About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Influence of Gamma Prime Size on Creep Deformation and Fracture in Gas Metal Arc Directed Energy Deposition Haynes 282 |
| Author(s) |
Sophia E. Hill, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Sophia E. Hill |
| Abstract Scope |
Gas Metal Arc Direct Energy Deposition (GMA-DED) is a large scale additive manufacturing method that is suited to produce large components for power generation applications. Recent work has shown that the creep performance of GMA-DED Haynes 282, a gamma prime (γ’) strengthened nickel superalloy, is comparable to that of the cast and wrought forms. However, GMA-DED Haynes 282 displays localized bands of creep deformation and transgranular creep fracture that is not observed in other forms of the alloy. This work investigates the influence of γ’ size on localized creep deformation and transgranular fracture by heat treating GMA-DED samples to form fine precipitates that are expected to be sheared by dislocations and coarse precipitates that are expected to be bypassed and then creep testing at 760 °C. The results are expected to provide insight into tailored heat treatments to improve the performance of GMA-DED Haynes 282 for power generation applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, Mechanical Properties |