About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Investigating Process Parameters of WA 740H in PBF-LB |
| Author(s) |
Sarah Birchall, Anthony Rollett, Bryan Webler |
| On-Site Speaker (Planned) |
Sarah Birchall |
| Abstract Scope |
This work focuses on the fabrication of water atomized (WA) nickel alloy 740H parts for solar receiver applications by exploring various process parameters. The use of WA metal powders can be a cost-effective alternative to inert gas atomized (GA) powders in laser powder bed fusion (PBF-LB) additive manufacturing (AM). WA powders contain higher amounts of oxygen and are more irregular in shape compared to GA powders. To compare the GA and WA powder behavior, discrete element method (DEM) simulations of a rotating drum will be discussed. This project investigates the effect of PBF-LB process parameters on part density, creep properties, and tensile properties when using WA 740H feedstock powder. This work will also explore various aging steps for optimal heat treatment for this alloy. As a baseline, the WA 740H parts are compared to GA alloy 282 parts for mechanical property requirements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, Mechanical Properties |