| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Nb-1Zr L-PBF In-situ Alloying and Elevated Temperature Mechanical Performance |
| Author(s) |
Eric Brizes, Justin Milner |
| On-Site Speaker (Planned) |
Eric Brizes |
| Abstract Scope |
Nb-1Zr is a readily-fabricable, dispersion-strengthened niobium alloy with improved elevated temperature properties compared to commercially pure niobium. This moderate strength niobium alloy is desirable in thermal management systems for fission power and propulsion applications; however, pre-alloyed spherical feedstock is generally unavailable. Laser powder bed fusion (L-PBF) in-situ alloying of a Nb-1Zr chemistry was performed using a pure niobium feedstock coated with 1 wt% of zirconium-based ceramic compound nano-powders. The additively manufactured material was mechanically tested at elevated temperatures in a controlled environment in the as-built and post hot isostatic pressing (HIP) conditions. For comparison, traditionally manufactured wrought feedstock was also tested under identical conditions. Following examination of the in-situ alloying feasibility and determination of the Zr-compound with the best mechanical performance, a demonstration component was printed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Additive Manufacturing, Mechanical Properties |