Study of Protective Efficiency of Coatings on Base of Waste Synthetic Oil by Polarization Resistance Method

Issue 3(77) 2015
Pages 63-71

P.N. Bernatsky1, N.V. Shel2, V.I. Vigdorovich3, L.E. Tsygankova1, A.Yu. Kotina1

1VPO G.R. Derzhavin Tambov State University
2VPO Tambov State Technical University
3GNY «All-Russian Research Institute of Use of Engineering and Mineral Oil», Tambov

Keywords: steel, sodium chloride, sulfurous acid, corrosion, waste oil, film, inhibitor, efficiency, component, partial contributions

Protective efficiency of thin films on base of synthetic waste oil and emulgin against carbon
steel corrosion has been studied by the polarization resistance method in the 0.5 M NaCl solutions containing 5.7∙10–2…1.64 mmol/L sulfurous acid and products of its electrolytic
dissociation. Corrosion rate and partial contributions of surface corrosion products, oil and the inhibitor into protective ability are estimated after different time from the process beginning to achievement of stationary state or close to it. Their additive action is postulated.