About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Alloy Design for Circularity: Mechanical and Microstructural Evaluation of Secondary AlSi8ZnMn HPDC Alloy with Elevated Fe and Cu content |
| Author(s) |
Alice Siemund, Peer Decker, Tobias Beyer, Andreas Kleine |
| On-Site Speaker (Planned) |
Alice Siemund |
| Abstract Scope |
This study investigates the naturally hard aluminum die-casting alloy trimal-38 of the type AlSi8ZnMn, developed for structural components in the automotive sector. The objective is to validate the potential of a secondary based version containing elevated levels of the critical elements iron (0.35 wt%) and copper (0.15 wt%). Building on insights from previous laboratory-scale gravity casting experiments, the process was upscaled to high pressure die casting to assess the transferability of the findings. Mechanical properties were characterized through tensile testing, while complementary plate bending tests, provide detailed insights into deformation behavior. Thermodynamic calculations support the interpretation of microstructural evolution, which was further examined through qualitative microstructural analyses. Potential concentration ranges for iron and copper are discussed with regard to their influence on microstructure and mechanical properties, and their suitability for a secondary-based production is being evaluated. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Recycling and Secondary Recovery, Mechanical Properties, Characterization |