About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
8th World Congress on Integrated Computational Materials Engineering (ICME 2025)
|
Presentation Title |
Multi-Scale Investigation of Dislocation-Precipitate-Grain Boundary Interactions in Precipitation-Hardened Al-Cu Alloys |
Author(s) |
Anantha Lakshmi Prasanna Tatavarty, Amit Singh, Sushil Mishra |
On-Site Speaker (Planned) |
Anantha Lakshmi Prasanna Tatavarty |
Abstract Scope |
This study employs a multi-scale approach to investigate the mechanical behaviour of precipitation-hardened Al-Cu alloys, focusing on dislocation-precipitate-grain boundary interactions. Molecular statics simulations validate equilibrium configurations from prior analytical models, capturing atomic-scale effects. Molecular dynamics (MD) simulations extract critical parameters, such as dislocation mobility and drag coefficients, which inform discrete dislocation dynamics (DD) studies. DD simulations analyze mesoscale dislocation behaviour and its dependence on microstructural features. These insights are integrated into crystal plasticity finite element modelling (CPFEM) to predict macroscopic deformation responses under varying conditions. This framework bridges atomistic, mesoscale, and continuum scales, providing a comprehensive understanding of the deformation mechanisms in precipitation-hardened Al-Cu alloys. |
Proceedings Inclusion? |
Undecided |