Corrosion Behavior in Acid and Alkaline Media of Nickel Coatings Deposited at Room Temperature |
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| Authors: | I. V. Makarova D. S. Kharitonov I. B. Dobryden’ A. A. Chernik |
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| Affiliation: | 1.Belarussian State Technological University,Minsk,Republic of Belarus;2.KTH Royal Institute of Technology, Surface and Corrosion Science Division,Stockholm,Sweden |
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| Abstract: | Impedance spectroscopy, chronovoltammetry, chronopotentiometry, scanning electron microscopy, and atomic-force microscopy were used to examine the corrosion behavior in acid and alkaline media and the morphology of nickel coatings electrodeposited from acetate, tartrate, and isobutyrate electrolytes at a temperature of 20–25°C. Models describing the nickel corrosion processes in H2SO4 and NaOH solutions were suggested. It was found that nickel coatings formed from isobutyrate electrolytes have the highest corrosion resistance. |
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