, Volume 57, Issue 5–6, pp 553–559 | Cite as

Steel Protection Mechanism by Kortecor 867 Type Strengthened Polymer Coating

  • E. S. Ivanov
  • A. L. Klyuev
  • A. P. Larkov

Impedance spectroscopy, optical microscopy, and electrochemistry are used to study processes beneath a Kortecor 867 coating. Impedance spectra are obtained, equivalent circuits are selected, and equivalent circuit parameters are determined. It is established that a Kortecor 867 coating 0.85 mm thick exhibits good insulating properties, low permeability for corrosive medium components, and it significantly increases time to the start of corrosion beneath a coating (induction period). It is established that with an increase in test time electrochemical reaction resistance for steel beneath a coating decreases, and this is due to a reduction in total pore surface; corrosion rate beneath a coating does not exceed 10–4 mm/year.


polymer steel coating impedance 


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Vyksa Metallurgical Plant, VyksaNizhnii Novgorod OblastRussia
  2. 2.Frumkin Institute of Physical Chemistry and ElectrochemistryRussian Academy of Sciences (IFKhE RAN)MoscowRussia
  3. 3.Kortekh CompanyMoscowRussia

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