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

Quantification and classification of microstructures in ternary eutectic alloys using 2-point spatial correlations and principal component analyses

Choudhury, A. and Yabansu, Yuksel C. and Kalidindi, Surya R. and Dennstedt, Anne (2016) Quantification and classification of microstructures in ternary eutectic alloys using 2-point spatial correlations and principal component analyses. Acta Materialia, 110, pp. 131-141. Elsevier. DOI: 10.1016/j.actamat.2016.03.010 ISSN 1359-6454

Full text not available from this repository.

Abstract

Eutectic solidification gives rise to a number of distinct microstructure patterns that might include lamella, rods and labyrinths in binary alloys. However, as the number of phases and components increases, the number of possible patterns that might be obtained during bulk solidification also become larger. While the morphological attributes of binary eutectic solidification have been fairly well understood, the same is not true for ternary and higher multicomponent alloys. In this paper, we study and quantify microstructures in ternary alloys as a function of two essential parameters, namely, the volume fraction of the solid phases and the surface energies of the interfaces (in particular the solid-liquid interfaces). For the selected ensemble of microstructures, quantification and classification were carried out using a recently developed data-driven (objective) approach based on principal component analyses of 2-point correlations. It is demonstrated that the method is capable of analyzing and quantifying the similarity/difference measures between the elements of the selected ensemble of microstructure.

Item URL in elib:https://elib.dlr.de/104970/
Document Type:Article
Title:Quantification and classification of microstructures in ternary eutectic alloys using 2-point spatial correlations and principal component analyses
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Choudhury, A.Indian Institute of Science, Department of Materials Engineering, 560012 Bangalore, IndiaUNSPECIFIED
Yabansu, Yuksel C.George W. Woodruff School of Mechanical Engineering, Atlanta, GA 30332, United StatesUNSPECIFIED
Kalidindi, Surya R.George W. Woodruff School of Mechanical Engineering, Atlanta, GA 30332, United States andSchool of Computational Science and Engineering, Georgia Institute of Technology, Atlanta 30332, GA, USAUNSPECIFIED
Dennstedt, AnneAnne.Dennstedt (at) dlr.deUNSPECIFIED
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:110
DOI :10.1016/j.actamat.2016.03.010
Page Range:pp. 131-141
Publisher:Elsevier
ISSN:1359-6454
Status:Published
Keywords:Ternary eutectic; Phase-field; CALPHAD; Pattern-formation; PCA
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 Materialdesign und neue Materialien, R - Vorhaben Materialforschung und Mikrogravitation (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Kargl, Dr Florian
Deposited On:04 Jul 2016 07:05
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.