About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Designing Recycled Al-Alloys with High-Throughput Scheil solidification |
Author(s) |
Sunyong Kwon, Gerald L Knapp, Ying Yang, Alex J Plotkowski |
On-Site Speaker (Planned) |
Sunyong Kwon |
Abstract Scope |
Iron and silicon are the primary impurity elements in recycled aluminum, which significantly impact the ductility of recycled Al-alloys. These impurities lead to the formation of large-scale Fe-containing intermetallic compounds during solidification, thereby reducing ductility. Here, we introduce a framework based on high-throughput Scheil-Gulliver simulations to identify alloy chemistries with a reduced amount of primary intermetallic compounds. We applied this framework to design new Al-Mg-alloys with improved ductility. We present the thermodynamic analyses of the identified Al-Mg-alloys, focusing on phase fraction, solidification range, and oxidation potentials during casting. In addition, the microstructure analyses and mechanical properties of the as-cast alloys will be presented. The validity of the assumptions used in the framework will be discussed by comparing them with experimental observations on microstructure and mechanical properties. This work was sponsored by the DOE Vehicle Technology Office’s Lightweight Metal Core Program. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Computational Materials Science & Engineering, ICME |