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Report No.

Effect of sulfate ion on corrosion behavior of SUS316L in high active liquid waste

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

We study the effect of sulfate ion which is one component of seawater or concrete on the corrosion behavior in high active liquid waste tank environment. The corrosion tests were conducted using SUS316L and surrogate high active liquid waste containing some metal ions and nitric acid. The results showed that sulfate ion inhibited the corrosion rates. The XPS results indicated the attachment of sulfate ion to material surfaces suppressed the anode reaction.



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