Dresden 2011 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 31: Postersitzung II
MM 31.17: Poster
Mittwoch, 16. März 2011, 17:15–18:45, P5
Investigation of the heterogeneous nucleation in the peritectic AlNi alloys — •Julia Kundin1, Hai-Lin Chen2, Heike Emmerich1, and Rainer Schmid-Fetzer2 — 1Material and Process Simulation (MPS), University Bayreuth, Germany, Nürnberger str.38(4) 95448 Bayreuth — 2TU Clausthal, Inst. Metallurgie, Robert-Koch-Str. 42 38678 Clausthal-Zellerfeld Germany
A quantitative multi-phase field model is used for the simulation of the solidification and for stages of peritectic transformation in the binary Al-Ni alloy. The experimental DSC curves were used for the calibration of the model and the evaluation of the kinetic parameters and the nucleation rate. For the simulation of the heat flow the temperature correction method have been employed. The model can be employed to obtain new relations between processing parameters and resulting kinetics and dynamics of the phase-transformation processes. The model and the method of the calibration could be applicable to any alloy systems with the known thermodynamic data.