%0 Journal Article %T Effect of a pre-oxide on the high temperature steam oxidation of Zircaloy-4 andM5 alloys %+ Service des Recherches Métallurgiques Appliquées (SRMA) %+ Institut de Recherche Dupuy de Lôme (IRDL) %+ Service d'Etudes Mécaniques et Thermiques (SEMT) %+ Matériaux et Mécanique des Composants (EDF R&D MMC) %+ FRAMATOME %A Le Saux, Matthieu %A Brachet, J.C. %A Vandenberghe, V. %A Rouesne, E. %A Urvoy, S. %A Ambard, A. %A Chosson, R. %< avec comité de lecture %@ 0022-3115 %J Journal of Nuclear Materials %I Elsevier %V 518 %P 386-399 %8 2019 %D 2019 %R 10.1016/j.jnucmat.2019.03.023 %K Loss of coolant accidents %K High temperature %K Thermooxidation %K Transport properties %K Zircaloy-4 %K LOCA %K M5 Framatome %K Steam %K Pre-oxide %K preoxidation %K high temperature oxidation %K M5 %Z Physics [physics]/Nuclear Experiment [nucl-ex] %Z Physics [physics]/Nuclear Theory [nucl-th]Journal articles %X The effect of a pre-existing oxide layer formed at low temperature on the subsequent oxidation in steam at high temperature was studied for Zircaloy-4 and M5 Framatome alloys. Various pre-oxidation conditions (air at 550 °C, steam at 415 °C, static and flowing water at ∼350 °C), pre-oxide thicknesses (3–60 μm) and high temperature oxidation conditions (850–1200 °C, 55–9500s) were investigated. Pre-oxide has an effect on the oxidation kinetics and the hydrogen uptake at high temperature, depending on the pre-oxide thickness, the pre-oxidation conditions, the alloy and the high temperature oxidation conditions. %G English %2 https://ensta-bretagne.hal.science/hal-02149361/document %2 https://ensta-bretagne.hal.science/hal-02149361/file/S002231151830970X.pdf %L hal-02149361 %U https://ensta-bretagne.hal.science/hal-02149361 %~ CEA %~ UNIV-BREST %~ ENSTA-BRETAGNE %~ CNRS %~ UNIV-UBS %~ UBS %~ ENIB %~ DSV %~ DEN %~ CEA-UPSAY %~ IRDL %~ UNIV-PARIS-SACLAY %~ CEA-UPSAY-SACLAY %~ EDF %~ CEA-DRF %~ DEN-SACLAY %~ ENSTA-BRETAGNE-MECA %~ TEST-HALCNRS %~ GS-ENGINEERING %~ GS-PHYSIQUE %~ ENSTA-BRETAGNE-PTR5-IRDL