About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Ferroelastic Domain Switching during Deformation of Yttria-stabilized Zirconia: A Phase-field Study |
Author(s) |
Avisor Bhattacharya, Mohsen Asle Zaeem |
On-Site Speaker (Planned) |
Avisor Bhattacharya |
Abstract Scope |
Current models are unable to accurately predict the simultaneous stress-strain and domain switching behaviors in ferroelastic materials. In this work, a novel phase-field model coupled with linear elasticity is proposed to study the domain switching behavior and stress-strain hysteresis loop in ferroelastic yttria-stabilized-zirconia (YSZ). Uniaxial tension and compression tests are completed, and the effects of strain rate and initial domain configurations on evolution of ferroelastic domains are studied. The model does not enforce a coercive stress, yet it predicts a reasonably well stress-plateau in the stress-strain curve depicting the absorption of energy during deformation. The model is also employed to simulate the stress-strain hysteresis loop. Overall, the simulations compare favorably with the experimental observations of stress-strain response and domain switching behavior in ferroelastic YSZ. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, |