| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Beyond on the Beam IV
|
| Presentation Title |
Solid State Additive Manufacturing of Oxide Dispersion Strengthened FeCrAl Alloy through Metal Extrusion Method |
| Author(s) |
Saumyadeep Jana, Zachary Kennedy, Amrita Lall, Michelle Fenn |
| On-Site Speaker (Planned) |
Saumyadeep Jana |
| Abstract Scope |
Metal additive manufacturing methods not relying upon melt solidification for densification are gaining interest, since they provide better control on microstructure, composition, and residual stress in fabricated components. Metal extrusion additive manufacturing (MEAM) is a solid-state additive manufacturing method that works on the principle of shaping, debinding, and sintering steps. Development of MEAM method for oxide dispersion strengthened (ODS) FeCrAl alloy has been carried out. FeCrAl alloys are a special class engineering alloys with bcc crystal structure and provide good high temperature strength and oxidation resistance. Incorporation of nano-sized reactive element oxide particles further improves oxidation resistance and creep strength. Our work demonstrated successful fabrication of polymer-bound FeCrAl filaments with 65% metal content by volume. Subsequently, composite FeCrAl filaments were used to print various test coupons that were used to develop effective binder removal methods and the high-temperature sintering method, to achieve <1% porosity by vol. in the built part. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Powder Materials |