About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Microstructures and high temperature plastic flow of additively manufactured and wrought C103 Nb-based alloy |
| Author(s) |
Sucharita Banerjee, Advika Chesseti, Thomas Bennett, Rajarshi Banerjee, Narendra Dahotre, Eric Taleff |
| On-Site Speaker (Planned) |
Sucharita Banerjee |
| Abstract Scope |
C103 (Nb-10Hf-1Ti wt.%) is a Nb-based alloy used in high temperature environments especially important for aerospace applications. While C103 components have been typically manufactured by thermo-mechanical processing of ingots, there is substantial interest in powder processing of this alloy for the HIPing and additive manufacturing of near-net shape components. This study compares the high temperature mechanical properties of wrought and additively manufactured C103 materials. Additively manufactured (AM) C103 was produced by laser powder bed fusion followed by hot isostatic pressing. Strain rate change tests were conducted on specimens of both wrought and AM C103 at 1650 °C. These materials exhibit distinct microstructures and mechanical behaviors. The AM C103 presents a microstructure containing a fine dispersion of hafnium oxide particles not present in the wrought material. Wrought C103 presents the most pronounced flow transient’s following strain rate changes. These differences in microstructure and plastic flow behavior will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |