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Non-Equilibrium Solidification, Modeling for Microstructure Engineering of Industrial Alloys (NEQUISOL)

Herlach, Dieter M. and Gegner, Jan and Gandin, Charles-André and Tourret, Damien and Henein, Hani and Ilbagi, Arash and Garcia-Escorial, Asuncion and Grün, Gerd-Ulrich and Schneider, Marc (2013) Non-Equilibrium Solidification, Modeling for Microstructure Engineering of Industrial Alloys (NEQUISOL). 142nd Annual Meeting & Exhibition, 03. - 07. March 2013, San Antonio, USA. (Unpublished)

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Abstract

Within the ESA-MAP project NEQUISOL solidification and microstructure evolution of containerless undercooled drops and droplets of Al-based alloys are investigated. Individual drops in diameter of about 6mm are processed by electromagnetic levitation both on Earth and in Space. This technique allows to measuring the temperature time profile during melting and solidification yielding the undercooling prior to solidification. The dendrite growth velocities are measured by high-speed camera technique. Comparing experiments on Earth and in Space allows for determining the influence of convection on solidification kinetics and microstructure evolution. These results are used to extend multi-scale modeling to predict microstructure development as function of undercooling and cooling rate. The results are directly related to the production of Al-Ni powders in atomization facilities operated by some partners of the project. Atomization provides both containerless processing and reduced gravity conditions in solidification of small droplets during free fall on Earth. It is an industrial production route of advanced materials.

Item URL in elib:https://elib.dlr.de/81733/
Document Type:Conference or Workshop Item (Speech)
Title:Non-Equilibrium Solidification, Modeling for Microstructure Engineering of Industrial Alloys (NEQUISOL)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Herlach, Dieter M.dieter.herlach (at) dlr.deUNSPECIFIED
Gegner, Janjan.gegner (at) dlr.deUNSPECIFIED
Gandin, Charles-André Charles-Andre.Gandin (at) mines-paristech.frUNSPECIFIED
Tourret, Damiend.tourret (at) neu.eduUNSPECIFIED
Henein, Hanihani.henein (at) ualberta.caUNSPECIFIED
Ilbagi, Arashilbagi (at) ualberta.caUNSPECIFIED
Garcia-Escorial, AsuncionCENIM-CSIC (Spanien)UNSPECIFIED
Grün, Gerd-UlrichHydro Aluminium Deutschland GmbH, BonnUNSPECIFIED
Schneider, MarcMAGMASOFT AachenUNSPECIFIED
Date:4 March 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Undercooling of Materials
Event Title:142nd Annual Meeting & Exhibition
Event Location:San Antonio, USA
Event Type:international Conference
Event Dates:03. - 07. March 2013
Organizer:TMS
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)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Herlach, Dieter
Deposited On:26 Mar 2013 10:34
Last Modified:26 Mar 2013 10:34

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