| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability in Cast Shop Technology: Joint Session with REWAS 2022
|
| Presentation Title |
Process-related Characterization of the Influence of the Die Design on the Microstructure and the Mechanical Properties of Profiles Made from Directly Recycled Hot Extruded EN AW-6060 Aluminum Chips |
| Author(s) |
Alexander Koch, Sarah Laskowski, Frank Walther |
| On-Site Speaker (Planned) |
Alexander Koch |
| Abstract Scope |
In times of climate change, the possibility of producing profiles by direct recycling of aluminum scrap represents a promising alternative to conventional remelting. A new, innovative process chain for direct recycling of aluminum chips consists of a pre-compaction process to consolidate the chips and finally a hot extrusion process to produce the profiles. Particular importance in the process is attached to the removal of oxide layers on the individual chips in order to enable adequate welding. Parameters like pressure and shear strain influence the quality of the interface and can be adapted by the extrusion ratio. Therefore, the defect structure of the profiles, determined by computed tomography, was shown to mainly depend on the extrusion ratio and significantly influence the fatigue life by up to one decade. The findings could be used to establish an extrusion ratio-dependent fracture mechanics-based model for the estimation of the fatigue properties. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Recycling and Secondary Recovery, |