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Corrosion Performance of the Zn Coatings on AISI 1212 Mild Steel in 0.5 M NaCl Medium: Influence of Thicknesses of Metallic Film

Corrosion Performance of the Zn Coatings on AISI 1212 Mild Steel in 0.5 M NaCl Medium: Influence... The study was carried out to evaluate the electrodeposited performance of electrolytic Zn coated between different thicknesses (Zn-10 μm and Zn-20 μm) and passivation process in protecting AISI 1212 mild steel (MS) from corrosion. Corrosion testing of both methods was performed in 0.5 M NaCl solution by ac impedance measurements (AIM) and Tafel polarization curves (TPC). The inhibition performance was studied by electrochemical and surface analysis techniques (FESEM-EDS, AFM, XRD), which revealed that high strength metallic film forms successfully after passivation applied on the surface in the chloride ions. The results showed that Zn-20 μm coating gave very low inhibition of MS corrosion in chloride solution (~45%), while MS coated with passivation process provided high-efficiency protection (~98%) to the surface. The film resistance (RLPR) obtained from the linear polarization method (LPM) was compatible with AIM method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Protection of Metals and Physical Chemistry of Surfaces Springer Journals

Corrosion Performance of the Zn Coatings on AISI 1212 Mild Steel in 0.5 M NaCl Medium: Influence of Thicknesses of Metallic Film

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References (35)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2023. ISSN 2070-2051, Protection of Metals and Physical Chemistry of Surfaces, 2023, Vol. 59, No. 2, pp. 220–231. © Pleiades Publishing, Ltd., 2023. ISSN 2070-2051, Protection of Metals and Physical Chemistry of Surfaces, 2023. © Pleiades Publishing, Ltd., 2023.
ISSN
2070-2051
eISSN
2070-206X
DOI
10.1134/s207020512206020x
Publisher site
See Article on Publisher Site

Abstract

The study was carried out to evaluate the electrodeposited performance of electrolytic Zn coated between different thicknesses (Zn-10 μm and Zn-20 μm) and passivation process in protecting AISI 1212 mild steel (MS) from corrosion. Corrosion testing of both methods was performed in 0.5 M NaCl solution by ac impedance measurements (AIM) and Tafel polarization curves (TPC). The inhibition performance was studied by electrochemical and surface analysis techniques (FESEM-EDS, AFM, XRD), which revealed that high strength metallic film forms successfully after passivation applied on the surface in the chloride ions. The results showed that Zn-20 μm coating gave very low inhibition of MS corrosion in chloride solution (~45%), while MS coated with passivation process provided high-efficiency protection (~98%) to the surface. The film resistance (RLPR) obtained from the linear polarization method (LPM) was compatible with AIM method.

Journal

Protection of Metals and Physical Chemistry of Surfaces – Springer Journals

Published: Apr 1, 2023

Keywords: mild steel; Zn coated; corrosion; anti-corrosion coating; linear polarization; surface analysis

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