Electrodeposition of High Entropy Alloy of Ni-Co-Cu-Mo-W from an Aqueous Bath
D. Ahmadkhaniha, J. Kruemmling, Caterina Zanella
Abstract
This study aimed to deposit high entropy alloy (HEA) coatings with five different elements, Ni, Co, Cu, Mo, and W, from a single aqueous bath. The influence of pH, current density, and complex agent on the composition of deposited coating was examined. It was shown that Mo and W were codeposited mainly with Ni and Co. pH had the most impact on the codeposition of reluctant elements like Mo and W, while current density had the minimum effect. The deposited coating had a metallic, dense, and nodular morphology with configurational entropy of around 1.6 R.
Topics & Concepts
AlloyAqueous solutionMaterials scienceMetalMetallurgyCurrent densityHigh entropy alloysCoatingElectroplatingChemistryPhysical chemistryComposite materialPhysicsLayer (electronics)Quantum mechanicsHigh Entropy Alloys StudiesHigh-Temperature Coating BehaviorsElectrodeposition and Electroless Coatings