About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Advances in Multi-Principal Element Alloys III: Mechanical Behavior
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Presentation Title |
Deformation Substructures in a Multi-component bcc Refractory Alloy Encompassing Inverse Superalloy-like Microstructure with Disordered Precipitates in a Continuous Ordered Matrix: Cause of Brittleness and Mitigation Prospects |
Author(s) |
G. Babu Viswanathan, Zachary Kloenne, Brian Welk, Pariac O’Kelly , Hamish Fraser |
On-Site Speaker (Planned) |
G. Babu Viswanathan |
Abstract Scope |
Recently, a mixture of disordered BCC and ordered B2 phases within the realm of high-entropy concept has been highly sought after especially in the case of refractory compositions with the aim to emulate the γ/γ’ type microstructure to meet ever-increasing demand for new materials with enhanced properties at high temperatures. This talk will primarily address mechanical properties and deformation substructures in a multicomponent TiZrAlTaNbMo type alloy except in this case, the alloy has disordered bcc precipitates embedded in an ordered, B2 matrix, termed here as ‘inverted superalloy-like microstructure’ via spinodal decomposition. The talk will address the development of deformation substructures in response to plastic response of this alloy at room temperature (RT), especially the failure to translate the higher ductility seen at a higher temperature to room temperature. The investigation will also focus on the causes of brittleness of constituent phases and potential mitigation prospects. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Temperature Materials, High-Entropy Alloys, Mechanical Properties |