Corrosion Behavior of Ni–Fe–Mo Deposits Obtained under Different Electrodeposition Conditions
| Autor: | B. Deniz Karahan, Reyhan Solmaz |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology engineering.material Tafel 01 natural sciences Corrosion Electrodeposition Coating 0103 physical sciences General Materials Science Ni–Fe–Mo Alloys 010302 applied physics Tafel equation Mechanical Engineering Non-blocking I/O 021001 nanoscience & nanotechnology Copper Dielectric spectroscopy chemistry Chemical engineering Mechanics of Materials Corrosion Resistance engineering Cyclic voltammetry Cyclic Voltammetry 0210 nano-technology Layer (electronics) |
| Zdroj: | Journal of Materials Engineering and Performance. 30:5593-5602 |
| ISSN: | 1544-1024 1059-9495 |
| DOI: | 10.1007/s11665-021-05805-1 |
| Popis: | Ternary Ni-Fe-Mo coatings have been proposed for anti-corrosion applications to replace chromium coating. To analyze the effects of deposition current and duration six different Ni-Fe-Mo films have been electrodeposited on copper foils. Their morphologies, structures, and chemical compositions of the films have been characterized. Potentiodynamic polarization is applied on each coating and electrochemical impedance spectroscopy is applied to discuss their corrosion resistances. Ni-Fe-Mo film that is produced at the lowest current density (5 mA.cm(-2)) for 5 min. exhibits a more positive corrosion potential and higher charge transfer resistance. To shed some lights on aging mechanism, the film has been aged for 70 days. The enhanced protective properties of the film is attributed to its fine, crack free morphology with high Mo content. The existences of Fe2O3, MoO2, MoO3, and NiO in the passive layer substantiate the improved barrier protection ability of the film. |
| Databáze: | OpenAIRE |
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