About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanocomposite Materials: Innovations in Design, Fabrication, and Applications
|
| Presentation Title |
Forming core-shell structure nanoparticles in nanostructured aluminum alloys |
| Author(s) |
Xiaoming Wang |
| On-Site Speaker (Planned) |
Xiaoming Wang |
| Abstract Scope |
Aluminum alloy powders containing TiC ceramic reinforcing particles are additively manufactured (AM) to combat the strength-ductility trade-off. Laser powder bed fusion (LPBF), acting as an external field, generates a complex flow pattern and a high cooling rate in a high temperature melt pool, promoting the nucleation of core-shell nanoparticles and subsequently aluminum grains in solidification. The presence of heterogeneous nucleation sites under a supercooling solidification condition refines the aluminum grains to nanometers with ubiquitous reinforcing particles and a cell structure in the matrices. The particles arrest slipping dislocations in deformation increasing the strength and ductility simultaneously. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Composites |