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Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/21893
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dc.contributor.advisorZurob, H.S.-
dc.contributor.advisorProvatas, N.-
dc.contributor.authorOfori-Opoku, Nana-
dc.date.accessioned2017-08-31T16:13:07Z-
dc.date.available2017-08-31T16:13:07Z-
dc.date.issued2009-04-
dc.identifier.urihttp://hdl.handle.net/11375/21893-
dc.description.abstractThis thesis develops a new quantitative multi-phase field model for polycrystalline solidification of binary alloys. We extend the thin interface formalism of Karma and co-workers to multiple order parameters. This makes it possible to model segregation and interface kinetics during equiaxed dendritic growth quantitatively, a feature presently lacking from polycrystalline or multi-phase solidification models. We study dendrite tip speed convergence as a function of interface width during free dendritic growth. We then analyze the steady state and grain coalescence properties of the model. It is shown that the model captures the correct physics of back diffusion and repulsive grain boundary coalescence as outlined by Rappaz and co-workers. Finally, the model is applied to simulate solidification and coarsening in delta-ferrite solidification.en_US
dc.language.isoen_USen_US
dc.subjectquantitative, multi-phase, field modeling, polycrystalline, solidification, binary alloys, equiaxed dendritic growth, interfaceen_US
dc.titleQuantitative Multi-Phase Field Modeling of Polycrystalline Solidification in Binary Alloysen_US
dc.typeThesisen_US
dc.contributor.departmentMaterials Science and Engineeringen_US
dc.description.degreetypeThesisen_US
dc.description.degreeMaster of Applied Science (MASc)en_US
Appears in Collections:Digitized Open Access Dissertations and Theses

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