Calculation of corrosion environment using corrosion database under irradiation

Sato, Tomonori ; Hata, Kuniki ; Kaji, Yoshiyuki ; Inoue, Hiroyuki*; Taguchi, Mitsumasa*; Seito, Hajime*; Tada, Eiji*; Abe, Hiroshi*; Akiyama, Eiji*

Water radiolysis calculations were performed to evaluate corrosion environments under irradiation by using database of corrosion under irradiation. It was confirmed that the dissolved oxygen is one of major factors to determine the generation of hydrogen peroxide, and the concentration of hydrogen peroxide could be controlled by the control of dissolved oxygen concentration. As a result of the calculation for the water radiolysis including impurities, the effects of Cl $^{-}$ on water radiolysis is negligible at concentration less than 10 $^{-3}$ mol/L. The effects of Br $^{-}$ is negligible at concentration less than 10 $^{-6}$ mol/L. The effects of HCO $_{3}$ $^{-}$ is negligible at concentration less than 10 $^{-2}$ mol/L.

Language	:	Japanese
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Meeting title	:	腐食防食学会第67回材料と環境討論会
Held date	:	2020/10
Location (city)	:	盛岡(online)
Location (country)	:	日本
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Keywords	:	ラジオリシス; 腐食環境; 過酸化水素; 腐食データベース; 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
Research Facility	:	コバルト60照射施設
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Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : BB20200447
JAEA Abstracts No. :
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