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

Journal

Acta Materialia Elsevier

Publisher: Elsevier

Book Volume: 106

Pages Range: 249-259

URI: http://www.sciencedirect.com/science/article/pii/S1359645415301580/pdfft?md5=45df4824879d9b1edb06733c7ad1e007πd=1-s2.0-S1359645415301580-main.pdf

DOI: 10.1016/j.actamat.2015.12.052

Abstract

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.

Authors with CRIS profile

Martin Bauer Lehrstuhl für Informatik 10 (Systemsimulation) Harald Köstler Lehrstuhl für Informatik 10 (Systemsimulation) Ulrich Rüde Lehrstuhl für Informatik 10 (Systemsimulation)

Involved external institutions

Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) / German Aerospace Center DE Germany (DE) University of Alabama at Birmingham (UAB) US United States (USA) (US) Karlsruhe Institute of Technology (KIT) DE Germany (DE)

How to cite

APA:

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. https://dx.doi.org/10.1016/j.actamat.2015.12.052

MLA:

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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