About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Neutron and X-ray Scattering in Materials Science
|
Presentation Title |
In-situ Neutron Diffraction Creep Behavior of Designer Superalloys Tailored for Additive Manufacturing |
Author(s) |
Patxi Fernandez-Zelaia, Christopher Ledford, Kira Pusch , Evan Raeker, Ning Zhou, Stephane A Forsik, Austin Dicus, Tresa Pollock, Michael M Kirka |
On-Site Speaker (Planned) |
Patxi Fernandez-Zelaia |
Abstract Scope |
Legacy alloys developed for the casting of hot section gas turbine components are notoriously difficult to weld and are not amendable to additive manufacturing (AM). AM, however, offers opportunities to open the component design space, improve engine efficiency and reduce overall emissions but it is imperative to address materials processing challenges to facilitate its adoption. In this talk, we present work on a new generation of defect-resistant high-γ’ superalloys; CoNi-based GammaPrintTM-700 and Ni-based GammaPrintTM-1100. Laser powder bed fusion samples of each alloy were subject to creep loading and in-situ neutron diffraction was utilized to measure lattice-scale deformation. The influence of precipitate-scale deformation mechanisms as well as grain-scale orientation sensitivity are discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |