About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Process-Microstructure Comparison of C103 Wire DED via IR and Blue Laser. |
| Author(s) |
Nicolene Gould, Somayeh Pasebani |
| On-Site Speaker (Planned) |
Nicolene Gould |
| Abstract Scope |
Additively manufactured Niobium alloy C103 research focused exclusively on powder-based technologies like electron beam powder bed fusion, laser powder bed fusion, and laser powder – direct energy deposition. Laser-based C103 powder AM research only explored process-microstructure-property relationships of prints made by infrared (IR) lasers with wavelengths ranging from 980 to 1070 nm. Niobium absorption is dependent on laser energy density and wavelength, where higher absorption is observed for smaller wavelengths at low laser energy densities. In this study IR (λ=980 nm) and Blue (λ=450 nm) laser direct energy deposition systems were used to produce single-track, multi-track, and monolith structures with 0.035” diameter C103 wire. Deposition energy density effect on microstructure will be presented for both wavelengths. Process parameters evaluated were laser powder, scanning speed, and substrate heating. Substrate heating was determined to be a key parameter to mitigate solidification cracking and to have adequate fusion between deposition layers. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, |