About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
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Presentation Title |
Deformation Mechanisms of the B2 Phase in Binary Ru-X Systems (X=Ti,Zr,Hf) |
Author(s) |
Jean-Philippe Couzinie, Regis Poulain, Loic Perriere, Bryan Crossman, Maryam Ghazisaeidi, Michael Mills |
On-Site Speaker (Planned) |
Jean-Philippe Couzinie |
Abstract Scope |
Complex concentrated alloys based on refractory elements are strong candidates for structural applications under stress for T > 1000°C. Promising alloy compositions are found in systems with intermetallic B2 phase together with disordered BCC phase. However, microstructural instability leading to a strong decrease of high-temperature strength is found in BCC+B2 microstructures with Al addition. On the contrary, alloy design with Ru addition seems to be an alternative way to form interesting microstructures with stable B2 phase. Hence, we propose to study in detail the deformation processes of the hardening intermetallic phase based on Ru, by considering binary systems (Ru-X with X=Ti,Zr,Hf). Compressive mechanical tests will be performed and detailed transmission electron microscopy analysis of the defects governing the plastic deformation will be reported and discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, High-Temperature Materials |