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Journal of Materials Science

, Volume 30, Issue 5, pp 1259–1265 | Cite as

Effect of pH and hydrogen peroxide in radioactive water on the passivity of 1018 carbon steel

  • G. Bellanger
Papers

Abstract

Tritiated water, containing radiolytic hydrogen peroxide, was used in this work. In the vessels of the plant for the reprocessing of this water, the pH necessarily has different values, and consequently, we used pH values of 5–6 and 13 in our studies. The corrosion potential of the carbon steel, as well as the redox potential of the tritiated water taken immediately from a closed storage vessel with a pressure of 5×105 Pa radiolytic gas, are in the passive-transpassive potentials. Immediately after removal from storage, the concentration of hydrogen peroxide decreases rapidly and the potentials are in the prepassive region. This will subsequently reveal the importance of the concentration of radiolytic hydrogen peroxide in passivity and corrosion. During the corrosion and passivity tests, the thickness of the oxide layer with H2O2 was determined.

Keywords

Oxide Hydrogen Polymer H2O2 Hydrogen Peroxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • G. Bellanger
    • 1
  1. 1.Commissariat à l'Energie AtomiqueCentre d'Etudes de ValducIs sur TilleFrance

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