| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Heterostructured and Gradient Materials (HGM VI): Principle, Processing and Properties
|
| Presentation Title |
Designing Scalable Metallic Composites by Leveraging Liquid Phase Separation in Additive Manufacturing |
| Author(s) |
Nabila Ali, Yuheng Nie, Mia Mikolajczak, Marie Charpagne |
| On-Site Speaker (Planned) |
Nabila Ali |
| Abstract Scope |
Immiscible metallic nano-composites exhibit promising properties like enhanced strength, thermal conductivity, and damage tolerance. However, the inherent miscibility gap in the liquid phase precludes casting and forging, necessitating solid-state processing methods such as high-energy mixing or powder sintering, which offer limited control over microstructure and associated properties. Here we employ additive manufacturing (AM) and leverage the liquid-liquid miscibility gap as an asset, enabling the synthesis of scalable nano-architected immiscible alloys. By co-optimizing alloy composition and printing parameters, we synthesize fully dense steel-copper composites with highly tunable multi-scale microstructure. Using electron microscopy, we determine the formation sequence of the microstructure as well as how it controls strength, ductility, and thermal conductivity These results underscore the potential of additive manufacturing to surpass the constraints of traditional methods, paving the way to designing scalable hetero-structured metallic nano-composites using additive manufacturing. |
| Proceedings Inclusion? |
Planned: |