| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Deformation-induced Manipulation of Defect Structures and Hierarchical Microstructures
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| Presentation Title |
Deformation of Fe-Rich, Co-Free Multi-Principal Element Alloys at Multiple Strain Rates and Temperature Conditions |
| Author(s) |
James J. Frishkoff, Kester Clarke, Amy Clarke |
| On-Site Speaker (Planned) |
James J. Frishkoff |
| Abstract Scope |
Multi-principal element alloys (MPEAs) have been shown to exhibit novel and desirable mechanical properties, including high strength – ductility combinations and compositionally and microstructurally tunable deformation mechanisms. However, most MPEA mechanical property measurements are made at room temperature under quasi-static strain rate conditions. Given that deformation mechanisms in metals and alloys are temperature and strain rate dependent, understanding the mechanical response of MPEAs under varied thermal and strain rate conditions is important to their phase stability and microstructure evolution, processing, and potential service in demanding applications. A set of Fe-rich MPEAs were designed and subjected to variable strain rate and temperature mechanical testing in a GleebleŽ thermomechanical processing simulator. Constitutive relations were derived from these tests. Microstructural evolution with deformation was assessed via x-ray diffraction and electron backscatter diffraction, and temperature and strain rate dependence of deformation mechanisms is discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Phase Transformations |