About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Laser Additive Manufacturing of Nickel Matrix Composites: DED-LB/w With Cored-Wire and DED-LB/p With Mixed Powder |
| Author(s) |
Yuze Huang |
| On-Site Speaker (Planned) |
Yuze Huang |
| Abstract Scope |
Nickel-based metal matrix composites (NMMCs) are widely used for corrosion-resistant coatings and repairs in offshore drilling and hydropower applications. This study presents preliminary results on laser additive manufacturing of NMMCs reinforced with ceramic particles, using both laser wire directed energy deposition (DED-LB/w) and laser powder directed energy deposition (DED-LB/p). The microstructure, dissolution characteristics of the ceramic particles, as well as the microhardness of the builds were systematically investigated. Findings show that the reinforced particle behaviour, including dissolution and distribution, is governed by the specific energy density. Minimal dissolution and improved homogeneity were achieved with optimised energy density, likely due to Marangoni convection. DED-LB/w using cored wire also demonstrated a higher build rate and fewer coating defects (e.g., pores and cracks) compared to DED-LB/p. These insights highlight critical process–microstructure relationships and the potential advantages of wire-based deposition for efficient, defect-minimised manufacturing of NMMCs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Surface Modification and Coatings, Composites |