About this Abstract |
Meeting |
2026 TMS Annual Meeting & Exhibition
|
Symposium
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Advances in Multi-Principal Element Alloys V: Mechanical Behavior
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Presentation Title |
Dynamic properties of NbTaTiHf High-Entropy Alloy |
Author(s) |
Aomin Huang, Abdallah Fahmy, Sheron Tavares, Matt Foong, Calvin Belcher, Marc Meyers, Enrique Lavernia |
On-Site Speaker (Planned) |
Aomin Huang |
Abstract Scope |
Refractory high-entropy alloys (RHEAs) have garnered substantial attention due to their outstanding high-temperature performance. Among them, the NbTaTiHf refractory RHEA shows great promise due to its excellent mechanical properties across multiple aspects, including high fracture resistance, exceptional work abilities at room temperature, and great creep resistance. Previous studies have primarily attributed these properties to the pronounced development of the kink band. However, its mechanical behavior at high strain-rate, which is essential to the application to structural materials that are subjected to dynamic loading, is yet to be studied, as dominant deformation can vary at different loading conditions. Our research aims to discover microstructural development in response to the dynamic uni-axial and shear loading, uncovering the critical condition for the initiation of shear instability and shear localization in RHEAs. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, |