Abstract
A three dimensional (3D) microstructural model was developed to simulate the nucleation and growth of grains and pores formed during the solidification of multi-component aluminum alloys. The model solves for the diffusion limited growth of the solid phases, combined with diffusion and shrinkage driven growth of pores. The interaction of the developing solid and gas phases was simulated and the resulting composition dependent curvatures were found to control the morphology of the pores formed. The predictions were compared to both in situ transmission radiographic observations of the kinetics of pore formation and 3D x-ray micro-tomographic observations of pore shape.
| Original language | English |
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| Title of host publication | TMS Annual Meeting|TMS Annu Meet |
| Pages | 225-231 |
| Number of pages | 6 |
| Publication status | Published - 2007 |
| Event | SHAPE CASTING: 2nd International Symposium - Orlando, FL Duration: 1 Jul 2007 → … |
Conference
| Conference | SHAPE CASTING: 2nd International Symposium |
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| City | Orlando, FL |
| Period | 1/07/07 → … |
Keywords
- Aluminum alloys
- Microstructure
- Modeling
- Porosity
- X-ray tomography