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Nickel partitioning in ZnNi coatings (Ni less than 4 wt.%) and its effect on the coating corrosion behaviour

Jyotheender, KS and Mathai, M and Makineni, SK and Srivastava, C (2023) Nickel partitioning in ZnNi coatings (Ni less than 4 wt.%) and its effect on the coating corrosion behaviour. In: Philosophical Magazine .

Full text not available from this repository.
Official URL: https://doi.org/10.1080/14786435.2023.2231355

Abstract

ZnNi alloy coatings with low Ni content (1–4 wt.% Ni) were electrodeposited over mild steel. Ni addition changed the coating morphology from faceted to hillock, decreased the crystallite size, and shifted the basal plane texture to higher energy (01 (Formula presented.) 1) texture. Zn-1.5 wt.% Ni coating exhibited significantly improved corrosion resistance, even better than the pristine Zn coating. The corrosion resistance properties, however, degraded considerably as the Ni content increased (2.7 and 3.7 wt% Ni). The high corrosion resistance of the Zn-1.5 wt.% Ni coatings was due to the presence of nearly basal texture, low coating strain and evolution of stable γ-phase in the Zn matrix. The corrosion rate for higher Ni addition increased due to high energy surface texture and higher coating strain.

Item Type: Journal Article
Publication: Philosophical Magazine
Publisher: Taylor and Francis Ltd.
Additional Information: The copyright for this article belongs to the Taylor and Francis Ltd.
Keywords: atom probe tomography; corrosion; microstructure; ZnNi coating
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Others
Date Deposited: 24 Jul 2023 05:35
Last Modified: 24 Jul 2023 05:35
URI: https://eprints.iisc.ac.in/id/eprint/82618

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