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5 articles for “Zn–Ni alloy”
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Tailoring Electrolytic Deposition of Zn-Ni Alloys for Superior Corrosion Resistance in Harsh Environments
Abstract: Since Zn–Ni alloy coatings are more resistant to corrosion than pure zinc coatings, they are being researched extensively. In this study, Zn–Ni alloy coatings electrolytically deposited from an acidic sulfate bath are investigated. The study looks into how the microstructure, phase composition, and corrosion resistance of the coatings are affected by deposition factors like pH, current density, and electrolyte composition. X-ray diffraction (XRD), potentiodynamic polarization, and scanning electron microscopy (SEM) …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 1, 2025 Read article
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Production of Compositionally Modulated Nanolayer Zn–Ni Alloy Coatings and Their Corrosion Behaviours
Abstract: Compositionally modulated nanolayer alloy (CNA) coatings of Zn–Ni having alternatively the same compositions have been developed galvanostatically on mild steel from single bath technique (SBT) using square current pulses. Sulphanilic acid and citric acid (CA) were used as additives. Modulation in the composition of alloys were introduced by passing a different switched cathode current densities (SCCD’S) using sophisticated power sources. Variety of CNA coatings was developed under different conditions of …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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Electrolytic Deposition of Zn–Ni Alloy from Acidic Sulphate Bath and Their Characterization
Abstract: A bath containing ZnSO4.7H2O, NiSO4.7H2O, thiamine hydrochloride (THC) and citric acid (CA) has been proposed. Bright Zn–Ni alloy coatings were developed galvanostatically onto mild steel (MS) and their corrosion resistance and other physical properties were studied. THC was found to improve the brightness and homogeneity of the deposit. The dependency of bath composition, current density (c.d.), pH and temperature, agitation on wt.% Ni were tested. Deposition was carried out under …
Published in International Journal of Chemical Engineering and Processing · Vol. 2, Issue 2, 2016 · pp. 19–32 Read article
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Effect of TiO2 on HER Activity of Electrodeposited Zn–Ni Coatings
Abstract: This paper demonstrates the improved electrocatalytic behavior of Zn–Ni alloy coatings for alkaline hydrogen evolution reaction (HER), due to addition of TiO2 nanoparticles into the bath. Zn–Ni alloy coatings have been electrodeposited galvanostatically on copper, with wide compositional range (2.31–7.91 wt. % of Zn) at different current densities (c.d.) between 2.0 and 5.0 A dm-2. The electrocatalytic behaviors of all coatings have been studied for alkaline HER in 1.0 M …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article
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CORROSION RESISTANCE OF BINARY AND TERNARY ALLOY COATINGS FROM ACID SULPHATE BATH
Abstract: Electroplating of three binary (Zn-Ni, Zn-Co and Zn-Fe) and two ternary (Zn-Ni-Co and Zn-Co-Fe) alloy coatings were developed onto mild steel substrate using 2-((4-chlorophenyl) amino)-1-(6-methyl-1H-pyrazolo [3, 4 - b] quinolin-1-yl) ethanone (CME) as an additive. Hull cell technique was used to optimize the bath constituents and operating conditions. Corrosion rate of binary and ternary alloy coatings were determined using potentiodynamic polarization method. Corrosion rate of ternary Zn-Ni-Co alloy coating was …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 2, 2020 · pp. 12–16 Read article