About this Abstract |
Meeting |
2016 TMS Annual Meeting & Exhibition
|
Symposium
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Computational Methods for Spatio-temporal Scale-bridging: from Atomistics to Mesoscale
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Presentation Title |
Embedding a Microstructure Model in a Macro-scale Solidification Model |
Author(s) |
John W Gibbs, Seth D Imhoff, Damien Tourret, Neil N Carlson, Amy J Clarke |
On-Site Speaker (Planned) |
John W Gibbs |
Abstract Scope |
Solidification provides the best opportunity to affect the microstructure and chemical uniformity of a metal. This makes solidification one of the most worthwhile phenomena to simulate; however, it is also one of the most difficult due to the huge range of length and time scales that dominate the microstructural development during solidification. Here, we present a method of bridging the macro- to the micro-scale by embedding a microstructure development model into a mature finite volume code that has been developed specifically for casting modeling. Both the micro- and macro-scale portions of the simulation are validated with a combination of proton radiography to measure the filling rate and fluid flow behavior, temperature measurements, post-mortem scanning electron microscopy, and x-ray fluorescence, and comparisons to dendrite needle network simulations. |
Proceedings Inclusion? |
Planned: A print-only volume |