About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-61: Role of Thermal Gyrations on Microstructure Evolution During Wire Arc Additive Manufacturing of Nickel Aluminum Bronze |
| Author(s) |
Jared Max Garthwait, Sahil Pradhan, Nathan Jay Young, Gianna Valentino, Jeff Kikel, Sudarsanam Suresh Babu |
| On-Site Speaker (Planned) |
Jared Max Garthwait |
| Abstract Scope |
Wire arc additive manufacturing (WAAM) of nickel aluminum bronze is being evaluated as an alternative technique for producing large-scale parts to meet the perceived challenges in the existing supply chain for castings. Existing literature shows that spatial differences in thermal signatures and/or subtle changes in composition may lead to large variations in liquid to solid (liquid to β-bcc) and repeated solid to solid phase transformations - both reconstructive (β-bcc to α-fcc, all κ phases) and displacive (β to β’). Consequently, microstructural and property gradients are often observed in welds, laser clads, and WAAM parts. To describe these variations in the complex parts made by the WAAM process, there is a need for controlled experiments. Therefore, we will simulate thermal signatures experienced by the WAAM deposit using a GleebleŽ thermomechanical simulator and correlate these signatures to microstructure. These results are relevant for part-specific qualification of AM parts. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Phase Transformations, Solidification |