| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Phase-Field Modeling of Fatigue Microstructures in Ni-Based Single Crystal Superalloys |
| Author(s) |
Jose Dominic, Jean-Briac le Graverend |
| On-Site Speaker (Planned) |
Jose Dominic |
| Abstract Scope |
Ni-based Single-crystal superalloys are also subjected to fatigue loading that has a significant effect on the microstructure evolution and the rafting process in particular. It has been experimentally observed that rafting will occur at 45° when an alternate low cycle fatigue loading is applied. It is well known that the microstructural state has a large effect on mechanical performance during creep and fatigue. Phase-field simulations are performed with an anisotropic apparent diffusion coefficient that allows to predict tilted rafts during alternate fatigue loading at high temperatures which will be used to create a map of fatigue conditions for which raft tilting occurs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, Modeling and Simulation |