高放射性廃液貯槽環境におけるSUS316Lの腐食に及ぼす硫酸イオンの影響

安倍 弘; 佐野 雄一; 西塚 雄介; 飯嶋 静香; 内田 直樹

doi:10.3323/jcorr.66.169

Conference Publication

Effect of Sulfate Ion on Corrosion Behavior of SUS316L in High Active Liquid Waste

Hiromu Ambai, Yuichi Sano, Yusuke Nishizuka, Shizuka Iijima, Naoki Uchida

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Keywords: Fukushima Daiichi nuclear power plant, nuclear fuel reprocessing, corrosion of stainless steel, oxidizing metallic ion

JOURNAL FREE ACCESS

2017 Volume 66 Issue 5 Pages 169-172

DOI https://doi.org/10.3323/jcorr.66.169

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Abstract

The effect of sulfate ion which is one component of seawater or concrete on the corrosion behavior of SUS316L was investigated in high active liquid waste tank environment. The corrosion tests were conducted using surrogate high active liquid waste containing some oxidizing metallic ions and nitric acid. The results showed that sulfate ion decreased the corrosion rates. The XPS analysis indicated that the compound formed from sulfate ion on material surfaces suppressed the anodic reaction.

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