| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-43: In-situ Quasi-static Deformation Studies of CoCrNi Multi-principal Element Alloys |
| Author(s) |
Nathan E. Peterson, John Copley, Benjamin Ellyson, Connor Rietema, Francisco Coury, Francisco Gil Coury, Gustavo Bertoli, Kester Clarke, Amy Clarke |
| On-Site Speaker (Planned) |
Nathan E. Peterson |
| Abstract Scope |
Multi-principal element alloys (MPEAs), particularly those from the CoCrNi family, have been demonstrated to have both high strength and ductility at cryogenic and room temperatures. These alloys obtain their high toughness from plastic deformation mechanisms beyond slip, such as transformation and/or twinning induced plasticity (TRIP/TWIP). Due to the vast compositional landscape available for MPEAs, high throughput characterization methods are necessary to efficiently select new alloy compositions that exhibit TRIP and/or TWIP behavior. In-situ synchrotron x-ray diffraction measurements were performed at the Advanced Photon Source at Argonne National Laboratory to quantify the microstructural evolution in both equiatomic CoCrNi and a set of CoxCr40Ni60-x (x=30, 40, 50, 55 wt.%) MPEAs during quasi-static deformation at various temperatures between 23°C - 300°C to identify the active deformation mechanism(s) for different compositions and phase stabilities. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |