| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2024
|
| Presentation Title |
A Succinct Method to Recycle WE43 Mg Alloys – From Wasted Chips to Consolidated Billets |
| Author(s) |
Xingjian Zhao, Dikai Guan |
| On-Site Speaker (Planned) |
Dikai Guan |
| Abstract Scope |
Spark plasma sintering (SPS) and friction stir processing (FSP) were used to recycle waste WE43 Mg alloy turning them into consolidated billets. Billets were firstly produced from machining chips using SPS. Metallurgical bonding between chips were achieved during the process, yet large second phase network and pores were observed. Then FSP was further applied to refine microstructures and remove pores confirmed by using electron backscattered diffraction (EBSD) and 3D X-ray computed tomography (3D XCT). Most of the large second phases were refined to 100 nm. The average grain size was reduced from around 30 μm to around 1-3 μm. The hardness of FSPed material reached HV0.5=89, which is comparable against commercial extruded bar (T5, HV0.5=93). The mechanical properties of FSPed material were also tested and evaluated using tension test. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Recycling and Secondary Recovery, Characterization |