Abstract
Hydrogen water chemistry (HWC) was applied to the Fugen Nuclear Power Station. This is the first application of HWC in Japan as a countermeasure against stress corrosion cracking (SCC) of Type 304 stainless steel. After one year of experimental HWC, critical oxygen concentration range was determined as 10-15ppb to protect sensitized Type 304 stainless steel from SCC. Corrosion potential corresponding to this oxygen concentration ranged -210--250mV (υs. SHE). No significant dose increase or local hydrogen accumulation was observed with HWC. Hydrogen has been injected continuously since 1985 with a water electrolysis hydrogen/oxygen generating system. Integrity of the materials constituting reactor cooling system other than Type 304 stainless steel was also confirmed in in-plant and laboratory autoclave tests.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.