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Dendritic to globular morphology transition in ternary alloy solidification

Denis Danilov·Britta Nestler
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Abstract

The evolution of solidification microstructures in ternary metallic alloys is investigated by adaptive finite element simulations of a general multicomponent phase-field model. A morphological transition from dendritic to globular growth is found by varying the alloy composition at a fixed undercooling. The dependence of the growth velocity and of the impurity segregation in the solid phase on the composition is analyzed and indicates a smooth type of transition between the dendritic and globular growth structures.

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Denis Danilov, Britta Nestler. 2005-01-20. Dendritic to globular morphology transition in ternary alloy solidification. https://doi.org/10.1103/physrevlett.93.215501

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