Thermo-mechanical behavior of Zircaloy-4 claddings under simulated post-DNB conditions

The thermo-mechanical behavior of Zircaloy-4 claddings under simulated post-DNB RIA conditions was investigated. Around twenty experiments were performed in simulated post-DNB conditions, i.e. creep ballooning tests with heating rates greater than 1000°C/s. Two different levels of pressure of 7 and 11 bar were tested for temperatures of interest ranging from 840°C to 1020°C. A complex creep behavior was highlighted in this range of temperature. It appears very well correlated to the phase content present within the material during fast thermal transients. Tests with low thermal transients were also performed and evidence a strong impact of the heating rate on the thermo-mechanical properties of the claddings.

Mots clés

Fast thermal transients Full-field measurements Creep Zircaloy-4 RIA

Domaines

Matériaux et structures en mécanique [physics.class-ph]

Fichier principal

2020_JNM_Jailin.pdf (5.91 Mo)

Origine	Fichiers produits par l'(les) auteur(s)

Nicolas TARDIF : Connectez-vous pour contacter le contributeur

https://hal.science/hal-02437246

Soumis le : mercredi 15 janvier 2020-17:31:34

Dernière modification le : mardi 19 novembre 2024-10:30:04

Archivage à long terme le : jeudi 16 avril 2020-18:01:06

Dates et versions

hal-02437246 , version 1 (13-01-2020)

hal-02437246 , version 2 (15-01-2020)

hal-02437246 , version 3 (12-07-2022)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

HAL Id : hal-02437246 , version 2
DOI : 10.1016/j.jnucmat.2020.151984

Citer

T. Jailin, Nicolas Tardif, J. Desquines, P. Chaudet, Michel Coret, et al.. Thermo-mechanical behavior of Zircaloy-4 claddings under simulated post-DNB conditions. Journal of Nuclear Materials, 2020, pp.151984. ⟨10.1016/j.jnucmat.2020.151984⟩. ⟨hal-02437246v2⟩

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