Macrosegregation Caused by Deformation of the Mushy Zone

Lilia C. Nicolli; Christophe L. Martin; Asbjørn Mo; Olivier Ludwig

doi:10.4028/www.scientific.net/MSF.508.187

Paper Titles

Control of the Macrosegregations during Solidification of a Binary Alloy by Means of a AC Magnetic Field
p.163

The Effect of Melt Flow on the Dendrite Morphology
p.169

Segregation with Spongy Deformation of the Mushy Zone during Solidification of the Skin of Steel Cast Products
p.175

Influence of Forced Convection on Columnar Microstructure during Directional Solidification of Al - Ni Alloys
p.181

Macrosegregation Caused by Deformation of the Mushy Zone
p.187

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

HomeMaterials Science ForumMaterials Science Forum Vol. 508Macrosegregation Caused by Deformation of the...

Macrosegregation Caused by Deformation of the Mushy Zone

Abstract:

An experimental set-up for investigating macrosegregation formation due to deformation of an isotropic metallic mushy zone is presented. In the experiment, a semisolid Al-5.9wt%Cu sample is isothermally and non-uniformly compressed. Concentration and eutectic fraction are measured along selected lines, after quenching the sample. Results show that interdendritic liquid is pressed out of the central part of the sample to its outer part, increasing the concentration in this region. The experimental test is then addressed by a two-phase continuum model recently presented elsewhere. The modelling results show the same tendencies observed experimentally, although local variations in composition are not well correlated. Suggestions for future work are made.

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Periodical:

Materials Science Forum (Volume 508)

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187-192

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https://doi.org/10.4028/www.scientific.net/MSF.508.187

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Online since:

March 2006

Authors:

Lilia C. Nicolli, Christophe L. Martin, Asbjørn Mo, Olivier Ludwig

Keywords:

Deformation, Experimental Study, Macrosegregation, Modeling

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