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

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autorinnen und Autoren: Hoetzer J, Steinmetz P, Jainta M, Schulz S, Kellner M, Nestler B, Genau A, Dennstedt A, Bauer M, Köstler H, Rüde U
Zeitschrift: Acta Materialia
Verlag: Elsevier
Jahr der Veröffentlichung: 2016
Band: 106
Seitenbereich: 249-259
ISSN: 1359-6454
Sprache: Englisch


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.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bauer, Martin
Lehrstuhl für Informatik 10 (Systemsimulation)
Köstler, Harald Prof. Dr.
Lehrstuhl für Informatik 10 (Systemsimulation)
Rüde, Ulrich Prof. Dr.
Lehrstuhl für Informatik 10 (Systemsimulation)

Einrichtungen weiterer Autorinnen und Autoren

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Karlsruhe Institute of Technology (KIT)
University of Alabama at Birmingham (UAB)


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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