We investigate the influence of the products of electrochemical destruction of polymeric tape protective coatings formed in low-alkaline media under the conditions of cathodic polarization at 1.5 V (s.c.e.) and without cathodic polarization for different times on the corrosion, electrochemical, and stress-corrosion properties of pipe steel. It is shown that, for 2.5 months, the pH value shifts toward the alkaline region and the electric conductivity of the medium increases. We reveal an increase in the corrosion rate of pipe steel and its susceptibility to stress-corrosion cracking in the medium of model soil electrolyte in which the destruction of the coating occurs for 2.5 months both under the conditions of cathodic polarization and without it. It is demonstrated that the chemical composition of the polymeric film remains almost constant in the process of destruction.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V. F. Khromikhina, V. V. Glazkov, and F. V. Kotusova, “Influence of technological parameters on the resistance to cathodic exfoliation of the insulating coatings of pipelines,” in: Insulation of Pipelines [in Russian], VNIIST, Moscow (1982), pp. 57–67.
K. Z. Szklarska-Smialowska, Z. Xia, and R. B. Rebak, “Technical note: stress corrosion cracking of Х-52 carbon steel in dilute aqueous solutions,” Corrosion, 50, No. 5, 334–338 (1994).
L. Nyrkova, S. Osadchuk, S. Mel’nychuk, et al., “Investigation of the influence of the products of destruction of a polymeric coating on the corrosion properties of pipe steel in a neutral solution,” Fiz.-Khim. Mekh. Mater., Special Issue, No. 9, 662–667 (2012).
L. I. Tarutina and F. O. Pozdnyakova, Spectral Analysis of Polymers [in Russian], Khimiya, Leningrad (1986).
V. М. Chulanovskii (editor), Infrared Absorption Spectra of Polymers and Auxiliary Substances [in Russian], Khimiya, Leningrad (1969).
A. Kh. Kuptsov and G. N. Zhizhin, Fourier Transform Raman and Infrared Spectra of Polymers [in Russian], Fizmatlit, Moscow (2001).
DSTU 4219:2003. Steel Main Pipelines. General Requirements to Corrosion Protection [in Ukrainian], Derzhspozhyvstandart Ukrainy, Kyiv (2003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 50, No. 3, pp. 135–141, May–June, 2014.
Rights and permissions
About this article
Cite this article
Osadchuk, S.О., Nyrkova, L.І., Rybakov, А.О. et al. Influence of the Products of Electrochemical Destruction of Protective Coatings on the Properties of Pipe Steel in Low-Alkaline Media. Mater Sci 50, 461–467 (2014). https://doi.org/10.1007/s11003-014-9743-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11003-014-9743-2