Effect of Electrolysis Conditions on the Composition and Microhardness of Ternary Cobalt Alloy Coatings
| Autor: | V. O. Proskurina, Nikolay Sakhnenko, T. A. Nenastina, Marina Ved |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy Alloy chemistry.chemical_element 02 engineering and technology Electrolyte engineering.material Industrial and Manufacturing Engineering law.invention law 0202 electrical engineering electronic engineering information engineering Electrolysis Metallurgy technology industry and agriculture Refractory metals Surfaces and Interfaces equipment and supplies 021001 nanoscience & nanotechnology Surfaces Coatings and Films chemistry Molybdenum engineering 0210 nano-technology Ternary operation Current density Cobalt |
| Zdroj: | Surface Engineering and Applied Electrochemistry. 57:59-66 |
| ISSN: | 1934-8002 1068-3755 |
| DOI: | 10.3103/s1068375521010099 |
| Popis: | The deposition of Co–W(Mo)–Zr ternary alloys on a copper substrate from pyrophosphate–citrate electrolytes in a pulsed mode has been studied. The effect of temperature, electrolyte pH, and current density on the composition, surface morphology, and current efficiency of ternary electrolytic cobalt alloys with refractory metals has been studied. The resulting coatings have a crack-free uniformly developed surface, which provides a fairly high and reproducible microhardness. It has been found that the size of the globules on the alloy surface decreases with an increase in the current density to 10 A/dm2. It has been revealed that an increase in temperature favorably affects the current efficiency and microhardness of Co–W–Zr coatings. The modes of electrosynthesis of cobalt–tungsten(molybdenum)–zirconium alloy coatings with a desired level of surface development and microhardness have been substantiated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink