| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-64: Plastic Behavior of Phase-separated FCC Complex Concentrated Alloys |
| Author(s) |
Xiang Chen, Ibrahim Altarabshe |
| On-Site Speaker (Planned) |
Ibrahim Altarabshe |
| Abstract Scope |
Complex Concentrated Alloys (CCAs)with multiple elements mixed in high mole fractions have received exceedingly broad attention in the field of materials design due to their large compositional space and potentially superior mechanical properties, the latter being largely determined by the dislocation behaviors and its interaction with microstructures in the CCAs.
Based on the compositions in experimentally obtained phase-separated CCAs, this work first uses atomistic simulations to measure the energy barrier of single edge and screw dislocations across the phase-interfaces in three different phase-separated FCC CCAs. Larger scale atomistic simulations and concurrently coupled atomistic simulations are then conducted to study the dislocation evolution as well as the resulting plastic mechanical responses.
This work will shed light on the fundamental mechanistic understanding of the effect of dislocation phase-interface interaction on their mechanical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Modeling and Simulation |