| Download | - View accepted manuscript: 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 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1111/ffe.14081 |
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| Author | Search for: Lu, Chuanyang; Search for: Wang, Peng; Search for: Zheng, Silu; Search for: Wu, Xijia1ORCID identifier: https://orcid.org/0000-0002-0250-112X; Search for: Liu, RongORCID identifier: https://orcid.org/0000-0003-3296-3883; Search for: He, Yanming; Search for: Yang, Jianguo; Search for: Gao, Zengliang; Search for: Tu, Shan‐TungORCID identifier: https://orcid.org/0000-0002-8328-1666 |
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| Affiliation | - National Research Council of Canada. Aerospace
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| Funder | Search for: National Natural Science Foundation of China; Search for: Natural Science Foundation of Zhejiang Province |
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| Format | Text, Article |
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| Subject | creep deformation mechanism; creep model; life prediction; reactor pressure vessel; SA508 Gr.3 steel |
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| Abstract | 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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| Publication date | 2023-06-21 |
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| Publisher | John Wiley & Sons, Inc. |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 76ef6b7c-5231-4417-9591-6475c7186415 |
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| Record created | 2023-09-12 |
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| Record modified | 2023-09-12 |
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