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Metallurgist

, 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
Article
  • 48 Downloads

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.

Keywords

polymer steel coating impedance 

References

  1. 1.
    A. P. Larkov, Prakt. Protivokorros. Zashchita, No. 2(60), 28–35 (2011).Google Scholar
  2. 2.
    S. G. Niz’ev,Yu. S. Niz’eva, and A. P. Larkov, “Prospects and problems of plant insulation of connection components of pipeline closure fittings,” Territ. Neftegaz, No. 12, 54–59 (2008).Google Scholar
  3. 3.
    E. Barsoukov and J. R. MacDonald, Impedance Spectroscopy. Theory, Experiment and Application,Wiley-Interscience (2005).Google Scholar
  4. 4.
    C. Zoski, Handbook of Electrochemisry, Elsevier (2007).Google Scholar
  5. 5.
    M.-G. Olivier and M. Poelman, Use of Electrochemical Impedance Spectroscopy (EIS) for the Evaluation and Protection, Reza Shoja Razavi (ed.), ISBN: 978-953-307-920-2, InTech (2012), www.intechopen.com/books/recentresearches-in-corrosion-evaluation-and-protection/use-of-electrochemical-impedance-spectroscopy-eis-for-theevaluationof-electrocoatings-performances.
  6. 6.
    M. Hernandez, J. Genesca, J. Uruchurtu, and A. Barba, Corros. Sci., 59, 499–510 (2009).CrossRefGoogle Scholar
  7. 7.
    C. Zhong, X. Tang, and Y. E. Cheng, “Corrosion of steel under the deflected coating studied by localized electrochemical impedance spectroscopy,” Electrochim. Acta., 53, No. 14, 4740 (2008).CrossRefGoogle Scholar
  8. 8.
    M. O’Donoghue, R. Garret, V. Datta, et al., “Electrochemical impedance spectroscopy: testing coatings for rapid immersion service,” Material Performance, NACE Int., Houston, Texas (2003).Google Scholar
  9. 9.
    GOST 9.042-75, Inhibiting Polymer Coatings. Rapid Test Methods.Google Scholar
  10. 10.
    EN ISO 462402003, Lacquers and Paints. Determination of Adhesion by Separation Method. Method 2.Google Scholar

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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