Berlin 2008 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 29: Poster II

DY 29.47: Poster

Donnerstag, 28. Februar 2008, 16:00–18:00, Poster C

Velocity Selection Problem in the Presence of the Triple Junction — efim brener, •claas hueter, denis pilipenko, and dmitri temkin — Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich

The melting processes along a grain boundary and the growth of an eutectoid dendrite are considered. In our previous work we have shown that under some assumptions it is possible to solve the corresponding integro-differential equation analytically. Here we consider also the growth of a eutectoid dendrite. In both cases the presence of a triple junction serves as selection mechanism. This theory is applicable to the practical important system: Dendritic growth of ferrite on an austenite grain boundary.