Phase-field simulations of spiral growth during directional ternary eutectic solidification

Hoetzer J, Steinmetz P, Jainta M, Schulz S, Kellner M, Nestler B, Genau A, Dennstedt A, Bauer M, Köstler H, Rüde U (2016)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Review article

Publication year: 2016


Publisher: Elsevier

Book Volume: 106

Pages Range: 249-259


DOI: 10.1016/j.actamat.2015.12.052


A wide variety of growth patterns has been observed during the directional solidification of three-phase ternary eutectics in multi-component alloys. One hypothesized pattern is the spiral growth of two rodlike phases rotating around each other, which are embedded in a matrix phase. Possible evidence of spiral growth is found experimentally in longitudinal micrographs of the ternary eutectic system Ag-Al-Cu. The phase-field method allows the study of such spatially complex microstructures in order to gain deeper insights into the three-dimensional pattern formation of ternary eutectics. Based on the simulation parameters, which produced a high tilt angle in 2D lamellar growth, determined via systematic parameter studies, multiple spirals are detected in large-scale 3D simulations. Through the presented phase-field simulations, the possibility of the existence of spiral growth in ternary eutectics, reported from experiments, is confirmed. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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Hoetzer, J., Steinmetz, P., Jainta, M., Schulz, S., Kellner, M., Nestler, B.,... Rüde, U. (2016). Phase-field simulations of spiral growth during directional ternary eutectic solidification. Acta Materialia, 106, 249-259.


Hoetzer, Johannes, et al. "Phase-field simulations of spiral growth during directional ternary eutectic solidification." Acta Materialia 106 (2016): 249-259.

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