|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Functional Nanomaterials 2020: Translating Innovation into Pioneering Technologies
||The Microstructural Evolution of Nanotwinned Nickel Superalloys
||Joel Bahena, Andrea Hodge
|On-Site Speaker (Planned)
Nanotwinned materials have been shown to exhibit exceptional mechanical and thermal properties due to their high density of coherent twin boundaries, while superalloys typically achieve their strengthening through second phase or precipitate formation. By developing nanotwinned superalloys, there lies potential to produce microstructures that leverage strengthening effects from both nanotwins and precipitates. In this study, nanotwinned nickel-based superalloys were synthesized via magnetron sputtering and ageing treatments were performed to investigate the microstructural evolution of these nanomaterials and the effects on mechanical properties. To examine the segregation behavior and precipitate formation in these alloys at different aging conditions, microstructural characterization techniques such as TEM and STEM/EDS were utilized. This study examines how the role of nanotwins on aging kinetics and precipitate formation can be employed to tune microstructures for optimized mechanical and thermal properties of superalloys.
||Planned: Supplemental Proceedings volume