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Report No.

Microstructural evolution of SINQ irradiated austenitic stainless steels

Sawai, Tomotsugu; Kitsunai, Yuji*; Saito, Shigeru  ; Kikuchi, Kenji

A type 316 stainless steel 316F and Ti-modified type 316 stainless steel JPCA irradiated in SINQ were examined using transmission electron microscopy. Estimated irradiation temperature for two 316F specimens were 250-300$$^{circ}$$C and that for the JPCA specimen was 255$$^{circ}$$C. Irradiation damage of these specimens is calculated to be about 10 dpa. Frank loops up to 30 nm and larger perfect loops up to 50 nm were observed in 316F irradiated at 300$$^{circ}$$C. Frank loops observed in JPCA is somewhat smaller, suggesting lower dislocation bias in JPCA.



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Category:Materials Science, Multidisciplinary



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