title: Dendritic to globular morphology transition in ternary alloy solidification.
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.
authors.affiliation: Institute of Applied Research, Karlsruhe University of Applied Sciences, Moltkestrasse 30, 76133 Karlsruhe, Germany.
authors.forename: Denis
authors.initials: D
authors.lastname: Danilov
authors.forename: Britta
authors.initials: B
authors.lastname: Nestler