| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
New Opportunities to Improve PBF-LB Processability and Performance of Materials by Functionalization of Powder Feedstock |
| Author(s) |
Riccardo Casati, Giorgia Lupi |
| On-Site Speaker (Planned) |
Riccardo Casati |
| Abstract Scope |
LPBF processability of certain alloys can pose significant challenges due to their susceptibility to hot-cracking, or high laser-reflectivity. Modification of the original chemical composition of powder by adding proper alloying elements is often necessary to produce crack-free structural parts. But this is not always a straightforward solution since it can cause gas atomization issues. Moreover, in some instances, only modification of particle surface is needed to improve processability, without significantly changing the overall chemical composition of powder. In this work, we functionalized Al alloy and Cu powders using electro-chemical, plasma, and mechanical methods. The surface of powder particles was decorated with thin coatings or discrete-particle dispersions to improve their processability. Powder was characterized and processed through LPBF to produce samples for microstructural, physical, and mechanical characterization. Our study provides valuable insights into how surface features can improve powder processability, and hopefully, it will inspire further innovations in this exciting field. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Additive Manufacturing, Powder Materials |