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http://hdl.handle.net/11375/21841
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DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Provatas, Nikolas | - |
dc.contributor.author | Fan, Jun | - |
dc.date.accessioned | 2017-08-11T20:26:06Z | - |
dc.date.available | 2017-08-11T20:26:06Z | - |
dc.date.issued | 2005-08 | - |
dc.identifier.uri | http://hdl.handle.net/11375/21841 | - |
dc.description.abstract | <p>Rapid solidification is a well established method to produce novel materials with improved mechanical or electrical properties. The sharp-interface kinetics of rapid solidification for a binary alloy is summarized. A Phase Field model mapping to this sharp interface model is summarized and solved by a new adaptive mesh refinement algorithm. Simulation results are consistent with experiments: The solidification velocity increases in power-law like fashion at low undercooling and approximately linearly at high undercooling; The solid/liquid interface undergoes a transition from four-fold dendritic to circular crystal structures; Solute trapping emerges and the solute partitioning approaches unity as the solidification velocity increases. Our Phase Field simulations are the first self -consistent predictions of velocity selection and morphological selection at both low and high undercoolings and also the first independent check of the solute trapping model in two dimensions.</p> | en_US |
dc.language.iso | en_US | en_US |
dc.subject | phase-field simulation, Rapid solidification, Binary alloys, solute trapping, four-fold dendritic | en_US |
dc.title | Phase-Field Simulations of Rapid Solidification in Binary Alloys | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | Materials Science | en_US |
dc.description.degreetype | Thesis | en_US |
dc.description.degree | Master of Applied Science (MASc) | en_US |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Fan_Jun_2005Aug_Masters..pdf | 6.04 MB | Adobe PDF | View/Open |
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