The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel

The electrochemical and transport properties, as well as the thermal stability of epoxy coatings electrodeposited on steel and steel modified by Zn-Ni alloys were investigated during exposure to 3% NaCl. The Zn-Ni alloys were electrodeposited on steel using direct and pulse current. From th...

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Main Authors: Mišković-Stanković Vesna B., Bajat Jelena B., Maksimović Miodrag D., Kačarević-Popović Zorica M.
Format: Article
Language:English
Published: Serbian Chemical Society 2000-01-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390012923M.pdf
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author Mišković-Stanković Vesna B.
Bajat Jelena B.
Maksimović Miodrag D.
Kačarević-Popović Zorica M.
author_facet Mišković-Stanković Vesna B.
Bajat Jelena B.
Maksimović Miodrag D.
Kačarević-Popović Zorica M.
author_sort Mišković-Stanković Vesna B.
collection DOAJ
description The electrochemical and transport properties, as well as the thermal stability of epoxy coatings electrodeposited on steel and steel modified by Zn-Ni alloys were investigated during exposure to 3% NaCl. The Zn-Ni alloys were electrodeposited on steel using direct and pulse current. From the time dependence of the pore resistance of the epoxy coating (impedance measurements), the diffusion coefficient of water through the epoxy coating (gravimetric liquid sorption measurements) and the thermal stability of the epoxy coating (thermogravimetric analysis), it was shown that Zn-Ni sublayers significantly improve the corrosion stability of a protective system based on an epoxy coating. The values of the pore resistance were almost unchanged over a long period of immersion time for epoxy coatings on steel modified by Zn-Ni alloys, inidicating the great stability of these protective systems.
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spelling doaj.art-d2c8cc981bbd4d1a838003c59e8db6fe2022-12-21T20:20:42ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212000-01-01651292393310.2298/JSC0012923M0352-51390012923MThe effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steelMišković-Stanković Vesna B.0Bajat Jelena B.1Maksimović Miodrag D.2Kačarević-Popović Zorica M.3Faculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, BelgradeFaculty of Technology and Metallurgy, BelgradeVinča Institute of Nuclear Sciences, BelgradeThe electrochemical and transport properties, as well as the thermal stability of epoxy coatings electrodeposited on steel and steel modified by Zn-Ni alloys were investigated during exposure to 3% NaCl. The Zn-Ni alloys were electrodeposited on steel using direct and pulse current. From the time dependence of the pore resistance of the epoxy coating (impedance measurements), the diffusion coefficient of water through the epoxy coating (gravimetric liquid sorption measurements) and the thermal stability of the epoxy coating (thermogravimetric analysis), it was shown that Zn-Ni sublayers significantly improve the corrosion stability of a protective system based on an epoxy coating. The values of the pore resistance were almost unchanged over a long period of immersion time for epoxy coatings on steel modified by Zn-Ni alloys, inidicating the great stability of these protective systems.http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390012923M.pdfelectrodepositionepoxy coatingszn-ni alloyssteelcorrosioneis
spellingShingle Mišković-Stanković Vesna B.
Bajat Jelena B.
Maksimović Miodrag D.
Kačarević-Popović Zorica M.
The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
Journal of the Serbian Chemical Society
electrodeposition
epoxy coatings
zn-ni alloys
steel
corrosion
eis
title The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
title_full The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
title_fullStr The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
title_full_unstemmed The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
title_short The effect of Zn-Ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
title_sort effect of zn ni sublayers on the corrosion behaviour and thermal stability of epoxy coatings electrodeposited on steel
topic electrodeposition
epoxy coatings
zn-ni alloys
steel
corrosion
eis
url http://www.doiserbia.nb.rs/img/doi/0352-5139/2000/0352-51390012923M.pdf
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