Morphology and Corrosion Behavior of Zn-Ni Layers Electrodeposited on Low Alloy Carbon Steel Substrate
- 30 June 2021
- journal article
- research article
- Published by International Information and Engineering Technology Association in Annales de Chimie - Science Des Matériaux
- Vol. 45 (3), 225-230
- https://doi.org/10.18280/acsm.450305
Abstract
The aim of this work is to improve the microstructure, the morphology, the mechanical and the corrosion behavior of Zn-Ni layers electrodeposited on low alloy carbon steel. Some factors such as the nickel concentration in the electrolyte, the electrolyte temperature and the current density are studied and optimized. The efficiency of the layers to protect the low alloy carbon steel against corrosion in HCl solution is also studied in this work. The electrodeposited Zn-Ni layers morphologies and microstructure were investigated by Scanning Electronic Microscopy (SEM) and X-ray diffraction (XRD) respectively. The best deposits of Zn-Ni layers are obtained with 50%-Ni in the electrolyte bath at a temperature of 40 degrees C and a current density of j = 3 A dm(-2). The XRD spectrum showed the coexistence of two phases: delta-phase (Ni3Zn22) and gamma-phase (Ni5Zn21), and a pyramidal morphology is detected by SEM. The lost mass method results showed that the corrosion rate tacked a steady state between 10 and 50% of Ni, and it increased with the increase of Ni amount in the electrolyte bath.Keywords
This publication has 16 references indexed in Scilit:
- Schinopsis lorentzii Extract As a Green Corrosion Inhibitor for Low Carbon Steel in 1 M HCl SolutionIndustrial & Engineering Chemistry Research, 2011
- Corrosion protection of low-carbon steel using exopolysaccharide coatings from Leuconostoc mesenteroidesBiotechnology Letters, 2011
- Electrodeposition of Zn–Ni, Zn–Fe and Zn–Ni–Fe alloysSurface and Coatings Technology, 2010
- Electrochemical deposition of zinc–nickel alloy coatings in a polyligand alkaline bathSurface and Coatings Technology, 2008
- Effect of electrodeposition conditions on the composition, microstructure, and corrosion resistance of Zn–Ni alloy coatingsSurface and Coatings Technology, 2008
- Characterization of thin Zn–Ni alloy coatings electrodeposited on low carbon steelApplied Surface Science, 2007
- Electrochemical studies of zinc–nickel codeposition in sulphate bathApplied Surface Science, 2005
- Electrochemical deposition and characterization of zinc-nickel alloys deposited by direct and reverse currentJournal of the Serbian Chemical Society, 2005
- Influence of structural factor on corrosion rate of functional Zn–Ni coatingsCrystal Engineering, 2002
- MORPHOLOGY AND PROPERTIES OF ELECTRODEPOSITED ZN-NI ALLOY COATINGS ON MILD STEELJournal of Mechanical Engineering, 1970