| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
2024 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-72: Microstructural Aspects and Mechanical Characterization of Laser Powder Bed Fusion Processed C103 |
| Author(s) |
Advika Chesetti |
| On-Site Speaker (Planned) |
Advika Chesetti |
| Abstract Scope |
Refractory metals are attractive candidates for high temperature structural applications, and with the advent of additive manufacturing (AM) fabrication of refractory metals and alloys via fusion-based approach has become feasible due to some inherent advantages with the processing methods such as high temperatures and cooling rates, and inert or vacuum environments. In this study, C103 (Nb-10Hf-1Ti wt%) builds were printed using the laser powder bed fusion technique. The Taguchi method was employed to use the vast space of process parameters for build optimization. The differences in microstructures and their effect on the mechanical properties were assessed in both the deposited and stress-relieved conditions. It was observed that the LPBF C103 was significantly strengthened, whereas the tensile strength in stress-relieved condition dropped significantly with improved ductility and strain hardenability. The dislocation substructures were characterized using ECCI. In addition, the Hf and O distribution at nanoscale has also been characterized by APT. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |