About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Elements Alloys X: Structures and Modeling
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Presentation Title |
Electron Diffraction-based Studies of Ordering and Mechanical Behavior in FCC and BCC Multi-principal Element Alloys |
Author(s) |
Daniel L. Foley, David Beaudry, Elaf Anber, Yevgeny Rakita Shlafstein, Partha Pratim Das, Simon J. L. Billinge, Andrew Matejunas, Carolina Frey, Leslie Lamberson, Tresa Pollock, Irene Beyerlein, Garritt Tucker, Chris Weinberger, Mitra Taheri |
On-Site Speaker (Planned) |
Daniel L. Foley |
Abstract Scope |
Multi-principle element alloys (MPEAs), and specifically single-phase high entropy alloys (HEAs), offer a unique framework to study fundamental processes of deformation in metallic materials such as dislocation slip and mechanical twinning. Owing to their chemical and structural disorder, the energetic landscape for deformation substructure formation is more complex when compared to conventional alloys. This can lead to different modes microstructural evolution and result in improved mechanical properties. Furthermore, the potential for the existence of short-range order (SRO) in these alloys may further modulate deformation energetics, which would enable tunability and order-based material design. The present work utilizes various electron diffraction-based methods to characterize both the presence of SRO after thermal treatment and the microstructural evolution due to quasistatic and dynamic compression. |
Proceedings Inclusion? |
Planned: TMS Journal: Metallurgical and Materials Transactions |
Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |