高温高圧希釈人工海水中におけるSUS304 鋼の隙間腐食挙動に及ぼすγ線照射の影響
Effects of Gamma Ray Irradiation on Crevice Corrosion Behavior of Type 304 Stainless Steel in High Temperature High Pressure Diluted Artificial Seawater.
著者:
橘 正彦 Masahiko TACHIBANA 石田 一成 Kazushige ISHIDA 和田 陽一 Yoichi WADA 清水 亮介 Ryosuke SHIMIZU 太田 信之 Nobuyuki OTA 茂中 尚登 Naoto SHIGENAKA 会沢 元浩 Motohiro AIZAWA
発刊日:
公開日:
Artificial SeawaterChloride ionCrevice corrosionHigh TemperatureNuclear Power PlantRepassivation PotentialStainless Steel
概要
In order to confirm the effects of gamma-ray irradiation on crevice corrosion behavior of type 304 stainless steel (304 SS), the repassivation potential was experimentally examined in high temperature test seawater (simulated diluted seawater) under gamma-ray irradiation in diluted artificial seawater at temperatures from 323 to 553 K, in conformity to Japanese Industrial Standards (JIS) G 0592. Overall, for high temperatures from 373 to 553 K, the repassivation potentials decreased with increasing chloride ion concentration in the test seawater, which was the same as the behavior observed under the not irradiated condition. And, the repassivation potential obtained under gamma-ray irradiation indicated same or high value compared with that of not irradiation condition. Consequently, the effects of gamma-ray irradiation on crevice corrosion behavior of 304 SS was slightly under the conditions of this work.
