Gamma-ray Irradiation Effects on Corrosion Rates of Stainless Steel in Boiling Nitric Acid Containing Ionic Additives

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Irradiation effects of γ-rays on corrosion rates of type 304ULC stainless steel in 9×10<SUP>-3</SUP>mol/m<SUP>3</SUP> boiling nitric acid containing an ionic additive of multivalence elements of Ce(IV), Cr(VI) or Ru(III) were studied by measuring weight losses of specimens immersed under the <SUP>60</SUP>Co γ-ray irradiation of 1kC/(kg.h) (4MR/h). Tests without irradiation were carried out as well to obtain reference data. All the coexisting ionic species enhanced the corrosion in comparison with those in pure nitric acid, and the γ-ray irradiation moderated the enhancement. The valence analyses of these additives and redox potential measurements before and after the immersion batch under the irradiation suggested that the reduction of Ce(IV) and Cr(VI) induced by the irradiation have moderated the corrosion environment.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 35(5), 353-356, 1998-05-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002079409
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4474207
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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