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Russian Journal of Electrochemistry

, Volume 41, Issue 3, pp 328–330 | Cite as

Anodic treatment of steel 40Kh in a 35-% sulfuric acid electrolyte containing chloride ions

  • Yu. A. Ivashkin
Short Communications
  • 16 Downloads

Abstract

Anodic dissolution of steel 40Kh in a sulfuric acid electrolyte containing Cl ions is studied by analyzing the experimental dependence of anodic current on the specimen potential. The dependences of the critical passivation current, anodic current at −0.15 to 0.55 V (Ag/AgCl), and passivation current on the concentration of Cl ions (c) are determined. The maximum value of c for the passivation at 0.55–1.6 V (Ag/AgCl) is refined. The dependence of the specimen’s steady-state potential on c is determined and its decrease is related to an abrupt increase in the anodic current at the passivation potentials.

Key words

anodic treatment of steel etching rate oxide film passivation steady-state potential 

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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • Yu. A. Ivashkin
    • 1
  1. 1.Bryansk State Engineering and Technological AcademyBryanskRussia

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