About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond III
|
Presentation Title |
Experimental Determination of Mid-temperature Phases in Refractory Multi-Principal Element Ternary Alloys for Thermodynamic and Solid Solution Strengthening Modeling |
Author(s) |
Adira Balzac, Benjamin Ellyson, Kester Clarke, Amy Clarke |
On-Site Speaker (Planned) |
Adira Balzac |
Abstract Scope |
Novel multi-principal element alloys in the NbTaTi and NbTiZr families are promising candidates for developing high-strength refractory alloys. For these refractory ternaries, there are gaps in the experimental data in literature at mid-temperature ranges between about 900 and 1700 °C, which limits the modeling that can be done to predict phase equilibria to specific compositions, usually equimolar, that have been studied. We propose to study the equilibrium phases present in NbTaTi and NbTiZr at off-equimolar compositions through homogenization and annealing heat treatments at these temperatures to produce phase equilibria data that can be used to develop databases further for thermodynamic and solid solution strengthening modeling. We will also investigate the microstructures that develop because of thermomechanical processing and develop pathways to control these microstructures. |