DOYEN, Olivier; GLOANNEC, Brendan Le; DESCHAMPS, Alexis; GEUSER, Frédéric De; POUVREAU, Cédric; POULON-QUINTIN, Angeline

doi:10.1016/j.jnucmat.2019.03.013

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DOYEN, Olivier
Service d'Etudes Mécaniques et Thermiques [SEMT]

GLOANNEC, Brendan Le
Service d'Etudes Mécaniques et Thermiques [SEMT]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DESCHAMPS, Alexis
Science et Ingénierie des Matériaux et Procédés [SIMaP ]

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Journal of Nuclear Materials. 2019-05, vol. 518, p. 326-333

Elsevier

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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.< Leer menos

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Microstructure

Nuclear fuel cladding

ODS steel

Resistance upset welding

Nano-precipitates

EBSD

SAXS

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

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