Stress relieved Zircaloy-4 recovery and recrystallization during fast anisothermal transients - EDF
Article Dans Une Revue Journal of Nuclear Science and Technology Année : 2022

Stress relieved Zircaloy-4 recovery and recrystallization during fast anisothermal transients

Ahmed Chaieb
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Antoine Ambard
Aurore Parrot
Alain Köster
Jérôme Crépin

Résumé

Cold-work stress-relieved Zircaloy-4 kinetics of recovery-recrystallization has been studied under dynamic conditions. A specific furnace dilatometer was used to heat Zircaloy-4 specimens up to 430 °C∙s〗^(-1). Comparison of dynamic results with data of isothermal recovery and recrystallization showed that the process is delayed when the heating rate is increased. A model was proposed to describe the evolution of the material unrecrystallized fraction during rapid anisothermal transients. Comparisons showed a good agreement between the experimental results and the model predictions.
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Dates et versions

hal-04030267 , version 1 (11-05-2023)

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Citer

Ahmed Chaieb, Nathanaël Mozzani, Antoine Ambard, Aurore Parrot, Alain Köster, et al.. Stress relieved Zircaloy-4 recovery and recrystallization during fast anisothermal transients. Journal of Nuclear Science and Technology, 2022, 59 (12), pp.1-9. ⟨10.1080/00223131.2022.2076750⟩. ⟨hal-04030267⟩
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