About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Feedstock Processing for Multifunctional Materials
|
| Presentation Title |
Wire Arc Additive Manufacturing of Powder Cored Superalloy Feedstock for Advanced Materials |
| Author(s) |
William Sean James, Supriyo Ganguly, Goncalo Pardal |
| On-Site Speaker (Planned) |
William Sean James |
| Abstract Scope |
This study explores Wire Arc Additive Manufacturing (WAAM) using powder cored wire (PCW) for superalloy deposition, offering a cost-effective alternative to solid wire. Room temperature tensile performance of PCW-deposited RE41 superalloy was comparable to solid wire (58% vs. 62% of wrought strength). Macrostructural analysis showed similar large columnar grains, though with increased "waviness" due to higher current. Microstructurally, PCW material mirrored solid wire but exhibited large pores (up to 400 µm), requiring process refinement for critical applications. Intergranular cracking, consistent with solid wire, may be resolved via in-process cold working. EBSD confirmed large columnar grains and distinct layer banding. This research highlights PCW's economic benefits as an innovative feedstock for additive manufacturing of superalloys, while identifying key areas for process optimization to achieve defect-free components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Process Technology |