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Report No.

Overview on recent progress toward small specimen test technique

Wakai, Eiichi  ; Kikuchi, Takayuki; Kim, B.*; Kimura, Akihiko*; Nogami, Shuhei*; Hasegawa, Akira*; Nishimura, Arata*; Soldaini, M.*; Yamamoto, Michiyoshi*; Knaster, J.*

The main objective of IFMIF (International Fusion Materials Irradiation facility) is to obtain the material data base obtained from a series of tests using small specimens mainly irradiated in the IFMIF for the design and licensing of fusion DEMO and power reactors. In this study, we present the contents of (1) recent evaluation of SSTT such as fracture toughness developed in IFMIF/EVEDA project, (2) the evaluation of structural integrity of RAF/M steels for the Fusion DEMO reactors, and (3) engineering design of the Post Irradiation Examination (PIE) facility of IFMIF. The analysis of the fracture behavior of brittle-ductile transition region of RAF/M steels is very important to evaluate the structural integrity of RAF/M steels for the Fusion DEMO reactors, and it should be applied by new methods such as random-inhomegeneity method of K. Wallin and M. Sokolov and the modified master curve method of ASTM E1921 of P. Spatig, and one of objectives of this study is focused on the further developed analysis to generalize the methods for SSTT and structural integrity of RAF/M steels.



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Category:Nuclear Science & Technology



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