| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability for Emerging Technologies and Strategic Materials
|
| Presentation Title |
High-temperature Oxidation of Explosion Welded Tantalum-tungsten Alloy on Steel Substrate as a Potential Technique for Recycling |
| Author(s) |
Akanksha Gupta, Brajendra Mishra |
| On-Site Speaker (Planned) |
Akanksha Gupta |
| Abstract Scope |
In recent years, tantalum is being increasingly researched as a potential coating material on steel substrate for application in gun barrels. This study is focused on a potential recycling route of such composite material at its end of life. High-temperature oxidation is studied as a potential route for recycling of tantalum alloy explosion-welded on steel. The oxidation tests are carried out in box furnace between 500-1000C. Oxidation kinetics was studied by measuring weight gain per unit area with change in temperature and time. The microstructural change is analysed using scanning electron microscopy, and structural change is analysed using X-ray diffractometer. Moreover, a comparative oxidation study is carried out on samples- Tantalum cold-sprayed on 4130 steel and Tantalum cold-sprayed on A36 steel. This is used to analyse the effect of coating, substrate and deposition technique on oxidation of tantalum coated steel. Some reuse opportunities of recovered tantalum oxide will be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Sustainability, Composites |