About this Abstract |
Meeting |
6th International Congress on 3D Materials Science (3DMS 2022)
|
Symposium
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6th International Congress on 3D Materials Science (3DMS 2022)
|
Presentation Title |
On the 3D Nature of Dislocation Lines and Core Structures in High Entropy Complex Alloys |
Author(s) |
Diana Farkas, Roberto Pasianot |
On-Site Speaker (Planned) |
Diana Farkas |
Abstract Scope |
Dislocations in high entropy complex alloys are wavy and present irregular core structures in three dimensions. We present the results of atomistic level simulations of this phenomena in FCC multicomponent materials. Molecular Dynamics modeling and a model interatomic potential for a quinary alloy are used to investigate the structure and motion of ˝ [110] dislocations. The three dimensional shape of the dislocation lines is analyzed as influenced by the random distribution of the component species. We also report the details of the separation of the dislocations into partials and the irregular nature of the resulting dislocation cores. The implications of these structures for the motion of the dislocations under stress are discussed. |
Proceedings Inclusion? |
Definite: Other |