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Effect of grain refinement and modification of eutectic phase on shrinkage of AlSi9Cu3 alloy

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Author(s): M. Petrič | J. Medved | P. Mrvar

Journal: Metalurgija
ISSN 0543-5846

Volume: 50;
Issue: 2;
Start page: 127;
Date: 2011;
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Keywords: AlSi9Cu3 alloy | shrinkage | solidification morphology | sink

ABSTRACT
Paper describes influence of grain refining and of modification on feeding behavior of Al – alloys. Research was made with the AlSi9Cu3 alloy. Three samples of basic, grain refined, and modified alloy were cast by the newly developed method for determining susceptibility to shrinkage and into the Quick cup measuring cells for simple thermal analyses which were simultaneously done with all these samples. Castings were then analyzed with X-raying, density measurements, visually observed and metallographically examined. Also grain size was determined with light microscopy and polarized light.
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