About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Lightweight Alloy Matrix Composites
|
| Presentation Title |
Development of High Silicon Alloys for Additive Manufacturing |
| Author(s) |
Eivind Johannes Ovrelid, Jan Ove Odden, Kai Zhang, Yijiang Xu, Olav Berg Åsebø, Martha Indriyati |
| On-Site Speaker (Planned) |
Eivind Johannes Ovrelid |
| Abstract Scope |
Hypereutectic aluminum-silicon (Al-Si) alloys offer excellent wear resistance and thermal stability, making them attractive for high-performance applications. However, their inherent brittleness and poor printability have limited their adoption in additive manufacturing (AM). This study focuses on enhancing the mechanical properties of high-silicon Al-Si alloys tailored for laser powder bed fusion (LPBF). A high-throughput experimental approach, supported by thermodynamic modeling using FactSage, was employed to explore compositional modifications. Key strategies included the addition of primary particle refiners and alloying elements that promote the formation of intermetallic silicon particles, aiming to refine the microstructure and mitigate brittleness. The resulting alloys demonstrated improved mechanical performance and processability, highlighting the potential of compositionally engineered hypereutectic Al-Si systems for AM. These findings contribute to the development of robust, high-silicon alloys suitable for demanding applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |