| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
K-6: Solid Phase Recycling and Upcycling: Direct Extrusion High Strength Aluminum From AA 6063 Chips |
| Author(s) |
Xiao Li, Tianhao Wang, Tingkun Liu, Xiang Wang, Jorge F Dos Santos |
| On-Site Speaker (Planned) |
Xiao Li |
| Abstract Scope |
Traditional recycling and manufacturing processes typically involve multiple steps such as high-temperature melting and post-forming, which consume considerable energy. Also, the properties of recycled materials are usually degraded compared to raw materials. Solid phase recycling and upcycling is an emerging technology that provides a low-energy way to recycle aluminum and directly extrude high-performance products. It saves energy by eliminating melting and combining consolidation, alloying, and extrusion into a single step. Furthermore, the material properties can be adjusted by tuning the chemical composition and modifying the microstructure. We used friction extrusion to upcycle AA6063 machining chips into 27 7xxx-series aluminum rods (including AA7075) with different chemical compositions by introducing different amounts of Copper, Zinc, and Magnesium additives. After T6 heat treatment, the recycled-to-7075 rod achieved the same hardness as standard AA7075. The microstructure of the upcycled material was revealed by phase identification. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Shaping and Forming, Recycling and Secondary Recovery |