| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Laser Powder Bed Fusion of C103 and Refractory-Based Alloys - Material Development Using Ultrasonic Atomization |
| Author(s) |
Jakub Ciftci, Tomasz Choma, Bartosz Morończyk, Łukasz Żrodowski |
| On-Site Speaker (Planned) |
Jakub Ciftci |
| Abstract Scope |
Refractories are strategic metals for hypersonic applications. Laser powder bed fusion by using a highly focused beam to melt powders, allows the processing of refractory alloys into complex parts with superior properties thanks to unique processing conditions. Typically, such powders are produced by plasma atomization or a two-step process of spray drying and spheroidization. The first approach requires a specific feedstock form, and the other often produces powder with internal porosity, suppressing the development of high-quality materials on a laboratory scale. The presentation will focus on niobium-based C103 alloy as a benchmark for other alloys developed using ultrasonic atomization. Case studies of the utilization of substrate preheating, scanning strategies, and ultrasonic atomization will be presented to overcome the challenges of processing the refractory-based alloys in LPBF and to shape their texture and properties. The progress of ultrasonic atomization can significantly enhance novel refractory alloy development, enabling broader defense applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |