Corrosion behavior and protective film constitution of AlNiCoFeCu and AlCrNiCoFeCu high entropy alloy coatings.

Aliyu, A and Srivastava, C (2021) Corrosion behavior and protective film constitution of AlNiCoFeCu and AlCrNiCoFeCu high entropy alloy coatings. In: Surfaces and Interfaces, 27 .

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Abstract

Corrosion behavior and protective film constitution of electrodeposited AlNiCoFeCu and AlCrNiCoFeCu high entropy alloy (HEA) coatings were investigated. The corrosion parameters determined using the potentiodynamic polarization and weight loss measurement techniques showed that the corrosion resistance of Cr-containing AlCrNiCoFeCu HEA coating is higher than that of AlNiCoFeCu HEA coating in 3.5 wt.% NaCl solution. The surface analysis showed that the Cr in AlCrNiCoFeCu HEA coating enhanced the formation of metallic oxides film, over the coating surface, that reduced ionic diffusion and improved the coating corrosion resistance of AlCrNiCoFeCu HEA when compared to the AlNiCoFeCu HEA coating.

Item Type:	Journal Article
Publication:	Surfaces and Interfaces
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to Elsevier B.V.
Keywords:	Corrosion rate; High entropy alloy coatings; Phase constitution; Potentiodynamic polarization; X-ray diffraction; X-ray photoelectron spectroscopy
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Apr 2023 07:06
Last Modified:	18 Apr 2023 07:06
URI:	https://eprints.iisc.ac.in/id/eprint/80648

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