrix during high-temperature oxidation of Zy-4. In this study, the aim of the development was to evaluate if the observed effect of hydrogen cladding content on the increase of oxygen solubility in the high temperature βZr was only a thermodynamic effect. Previous experimental studies have shown that hydrogen induces an evolution of equilibrium oxygen concentration at the a αZr /βZr interface. The present work showed that EKINOX-Zr linked with the thermodynamic database Zircobase reproduced the evolution induced by hydrogen during the high-temperature steam oxidation. However, the results showed also that additional studies are necessary to better understand hydrogen behavior during high-temperature oxidation of Zr.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The definitive version is available at http://link.springer.com The origianl PDF can be found at Oxidation of Metals website: http://link.springer.com/article/10.1007%2Fs11085-012-9335-1
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:23 Sep 2013 09:52

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