Contribution to modeling of hydrogen effect on oxygen diffusion in Zy-4 alloy during high temperature steam oxidation. - Archive ouverte HAL Access content directly
Journal Articles Oxidation of Metals Year : 2013

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

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.
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Dates and versions

hal-03526548 , version 1 (14-01-2022)

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Benoît Mazères, Clara Desgranges, Caroline Toffolon-Masclet, Daniel Monceau. Contribution to modeling of hydrogen effect on oxygen diffusion in Zy-4 alloy during high temperature steam oxidation.. Oxidation of Metals, 2013, 79 (1-2), pp.121-133. ⟨10.1007/s11085-012-9335-1⟩. ⟨hal-03526548⟩
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