About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Nanostructured Materials in Extreme Environments
|
Presentation Title |
Microstructural Evolution of Refractory-based Nanomultilayers at Elevated Temperatures |
Author(s) |
Kyle Russell, Andrea Hodge |
On-Site Speaker (Planned) |
Kyle Russell |
Abstract Scope |
Nanometallic multilayers are highly tailorable thin films that have demonstrated remarkable mechanical properties and resistance to both irradiation and corrosion damage due to a high density of interfaces. However, the engineering utility of nanomultilayers is limited by thermal instability caused by their high interfacial density, which provides a significant driving force for microstructural transformations. Prior studies have identified interfacial energetics as playing a significant role in determining layer stability but primarily focused on examining crystalline/crystalline interfaces. In order to expand our understanding of thermally induced degradation mechanisms in NMs, amorphous/crystalline interfaces must also be explored and analyzed. This work investigates the effects of varying characteristics of metallic glass FeW layers within a Fe/FeW nanolaminate structure on thermal stability by examining microstructural evolution via differential scanning calorimetry and ex-situ transmission electron microscopy characterization techniques at different temperatures. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Phase Transformations, Characterization |