About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-79: Effect of Build Orientation and Heat Treatment on the High-Temperature Tensile Properties of LPBF 14YWT ODS Steel |
| Author(s) |
Sourabh Saptarshi, Chris Rock, Iver Anderson, Djamel Kaoumi, Timothy Horn |
| On-Site Speaker (Planned) |
Sourabh Saptarshi |
| Abstract Scope |
The oxide dispersion-strengthened (ODS) ferritic steel 14YWT is a material for advanced nuclear due to its high strength retention and radiation tolerance at elevated temperatures, arising from a high number density of stable Y–Ti–O nano-oxides. While extensive data exist for conventionally processed 14YWT, its behavior when fabricated by additive manufacturing remains largely unexplored. Laser powder bed fusion (LPBF) introduces rapid solidification and strong thermal gradients that generate anisotropic microstructures. Available AM ODS literature largely focuses on simplified model alloys, leaving a critical gap in understanding for this alloy. In this work, a Zr modified 14YWT alloy is fabricated via LPBF to investigate the combined effects of AM processing, build orientation, and post-build heat treatment on high temperature tensile behavior. Orientation resolved testing in as built and annealed conditions provides insight into AM induced anisotropy and microstructural recovery, addressing a key barrier to qualifying AM 14YWT for extreme applications. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |