| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
High Temperature Mechanical Properties of Laser Powder Bed Fusion Processed Nb-Based C103 Alloy |
| Author(s) |
Sucharita Banerjee, Advika Chesseti, Tirthesh Ingle, Monica Martinez, 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 refractory alloy primarily used for high temperature aerospace applications. While C103 is produced by wrought and powder processing, additive manufacturing of this alloy is recently attracting much attention. The current study focuses on comparing and contrasting the high temperature (up to 1650°C) mechanical properties of conventionally wrought processed C103 with material processed by laser powder-bed fusion (LPBF). LPBF processed C103 develops a complex microstructure, comprised of a fine-scale solidification cellular structure overlaid with a dense dislocation network outlining cell boundaries within the primary grains. When tested at 1650°C and a true-strain rate of 1e-4/s, both the hot isostatically pressed (HIP'ed) LPBF and wrought samples showed similar flow stress values, but the LPBF + HIP’ed sample exhibited a much lower elongation and limited strain hardening behavior. Flow stress was higher at the faster true-strain rate of 1e-3/s, but elongation was similar. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |