Shape rheocasting of high purity aluminium

It is demonstrated experimentally that using the Council for Scientific and Industrial Research Rheo Casting System and high pressure die casting it is possible to semi-solid process and cast into a shape high purity aluminium without a solidification temperature range. Nucleated embryos grow, coupl...

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Bibliographic Details
Published in:Scripta materialia 2011-03, Vol.64 (6), p.479-482
Main Authors: Curle, U.A., Möller, H., Wilkins, J.D.
Format: Article
Language:English
Subjects:
Aluminium
Aluminum
Convection
Crystal structure
CSIR-RCS
Die casting
Liquids
Nucleation of phase transformation
Purity
Rheocasting
Semi-solid processing
Solidification
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Summary:It is demonstrated experimentally that using the Council for Scientific and Industrial Research Rheo Casting System and high pressure die casting it is possible to semi-solid process and cast into a shape high purity aluminium without a solidification temperature range. Nucleated embryos grow, coupled with convection by induction during thermal arrest. The semi-solid structure during thermal arrest is captured after rheo-processing and casting. Fundamental solidification principles are used to describe observations of the solid to liquid ratio in the time range during thermal arrest.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2010.11.010