Simulation on solidification of an Al-Ni alloy under electromagnetic stirring

The microstructure of Al-Ni alloy has a significant influence on its performance, while electromagnetic stirring is one of the most effective methods for control of solidification structure of Al alloy. To investigate the effect of electromagnetic stirring on the solidification of the ingot, the sol...

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Main Authors: Sha Minghong, Wang Tongmin, Bai Fudong
Format: Article
Language:English
Published: Foundry Journal Agency 2012-08-01
Series:China Foundry
Subjects:
Online Access:http://www.foundryworld.com/uploadfile/2012082743072233.pdf
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author Sha Minghong
Wang Tongmin
Bai Fudong
author_facet Sha Minghong
Wang Tongmin
Bai Fudong
author_sort Sha Minghong
collection DOAJ
description The microstructure of Al-Ni alloy has a significant influence on its performance, while electromagnetic stirring is one of the most effective methods for control of solidification structure of Al alloy. To investigate the effect of electromagnetic stirring on the solidification of the ingot, the solidification of the Al-50Ni alloy in vacuum with electromagnetic stirring was described by numerical simulation in this paper; and a three dimensional mathematical model was established. The electromagnetic field was simulated by ANSYS software and the thermal-flow field was simulated by FLUENT software. The coupling between the electromagnetic field and the thermal-flow field was implemented by user-defined subroutines. It is found that the current intensity has significant influences on the fluid flow and the microstructure of the alloy. The simulation results agree well with the experimental results, and the optimum current intensity under the exprimental conditions is 80 A, while the frequency is 50 Hz.
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spelling doaj.art-233d8b5c38394bffb4b8e8aa028449d02022-12-21T21:09:09ZengFoundry Journal AgencyChina Foundry1672-64212012-08-0193258262Simulation on solidification of an Al-Ni alloy under electromagnetic stirringSha MinghongWang TongminBai FudongThe microstructure of Al-Ni alloy has a significant influence on its performance, while electromagnetic stirring is one of the most effective methods for control of solidification structure of Al alloy. To investigate the effect of electromagnetic stirring on the solidification of the ingot, the solidification of the Al-50Ni alloy in vacuum with electromagnetic stirring was described by numerical simulation in this paper; and a three dimensional mathematical model was established. The electromagnetic field was simulated by ANSYS software and the thermal-flow field was simulated by FLUENT software. The coupling between the electromagnetic field and the thermal-flow field was implemented by user-defined subroutines. It is found that the current intensity has significant influences on the fluid flow and the microstructure of the alloy. The simulation results agree well with the experimental results, and the optimum current intensity under the exprimental conditions is 80 A, while the frequency is 50 Hz.http://www.foundryworld.com/uploadfile/2012082743072233.pdfelectromagnetic stirringnumerical simulationAl-Ni alloysolidification
spellingShingle Sha Minghong
Wang Tongmin
Bai Fudong
Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
China Foundry
electromagnetic stirring
numerical simulation
Al-Ni alloy
solidification
title Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
title_full Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
title_fullStr Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
title_full_unstemmed Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
title_short Simulation on solidification of an Al-Ni alloy under electromagnetic stirring
title_sort simulation on solidification of an al ni alloy under electromagnetic stirring
topic electromagnetic stirring
numerical simulation
Al-Ni alloy
solidification
url http://www.foundryworld.com/uploadfile/2012082743072233.pdf
work_keys_str_mv AT shaminghong simulationonsolidificationofanalnialloyunderelectromagneticstirring
AT wangtongmin simulationonsolidificationofanalnialloyunderelectromagneticstirring
AT baifudong simulationonsolidificationofanalnialloyunderelectromagneticstirring