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タイトル海水成分含有水におけるジルカロイ-2の孔食発生に及ぼすgamma線分解の影響
翻訳タイトルEffect of gamma radiolysis on pit initiation of zircaloy-2 in water containing sea salt
情報提供機関Taylor & Francis
著者本岡 隆文
著者小松 篤史
著者塚田 隆
著者山本 正弘
掲載日2014-07
言語eng
ページ数987p.-995p.
種別report
内容記述We investigated the effect of radiolysis on pit initiation of zircaloy-2 in water containing sea salt. Changes in the composition of water containing sea salt were analyzed as well, both before and after gamma-ray irradiation. The characteristics of the resultant oxide films formed on zircaloy-2 were evaluated by X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy. The experimental results showed that the pitting potential under irradiation was slightly higher than that under conditions in which no radiation was present, and that the pitting potential decreased with increasing chloride concentration in the presence as well as the absence of radiation. Solution analyses for water containing sea salt showed that hydrogen peroxide was generated by irradiation. The oxide film was composed of zirconium oxide and was made thicker during the irradiation. Under gamma-ray irradiation, the zircaloy-2 surface with an oxide film formed by radiolysis products was found to be resistant to pitting in the presence of chloride.
情報源JOPSS関連URL関連URL
URIhttps://f-archive.jaea.go.jp/dspace/handle/faa/211456