About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Elements Alloys X: Structures and Modeling
|
Presentation Title |
TEM Study of a Refractory Complex Concentrated Alloy with BCC/B2 Microstructure |
Author(s) |
Jean-Philippe Couzinie, Milan Heczko, Veronika Mazanova, Oleg Senkov, Rajarshi Banerjee, Maryam Ghazisaeidi, Michael Mills |
On-Site Speaker (Planned) |
Jean-Philippe Couzinie |
Abstract Scope |
Among the most promising structural materials, refractory complex concentrated alloys (RCCAs) are currently of major importance as they could retain high mechanical properties beyond 1000°C. Promising compositions are found in alloy systems for which the ordered B2 phase is present, as a matrix or precipitates together with a disordered BCC phase. However, some basic challenges have still to be addressed. This is especially the case regarding the impact of such complex microstructure in BCC/B2 RCCAs on deformation mechanisms. To this aim, the talk will give some insights into the microstructure and the deformation processes of an alloy Al-Nb-Ta-Ti-V-Zr after compressive testing at 25°C and 600°C. Detailed transmission electron microscopy analysis of the phases and also of the defects governing the plastic deformation will be reported and discussed. |
Proceedings Inclusion? |
Planned: TMS Journal: Metallurgical and Materials Transactions |
Keywords |
High-Entropy Alloys, High-Temperature Materials, Characterization |