Modelling of Al-7%wtSi-1wt%Fe Ternary Alloy: Application to Space Experiments with a Rotating Magnetic Field

Olga Budenkova; Florin Baltaretu; Sonja Steinbach; Lorenz Ratke; András Roósz; Arnold Rónaföldi; Jenõ Kovács; Anna Maria Bianchi; Yves Fautrelle

doi:10.4028/www.scientific.net/MSF.790-791.46

Paper Titles

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Modelling of Al-7%wtSi-1wt%Fe Ternary Alloy: Application to Space Experiments with a Rotating Magnetic Field
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HomeMaterials Science ForumMaterials Science Forum Vols. 790-791Modelling of Al-7%wtSi-1wt%Fe Ternary Alloy:...

Modelling of Al-7%wtSi-1wt%Fe Ternary Alloy: Application to Space Experiments with a Rotating Magnetic Field

Abstract:

Recently several experiments on directional solidification of Al-6.5wt.Si-0.93wt.%Fe (AlSi7Fe1) alloy were performed under terrestrial conditions and onboard the International Space Station (ISS) in the Materials Science Lab (MSL) with use of electromagnetic stirring and without it. Analysis of the samples showed that stirring with a rotating magnetic field lead to the accumulation of iron-rich intermetallics in the center of the sample and influenced the primary dendrite spacing while the secondary dendrite arm spacing were not affected. In the present paper the accumulation of the intermetallics b-Al₅SiFe in the center of the samples due to RMF stirring is demonstrated numerically and the evolution of primary and secondary dendrite arm spacing is discussed.

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Materials Science Forum (Volumes 790-791)

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46-51

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.790-791.46

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Online since:

May 2014

Authors:

Olga Budenkova*, Florin Baltaretu, Sonja Steinbach, Lorenz Ratke, András Roósz, Arnold Rónaföldi, Jenõ Kovács, Anna Maria Bianchi, Yves Fautrelle

Keywords:

AlSi-Based Alloy, AlSiFe Intermetallic, Dendrite Arm Spacing, Forced Convection, Lever Rule, Mesosegregation, Rotating Magnetic Field, Segregation, Ternary Alloys

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