About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications V
|
| Presentation Title |
Additive Manufacturing of an Oxide Dispersion Strengthened Nickel-based Alloy for Molten Salt Reactor Application Using Hastelloy N Powder |
| Author(s) |
Fedi Fehri, Matthew Dejong, Sourabh Saptarshi, Timothy Horn, Djamel Kaoumi |
| On-Site Speaker (Planned) |
Matthew Dejong |
| Abstract Scope |
Ni-based alloy now known as Hastelloy-N was developed for use as a structural material for molten salt reactor applications for its good resistance to molten salt corrosion. However, its radiation resistance was limited especially in terms of swelling. A new oxide dispersion strengthened (ODS) version of that alloy is being developed at lab scale using custom made Hastelloy-N powder. This is done using Hastelloy N powder mechanically mixed with additions of Y2O3 powder and either Ti or Zr powders then consolidated through LPBF additive manufacturing. Microstructural characterization of the samples is conducted using transmission electron microscopy and Chemi-STEM. The process resulted in the formation of the oxide dispersion. The oxide particle size distribution, number density and volumetric density was determined for the different samples. A comparison with samples obtained from a different consolidation route consisting of cryo-milling the powder mixtures, cold pressing and sintering is also provided. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Characterization |