ELECTROCHEMICAL STUDIES OF ZINC DEPOSITION CONDITIONS

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Sigma Mühendislik ve Fen Bilimleri Dergisi
Volume:37 Issue:4
ELECTROCHEMICAL STUDIES OF ZINC DEPOSITION CONDITIONS

ELECTROCHEMICAL STUDIES OF ZINC DEPOSITION CONDITIONS

Authors : Hayette FAID

Pages : 1262-1273

View : 37 | Download : 9

Publication Date : 2019-12-01

Article Type : Research Paper

Abstract :Zinc films are deposited on steel from sulphate bath using electrodeposition process. Cyclic voltammetry and chronoamperometry are used to study the effect of pH on zinc electrodeposition process and nucleation model respectively. Furthermore, potentiodynamic polarisation and electrochemical impedance spectroscopyare used to study corrosion behaviour of zinc films.The pH of the bath was controlled at 4, for decreasinghydrogen evolution reaction,and increasing current efficiency of the Zn deposition. The study of the influence of deposition potential on corrosion behaviour in 3.5% NaCl, solution indicated that Zn film obtained at -1.26V presented less corrosion current and bestcorrosion resistance.
Keywords : Zinc films, electrodeposition, deposition potential, corrosion resistance

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