Effect of Heat Treatment on the Mechanical Properties of a Rheocast 357 Alloy using the SEED Method

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DOIResolve DOI: http://doi.org/10.4028/www.scientific.net/MSF.690.169
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TypeArticle
Proceedings titleInternational Light Metals Technology (LMT) Conference
Series titleMaterials Science Forum; Volume 690
Conference5th International Light Metals Technology (LMT) Conference, Lüneburg, Germany, June 19-22, 2011, Lüneburg, Germany
ISSN1662-9752
Volume5th
SubjectHeat Treatment, Mechanical Properties, Rheocasting, 357 Alloy, SEED; traitement thermique, propriétés mécaniques, alliage 357 rhéocoulée, rhéomoulage, SEED
AbstractThe ability of Al-Si alloys to be cast into complex shapes, coupled with a favourable strengthto-weight ratio, has given them an advantage in the automotive industry. To further improve casting quality, many have turned to semi-solids, where alloys exhibit flow properties that stem from the material's dual liquid-solid nature and globular microstructure. The SEED (Swirled Enthalpy Equilibration Device) process is a novel rheocasting technology yielding a semi-solid slurry from the mechanical agitation (swirling) and cooling of molten aluminum. In the current work, a SEED processed 357-T6 alloy displayed typical yield and ultimate tensile strength values of 210-250 and 300-320 MPa, respectively. Furthermore, the average elongation observed was 12-17%.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NRC number53441
NPARC number18488545
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Record identifier76d3a7d9-967b-4545-b6d4-01e0ae3c6273
Record created2011-10-11
Record modified2016-05-09
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