Effect of α-tocopherol as a green inhibitor on chloride induced corrosion of steel

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dc.citation.epage10409
dc.citation.spage10396
dc.citation.volume14
dc.contributor.authorFuchs–Godec, Regina
dc.contributor.authorTomić, Milorad V.
dc.contributor.authorPavlović, Miomir G.
dc.date.accessioned2023-07-13T07:54:10Z
dc.date.available2023-07-13T07:54:10Z
dc.date.issued2019
dc.description.abstractImmersion of stainless-steel (SS) samples of type X4Cr13 in ethanol solutions of stearic acid, with and without addition of α-tocopherol, resulted in a modified surface with hydrophobic and corrosion resistance characteristics. We observed a double effect: a hydrophobic and corrosion-resistant surface of SS type X4Cr13 in a solution of 3.0% (wt.) NaCl at 25ºC. The corrosion properties of bare and modified surfaces of stainless steel were tested by polarization and electrochemical impedance spectroscopy (EIS) in 3.0% (wt.) NaCl solution at 25°C. To observe the morphology and microstructures of sample surfaces, a Scanning Electron Microscope (SEM) was used after the electrochemical measurements. The results obtained from potentiodynamic polarisation measurements show that the inhibition effectiveness of X4Cr13 reached ≈ 68% in cases when surfaces were modified in stearic acid alone (EIS measurements ≈ 82%), while the values increased to more than 99.0% (for both methods) with addition of α-tocopherol (E307). Modification of the surface using an immersion method in an ethanol solution of stearic acid, especially with addition of α-tocopherol, appears to be a promising treatment for improving the corrosion resistance of stainless steel (SS) X4Cr13.
dc.identifier.doi10.20964/2019.08.158
dc.identifier.urihttps://vaseljena.ues.rs.ba/handle/123456789/441
dc.language.isoen
dc.publisherElsevier
dc.sourceInternational Journal of Electrochemical Science
dc.subjectgreen inhibitor, steel, high-level-hydrophobic layer, fat soluble vitamin, aggressive media
dc.titleEffect of α-tocopherol as a green inhibitor on chloride induced corrosion of steel
dc.typeArticle
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