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Article Dans Une Revue Journal of Nuclear Materials Année : 2019

Ferritic and martensitic ODS steel resistance upset welding of fuel claddings: Weldability assessment and metallurgical effects

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Development and characterization of clad-to-plug resistance upset welds is presented for two oxide dispersion strengthened steels candidates for sodium-cooled fast reactors fuel cladding: 9Cr ferrito-martensitic steel and 14Cr ferritic steel. A comparative approach is adopted regarding these two materials implying weldability studies and weld mechanical strength tests. A special attention is paid on welding metallurgical effects on the specific microstructure of these materials. Among others, some major grain property modifications by dynamic recrystallization and a slight modification of precipitate sizes and volume fraction are found and discussed.
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hal-02090827 , version 1 (22-10-2021)

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Olivier Doyen, Brendan Le Gloannec, Alexis Deschamps, Frédéric De Geuser, Cédric Pouvreau, et al.. Ferritic and martensitic ODS steel resistance upset welding of fuel claddings: Weldability assessment and metallurgical effects. Journal of Nuclear Materials, 2019, 518, pp.326-333. ⟨10.1016/j.jnucmat.2019.03.013⟩. ⟨hal-02090827⟩
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