| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing:
Incorporating Breakthrough Functionalities for Building Large Scale Components
|
| Presentation Title |
Haynes 282 Wire Directed Energy Deposition Hot and Cold Wire Microstructure Analysis |
| Author(s) |
Dennis Gilbert, Andrew Wessman, Mohammed Shafae, Mohammed Ibrahim, Ethan Valentine |
| On-Site Speaker (Planned) |
Dennis Gilbert |
| Abstract Scope |
This study planned to characterize the differences in microstructure between two sets of Haynes 282 nickel-superalloy builds printed via laser-wire directed energy deposition additive manufacturing, one printed with cold wire or ambient temperature wire and the other with electrically preheated wire. The cubes were observed in the as-built condition and three different solution heat treatment temperatures, 1250C as found by Christofidou et al for complete recrystallization of LPBF Haynes 282, 1100C as stated by Haynes international as the standard solution temperature for wrought material, and an intermediate temperature of 1175C. Characterization includes observation of porosity, grain size and texture via EBSD, and either cellular dendrite or precipitate structure using SEM. This comparison will evaluate what effect wire preheat has on microstructure development and will provide insight into whether heated wire can produce acceptable material at higher build rates for improved build productivity for large scale structures using laser-wire DED. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Copper / Nickel / Cobalt |