Evolution processes of the corrosion behavior and structural characteristics of plasma electrolytic oxidation coatings on AZ31 magnesium alloy
| Autor: | Changhong Guo, Philip Nash, Zhiquan Huang, Dejiu Shen, Dong Chen, Sheng-xue Yu, Dalong Li, Guirong Jiang, Ye-kang Wu, Guo-rui Wu, Yi Zhang, Ruiqiang Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Scanning electron microscope Metallurgy General Physics and Astronomy 02 engineering and technology Surfaces and Interfaces General Chemistry engineering.material Plasma electrolytic oxidation 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Corrosion Dielectric spectroscopy Coating Chemical engineering engineering Magnesium alloy 0210 nano-technology Polarization (electrochemistry) |
| Zdroj: | Applied Surface Science. 434:326-335 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2017.09.232 |
| Popis: | Evolution processes of the corrosion behavior and structural characteristics of the plasma electrolytic oxidation (PEO) coated AZ31 magnesium alloy were investigated by using scanning electron microscope (SEM) equipped with energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), potentio-dynamic polarization curves and electrochemical impedance spectroscopy (EIS) measurements. Detached coating samples were fabricated by an electrochemical method and more details of the internal micro-structure of coatings were clearly observed on the fractured cross-section morphologies of the samples compared to general polished cross-section morphologies. Evolution mechanisms of the coating corrosion behavior in relation to the evolution of micro-structural characteristics were discussed in detail. |
| Databáze: | OpenAIRE |
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