Material issues of blanket systems for fusion reactors; Compatibility with cooling water

Miwa, Yukio; Tsukada, Takashi; Jitsukawa, Shiro

Purazuma, Kaku Yugo Gakkai-Shi, 80(7), p.551 - 557, 2004/07

http://ci.nii.ac.jp/naid/110003827784

Environmental assisted cracking (EAC) is one of the materials issues for the reactor core components of light water power reactors (LWRs). Much experience and knowledge have been obtained about EAC in LWR field. They will be useful to manage the EAC of water-cooled blanket systems of the fusion reactors. For the austenitic stainless steels and the reduced-activation ferritic/martensitic steels, they clarifies that the EAC of a water-cooled blanket does not seem to be critical issues. However some uncertainties about influences of water temperatures, water chemistries and stress conditions may affect on the EAC. Considerations and further investigations investigating for such the uncertainties are discussed.