Pitting potential of zircaloy-2 in artificial seawater under -ray irradiation

線照射下での人工海水におけるジルカロイ2の孔食電位

本岡 隆文; 小松 篤史 ; 塚田 隆 ; 山本 正弘 

Motooka, Takafumi; Komatsu, Atsushi; Tsukada, Takashi; Yamamoto, Masahiro

Pitting potentials of zircaloy-2 in artificial seawater were measured as a function of chloride concentration or solution temperature with and without -ray irradiation. The corrosion potentials of zircaloy-2 were also measured over 720 h. The pitting potential with -ray irradiation was slightly greater than that without the irradiation. In both cases with and without the irradiation, the corrosion potentials of zircaloy-2 did not exceed the pitting potential. The pitting potential under irradiation decreased with increasing chloride concentration and/or solution temperature.