| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2021
|
| Presentation Title |
Corrosion Behaviour of Shear Extruded Magnesium Alloy |
| Author(s) |
Vikrant Kumar Beura, Vineet V Joshi, Kiran N. Solanki |
| On-Site Speaker (Planned) |
Vikrant Kumar Beura |
| Abstract Scope |
Solid-state processing is an emerging technique to refine the microstructure promoting enhanced mechanical and corrosion properties in materials. To enhance the corrosion behaviour of magnesium alloy through these routes, in this work Mg-Al-Zn based magnesium alloy was processed through a novel solid-state process namely, shear assisted processing and extrusion (ShAPE). Post ShAPE processing, a microstructure with an equiaxed grain size distribution along with fragmented second phase particles was obtained. To understand the effect of obtained microstructure on the corrosion behaviour, potentiodynamic polarization and electrochemical impedance spectroscopy characterizations were performed. A noble pitting potential and reduced anodic dissolution kinetics in ShAPE processed sample were observed compared to as-received. To further support the electrochemical results post corrosion microstructural characterizations and x-ray photoelectron spectroscopy measurements were performed. Overall, a recrystallized microstructure with homogeneous grain size and second phase particle distribution have found to obtain better corrosion resistance in ShAPE processed magnesium alloy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Magnesium, Shaping and Forming |