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Paper Titles
Gravity-Induced Convection during Directional Solidification of Hypermonotectic Alloys
p.193
Solidification of AlSi Alloys in the ARTEMIS and ARTEX Facilities Including Rotating Magnetic Fields – A Combined Experimental and Numerical Analysis
p.199
Solidification and Melting – Asymmetries and Consequences
p.205
Motion of Fine Particles under Interfacial Tension Gradient in Relation to Solidification of Steel
p.211
Effect of Travelling Magnetic Field on the Directional Solidification of Refined Al-3.5 wt%Ni Alloys
p.221
Microstructure Formation in AlSi7 Alloys Directionally Solidified with Forced Melt Flow
p.227
Macrosegregation in CC Slabs
p.233
Ensemble Averaged Two-Phase Eulerian Model for Columnar/Equiaxed Solidification of a Binary Alloy
p.239
Estimation of the Cooling Rate on the Basis of Secondary Dendrite Arm Spacing in Case of Continuous Cast Steel Slab
p.245

Effect of Travelling Magnetic Field on the Directional Solidification of Refined Al-3.5 wt%Ni Alloys

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Abstract:

The specific objective of the paper is to investigate the effect of fluid flow on the development of a dendritic microstructure and more particularly on the columnar and equiaxed solidification regimes. A gradient furnace (BATMAF) with a possibility of applying a travelling magnetic field was designed for the solidification of aluminium-based alloys. The travelling magnetic field (TMF) drives a forced flow in the liquid above the solidifying interface. Some experiments are achieved in this furnace on an Al-Ni3.5wt% refined alloy. As a result, a significant change of the microstructure due to the transversal melt flow is observed. This work is performed in the framework of the CETSOL/MICAST Microgravity Application Projects of the European Space Agency (ESA).

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Periodical:

Materials Science Forum (Volume 508)

Pages:

221-226

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.508.221

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Online since:

March 2006

Authors:

K. Zaïdat, T. Ouled-Khachroum, Nathalie Mangelinck-Noël, Guillaume Reinhart, M.D. Dupouy, R. Moreau

Keywords:

Alloy, Bridgman Technique, Dendrites, Directional Solidification, Magnetic Field, Stirring

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