| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
A-85: Directed Energy Deposition of Niobium and Related Alloys |
| Author(s) |
Sucharita Banerjee, Advika Chesetti, Mohan Sai Kiran Kumar Yadav Nartu, Venkata Mani Krishna Karri, Sameehan Joshi, Eric Taleff, Narendra Dahotre, Rajarshi Banerjee |
| On-Site Speaker (Planned) |
Sucharita Banerjee |
| Abstract Scope |
Despite substantial interest in the additive manufacturing (AM) of refractory metals and alloys, data from experimental investigations in this field remain quite limited. This study presents new data on specimens of commercial-purity Nb and the Nb-based alloy C103 produced using laser-engineered net shaping (LENS), a directed energy deposition process that uses blown powders. Process parameters that directly impact the input energy density, such as laser power and scanning speed, were varied to measure their influences on the microstructure and microhardness of LENS deposits. The degree of porosity and the size, morphology, and aspect ratio of grains were measured and analyzed as a function of the process parameters. Details of the substructure within the grains, such as subgrain boundaries, were also investigated. The tensile properties of selected specimen builds were measured. The results of these experiments and analyses will be discussed and rationalized in this presentation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |