About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Frontiers in Solidification Science VIII
|
Presentation Title |
Cellular Automaton Modeling of Solidification Microstructure and Microporosity in Multi-component Aluminum Alloys |
Author(s) |
Cheng Gu, Michael Moodispaw, Colin Ridgeway, Alan A. Luo |
On-Site Speaker (Planned) |
Alan A. Luo |
Abstract Scope |
With the advancement of Integrated Computational Materials Engineering (ICME) for solidification products, it is important to predict their location-specific microstructure and properties. In this talk, a three-dimensional multi-component model was developed to predict solidification microstructure and microporosity evolution by using cellular automaton method. Both the effects of hydrogen and shrinkage on microporosity formation were considered in the model. The simulations show qualitative results of evolution and morphology of microstructure and quantitative results of percentage microporosity. A wedge die casting was used to study the effect of cooling rate on microstructure and microporosity and to validate the cellular automaton simulations. X-ray micro computed-tomography was performed to obtain the relevant porosity information such as pore morphology, pore size, final porosity percentage and so on. The simulated results of porosity size, percentage and distribution agree well with experimental measurements. |
Proceedings Inclusion? |
Planned: |
Keywords |
ICME, Solidification, Aluminum |