Corrosion Resistance of Electrodeposited Layers using a Zn-Ni Electrolyte Impregnated with Tri-, Tetra-, and Pentavalent Elements

This paper describes the obtaining of an electrodeposited composite layer by enriching the Zn-Ni alkaline electrolyte with tri-, tetra- and pentavalent elements. The aim was to obtain a system of oxides of type n and p on the surface of a sample, after exposing to a corrosive environment that would block the electric charge transport. Measurements of the open-circuit potential, potentiodynamic polarization and the electrochemical impedance spectrum, shown that for a certain proportion of the enriching elements, the corrosion current is much lowered. (C) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc/nd/4.0/) Peer-review under responsibility of the scientific committee of the 13th International Conference Interdisciplinarity in Engineering.