Corrosion Behavior of Carbon Steel at Water Line under Gamma Ray Irradiation

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  • ガンマ線照射環境下における炭素鋼の喫水部腐食
  • ガンマセン ショウシャ カンキョウ カ ニ オケル タンソコウ ノ キッスイブ フショク

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<p>In the primary containment vessel （PCV） of Fukushima Daiichi Nuclear Power Station （1F）, corrosion data for understanding and predicting the corrosion behavior at the water line under the gamma-ray irradiation environment, which could be a potential problem, were obtained by the corrosion test. The results of corrosion tests clearly showed that the corrosion was accelerated by the superposition of water film effect and irradiation effect. From the viewpoint of the corrosion acceleration mechanism, it was considered that the oxygen supply from the atmosphere was more pronounced near the water line and the concentration of hydrogen peroxide produced by the radiolysis of water was higher, both of which contributed to the corrosion acceleration.</p>

Journal

  • Corrosion Engineering

    Corrosion Engineering 70 (12), 436-440, 2021-12-10

    Japan Society of Corrosion Engineering

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