About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Integrated Models for the Design of Precipitation Hardenable Mg and Al Alloys |
Author(s) |
Hong Liu, Ioannis Papadimitriou, Fengxiang Lin, Javier Llorca, Jian-Feng Nie, Moelans Nele |
On-Site Speaker (Planned) |
Hong Liu |
Abstract Scope |
This talk will present a simulation roadmap for virtual design of metallic alloys for engineering applications. The roadmap is based on a bottom-up, multiscale modelling approach. A key element of this approach is constructed using a phase field method that can quantitatively predict microstructure evolution at the meso-scale and can effectively connect basic physical and chemical properties computed by atomic-scale simulations and mechanical properties predicted by macro-scale simulations. This multiscale approach has been used to simulate and predict precipitate shape, plastic deformation and strengthening in light alloys. The computational results indicate that the shape of precipitates is determined by the competition of elastic strain and interfacial energies. They further indicate that a plate morphology of the precipitates is more effective than spherical shape in impeding dislocation gliding. These computational results provide a robust platform for rational design of engineering light alloys for better mechanical properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
ICME, Magnesium, Aluminum |