| Téléchargement | - Voir le manuscrit accepté : Creep behavior and life prediction of a reactor pressure vessel steel above phase‐transformation temperature via a deformation mechanism‐based creep model (PDF, 5.6 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1111/ffe.14081 |
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| Auteur | Rechercher : Lu, Chuanyang; Rechercher : Wang, Peng; Rechercher : Zheng, Silu; Rechercher : Wu, Xijia1Identifiant ORCID : https://orcid.org/0000-0002-0250-112X; Rechercher : Liu, RongIdentifiant ORCID : https://orcid.org/0000-0003-3296-3883; Rechercher : He, Yanming; Rechercher : Yang, Jianguo; Rechercher : Gao, Zengliang; Rechercher : Tu, Shan‐TungIdentifiant ORCID : https://orcid.org/0000-0002-8328-1666 |
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| Affiliation | - Conseil national de recherches du Canada. Aérospatiale
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| Bailleur de fonds | Rechercher : National Natural Science Foundation of China; Rechercher : Natural Science Foundation of Zhejiang Province |
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| Format | Texte, Article |
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| Sujet | creep deformation mechanism; creep model; life prediction; reactor pressure vessel; SA508 Gr.3 steel |
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| Résumé | For nuclear power generation as a carbon-neutral energy source, in-vessel retention (IVR) must be implemented to maintain the structural integrity of nuclear reactor pressure vessel (RPV) for more than 72 h under severe accidental conditions. This technology requires accurate prediction of creep deformation and life of RPV material being operated under pressure and extremely high-temperature gradient. The current work develops a simplified deformation-mechanism-based true-stress (DMTS) model for creep behavior/life-prediction of SA508 Gr.3 steel, a typical RPV material, above the phase transformation temperatures (800–1000°C). This model is used to evaluate the time to specific creep strain (t₃% and t₅%) and rupture (tr), in comparison with popular empirical methods such as Orr–Sherby–Dorn (OSD) and Larson–Miller (LM). The simplified DMTS model achieves an excellent agreement with the experimental observations. The controlling deformation mechanisms are also discussed by metallurgical examinations, which provide the physical premise for the model development and application. |
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| Date de publication | 2023-06-21 |
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| Maison d’édition | John Wiley & Sons, Inc. |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 76ef6b7c-5231-4417-9591-6475c7186415 |
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| Enregistrement créé | 2023-09-12 |
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| Enregistrement modifié | 2023-09-12 |
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