| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales III
|
| Presentation Title |
Fluctuations in the Generalized Planar Fault Energy Landscape in Concentrated FCC Solid Solutions |
| Author(s) |
Matthew Daly, Ritesh Jagatramka, Chu Wang |
| On-Site Speaker (Planned) |
Matthew Daly |
| Abstract Scope |
The generalized planar fault energy landscape provides a roadmap for understanding the intrinsic competition between deformation mechanisms in metals and alloys. Our previous work has demonstrated how fault energies can be leveraged to build scalable physical models that predict the evolution of deformation twin microstructures and strain partitioning amongst deformation mechanisms in FCC metals. Here, we will discuss an expansion of this effort to include concentrated FCC solid solutions. In particular, we will overview the connection between local chemical disorder and stochastic fluctuations in the generalized planar fault energy landscape, along with the effects of these fluctuations on mechanism competition. Efforts to adapt deformation models to account for stochastic fault energies and methods to provide a priori predictions of fault energy fluctuations will also be discussed. |