Regensburg 2007 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 20: Poster session

MM 20.21: Poster

Dienstag, 27. März 2007, 14:45–18:00, Poster C

Modeling of dendritic solidification *in undercooled dilute Ni-Zr melts — Denis Danilov¹, Peter Galenko², •Britta Nestler¹, and Dieter Herlach² — ¹Institute for Computational Engineering, Karlsruhe University of Applied Sciences, Karlsruhe, Germany — ²Institut für Raumsimulation, DLR, Köln

The dendritic and eutectic solidification in undercooled Ni-Zr samples is analyzed using new experimental results, theoretical studies based on a sharp-interface model and phase-field simulations. Predictions of a sharp interface model and of a diffuse interface model describing the phase transition under the consideration of both, thermal and solutal diffusion are compared with the experimental results evaluating the dendritic tip velocity in electromagnetically levitated Ni-Zr samples.