Corrosion and Properties of Developed Ni-CeO2Co-deposited on Mild Steel at Varying Current Densities

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Abstract

Rare earth Nickel composite film was attempted on mild steel surface by DC electrodeposition for improvement of corrosion resistance and morphological structure. A conventional Watts bath was utilised for film fabrication and rare earth cerium oxide particle reinforcement were made at 5g/l CeO2addition to the plating bath. The effect of varying current density (1.0-2.0 A/dm2) on coating morphology was studied by a Scanning Electron Microscope (SEM) and Linear polarization technique for corrosion resistance studied in 3.65% simulated saline environment (Cl−nature). Coatings exhibited improved corrosion resistance compared to pure Nickel coatings. Increase in current density was observed to result in improved resistance to corrosion. SEM/EDX results revealed presence of Ce metal in coating owing to the inclusion of CeO2particles in plating bath and evidence of particle agglomeration.

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Phala, M. F., Popoola, A. P. I., & Fayomi, O. S. I. (2017). Corrosion and Properties of Developed Ni-CeO2Co-deposited on Mild Steel at Varying Current Densities. Procedia Manufacturing, 7, 543–548. https://doi.org/10.1016/j.promfg.2016.12.068

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