Inverse kinetic analysis method to study eutectic growth

• Deterministic modelling is a classical method used for solidification simulation. A common procedure uses a kinetic model to describe the growth of solid phases. Formulation of the kinetic models used to be done by direct observation of the solidification process involving thermal analysis and microstructure investigation. Much effort has been invested in studying eutectic alloys and their solidification kinetics. Different growth parameters were observed which are assumed to depend on experimental conditions. The present study uses a direct simulation including a kinetic model for simulation of the eutectic phase. The simulated microstructure and cooling curves were used to carry out inverse thermal and inverse kinetic analyses. The inverse kinetic analysis method introduced indicates a strong equivalence between the direct solidification model and the inverse calculation. The position of the cooling curves used in the inverse analysis has been investigated and the best results are obtained when the cooling curves analysed are from locations closely positioned in space.

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