| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
WC-Based Functionally Graded Materials Fabricated by Laser Powder Directed Energy Deposition |
| Author(s) |
Eleonora Santecchia, Gabriele Grima, Alberto Santoni, Maria Laura Gatto, Marcello Cabibbo, Riccardo Luigi Di Mattia, Vincenzo Foti, Stefano Spigarelli |
| On-Site Speaker (Planned) |
Eleonora Santecchia |
| Abstract Scope |
Laser powder Directed Energy Deposition (LP-DED) is an additive manufacturing technology able to maximize material efficiency and to allow in-situ mixing of different powders. Functionally graded materials including refractory materials are one of the most interesting points of this technology and they can be exploited to reach mechanical properties (i.e. hardness) on top of a deposit which totally differ from the first deposited layers. The aim of this research is to present the results of a work performed with a LP-DED machine involving WC (mixed with Cobalt) as the leading material and a Nickel-based alloy as the base material. Following different approaches to maximize adhesion to the substrate and to minimize the formation of cracks, different samples were fabricated and subjected to microstructural characterization using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and microhardness tests. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Characterization |