Corrosion resistance and protective properties of chromium coatings electrodeposited from an electrolyte based on deep eutectic solvent
| Autor: | Vyacheslav Protsenko, Lina Bobrova, Felix Danilov, Anna Kityk, Sergiy Korniy |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Metallurgy chemistry.chemical_element 02 engineering and technology Electrolyte Characterization and properties 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Deep eutectic solvent Corrosion chemistry.chemical_compound Chromium chemistry General Materials Science 0210 nano-technology |
| Popis: | The paper deals with the corrosion resistance and protective properties of chromium coatings electrodeposited from an electrolyte based on deep eutectic solvent, a new generation of ionic liquids. The electroplating bath contained chromium (III) chloride, choline chloride and some extra water. Chromium layers with a thickness of 2.5, 5, 10, 15 and 20 μm were deposited on mild steel samples and their corrosion and electrochemical behavior was determined by voltammetry method and electrochemical impedance spectroscopy technique. It was stated that the highest resistance to corrosion damage of the Cr layer and mild steel substrate is achieved when the thickness of deposit is about 5 μm. At smaller or greater thickness, the chromium electrodeposits become more defective, and a larger number of microcracks and micropores appear; as a result, the corrosion stability and protective characteristics diminish. |
| Databáze: | OpenAIRE |
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