elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

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

Hötzer, Johannes and Steinmetz, Philipp and Jainta, Marcus and Schulz, Sebastian and Kellner, Michael and Nestler, Britta and Genau, Amber and Dennstedt, Anne and Bauer, Martin and Köstler, Harald and Rüde, Ulrich (2016) Phase-field simulations of spiral growth during directional ternary eutectic solidification. Acta Materialia, 106, pp. 249-259. Elsevier. DOI: 10.1016/j.actamat.2015.12.052 ISSN 1359-6454

Full text not available from this repository.

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 rod-like 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.

Item URL in elib:https://elib.dlr.de/102654/
Document Type:Article
Title:Phase-field simulations of spiral growth during directional ternary eutectic solidification
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hötzer, JohannesInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Steinmetz, PhilippInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Jainta, MarcusInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Schulz, SebastianInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Kellner, MichaelInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Nestler, BrittaInstitute for Applied Materials - Computational Materials Science (IAM-CMS), Karlsruhe Institute of Technology (KIT), KarlsruheUNSPECIFIED
Genau, AmberUniversity Alabama at BirminghamUNSPECIFIED
Dennstedt, AnneAnne.Dennstedt (at) dlr.deUNSPECIFIED
Bauer, MartinLehrstuhl für Informatik 10 (Systemsimulation), Universität Erlangen-Nürnberg, Martensstraße 5a, 91058 Erlangen, GermanyUNSPECIFIED
Köstler, HaraldLehrstuhl für Informatik 10 (Systemsimulation), Universität Erlangen-Nürnberg, NürnbergUNSPECIFIED
Rüde, UlrichLehrstuhl für Informatik 10 (Systemsimulation), Universität Erlangen-Nürnberg, NürnbergUNSPECIFIED
Date:2016
Journal or Publication Title:Acta Materialia
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:106
DOI :10.1016/j.actamat.2015.12.052
Page Range:pp. 249-259
Publisher:Elsevier
ISSN:1359-6454
Status:Published
Keywords:Phase-field simulation,Directional solidification,Spiral growth,Ternary eutectic, Pattern formation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Materialforschung unter Mikro-g (old), R - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Kargl, Dr Florian
Deposited On:29 Jan 2016 07:42
Last Modified:10 Jan 2019 15:45

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.