Enhancement of Anticorrosion Properties of Epoxy Based Primer Coating by Bis[[3,4-Dihydroxyphenylmethylene] carbonothioicdihydrazide] on AA2024-T3 Alloy

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dc.contributor.authorPrakashaiah, B.G.
dc.contributor.authorNityananda Shetty, A.N.
dc.contributor.authorAmitha Rani, B.E.A.
dc.date.accessioned2026-02-05T09:28:13Z
dc.date.issued2020
dc.description.abstractAbstract: A corrosion inhibitor bis[[3,4-dihydroxyphenylmethylene]carbonothioicdihydrazide] (DCT) was synthesized and used to improve the corrosion resistance of an epoxy based primer coating on AA2024-T3 alloy in NaCl solution. The ability of DCT to inhibit the corrosion was evaluated by electrochemical studies. The compound exhibited an inhibition efficiency of 99%. The surfaces of the corroded specimens were characterized by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The anticorrosion nature of the substrate coated with a commercial epoxy-based primer doped with DCT was evaluated by electrochemical impedance spectroscopy and a salt spray test. The results established not only the ability of DCT to improve the anticorrosion property of the epoxy based primer coating on AA2024-T3 alloy but also a sustained corrosion protection (1000 h) of the alloy. © 2020, Allerton Press, Inc.
dc.identifier.citationSurface Engineering and Applied Electrochemistry, 2020, 56, 5, pp. 610-623
dc.identifier.issn10683755
dc.identifier.urihttps://doi.org/10.3103/S1068375520050129
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/23732
dc.publisherPleiades journals compmg@maik.ru
dc.subjectCorrosion inhibitors
dc.subjectCorrosion resistance
dc.subjectCorrosion resistant alloys
dc.subjectElectrochemical corrosion
dc.subjectElectrochemical impedance spectroscopy
dc.subjectEnergy dispersive spectroscopy
dc.subjectField emission microscopes
dc.subjectScanning electron microscopy
dc.subjectSodium alloys
dc.subjectSodium chloride
dc.subjectX ray photoelectron spectroscopy
dc.subjectAA2024-T3 alloys
dc.subjectAnti-corrosion property
dc.subjectElectrochemical studies
dc.subjectEnergy dispersive X ray spectroscopy
dc.subjectField emission scanning electron microscopy
dc.subjectInhibition efficiency
dc.subjectPrimer coatings
dc.subjectSalt Spray test
dc.subjectCorrosion resistant coatings
dc.titleEnhancement of Anticorrosion Properties of Epoxy Based Primer Coating by Bis[[3,4-Dihydroxyphenylmethylene] carbonothioicdihydrazide] on AA2024-T3 Alloy

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