Kinetics of Dendrite with Non-equilibrium Kinetic Effects

Kinetics of Dendrite with Non-equilibrium Kinetic Effects

Non-equilibrium solidification involves solute trapping and attachment kinetics, both phenomena leading to deviations from the thermodynamic equilibrium phase diagram. These effects are of prime importance for modeling the growth of interfaces. However, they rely on mathematical expressions only valid for dilute alloys and ideal solutions. Similarly, dendrite tip and planar front kinetics are based on the linearization of the phase diagram.

In this webinar, a model is proposed that computes i) a kinetic phase diagram, i.e. a phase diagram that accounts for non-equilibrium phenomena, and ii) the planar front and dendrite tip kinetics, all coupled with CALPHAD databases, and hence suitable for non dilute commercial alloys and rapid solidification. Comparison with the usual approximations found in the literature will be shown. The models are intended to be used for additive manufacturing and microsegregation analyses.

This webinar is part of our Expert User Series, which invites experts from industry and academia to present their work with Thermo-Calc products.

Dr. Charles-André GANDIN, Research Director, Ecole de Mines

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About the Speaker


Dr. Charles-André GANDIN
Research Director
Ecole de Mines

Dr. Charles-André GANDIN

Charles-André GANDIN is a researcher with the Centre National de la Recherche Scientifique (Paris, France) since 1999. He joined the Centre de Mise en Forme des Matériaux, a research center of MINES ParisTech, in 2004. His field of study is physical metallurgy in the context of material processing routes. This involves numerical modeling of phase transformations, microstructures, segregations and coupling with thermodynamic databases. He has directed 36 PhD students and is coauthor of 105 journal articles.

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