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Parametric study of 15Cr / 15Ni austenitic steels swelling behavior under irradiation using cluster dynamics

Abstract : As part of the research program on generation IV reactors, CEA is developing new grades of austen-itic steels for the fuel cladding of Sodium Fast Reactors (SFR). Austenitic stainless steels show ex-cellent properties in SFR’s extreme operating conditions: corrosive environment, high operating tem-perature (400-700 ° C) and highly energetic neutron flux. However, the appearance of the swelling phenomenon under irradiation limits cladding lifespan. The most optimized French grade is AIM1, a 15Cr-15Ni austenitic stabilized steel, which sustain doses up to 100 displacements per atom (dpa).
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Submitted on : Wednesday, November 27, 2019 - 10:47:00 AM
Last modification on : Friday, August 6, 2021 - 9:48:05 AM

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  • HAL Id : cea-02339464, version 1

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A. Vaugoude, T. Jourdan, Mh. Mathon, D. Thiaudiere, A. Legris, et al.. Parametric study of 15Cr / 15Ni austenitic steels swelling behavior under irradiation using cluster dynamics. ICAPP 2019 International Congress on Advances in Nuclear Power Plants, May 2019, Juan Les Pins, France. ⟨cea-02339464⟩

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