| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Functional and Structural Thin Films and Coatings
|
| Presentation Title |
Studying Effects of Frequency on ZrTiO4/ZrO2 Nanocomposite Coatings on Ti–6Al–4V Alloys Produced by Plasma Electrolytic oxidation (PEO) Process |
| Author(s) |
Navid Attarzadeh, Elham Nikoomanzari, Kazem Babaei, Arash Fattah-alhosseini |
| On-Site Speaker (Planned) |
Navid Attarzadeh |
| Abstract Scope |
In the present work, effects of three frequencies of 100, 1000 and 2000 Hz during the PEO method on the properties of ceramic coatings were evaluated. Coatings were produced on Ti-6Al-4V alloys using a solution containing 12 g/l Na3PO4 and 3 g/l nanoparticles of ZrO2. For this purpose, the microstructure, chemical compositions, wettability, surface roughness and corrosion resistance of coatings were studied. X-ray diffraction analysis (XRD) showed that all coatings were composed of ZrO2 and ZrTiO4 phases. Microstructural studies using scanning electron microscopy (SEM) indicated that the size of porosity, thickness and surface roughness of coatings decreased by rising frequencies. We studied corrosion performance of coatings at a 3.5% NaCl solution using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. We finally understood by increasing the wetting angle of the surface through producing coatings at higher frequencies, corrosion resistance could be modified. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Surface Modification and Coatings, Titanium, Ceramics |