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Silicon Particle Precipitation during DC Casting of Al-Si Clad Alloys
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (Materialteknik)ORCID iD: 0000-0002-3622-4247
2010 (English)In: Materials Science Forum, Trans Tech Publications Inc., 2010, 307-313 p.Conference paper, (Refereed)
Abstract [en]

The formation of polyhedral silicon crystals in aluminium 7-9% silicon alloys has been studied both in industrial ingots and in simulation experiments in a Bridgman furnace. It was found that the nucleation temperature and the cooling rate were important factors influencing the amount and size of the polyhedral crystals. To avoid large particles in the as cast material early nucleation have to be suppressed and the phosphorous content should be kept low. Modelling of diffusion-controlled growth of the silicon phase in this type of aluminium-silicon alloys shows how the nucleation temperature influences the morphology of the precipitated sili¬con.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2010. 307-313 p.
Series
Materials Science Forum, ISSN 0255-5476 ; 649
Keyword [en]
Aluminum, DC casting, Silicon, Nucleation, Polyhedral crystals
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:miun:diva-7441DOI: 10.4028/www.scientific.net/MSF.649.307ISI: 000287945200048Scopus ID: 2-s2.0-77955531985ISBN: 978-087849290-9 (print)OAI: oai:DiVA.org:miun-7441DiVA: diva2:127539
Conference
5th International Conference on Solidification and Gravity; Miskolc-Lillafured; 4 September 2008 through 5 September 2008; Code 81394
Projects
Industriutveckling genom ökat materialkunnande
Available from: 2008-12-09 Created: 2008-12-08 Last updated: 2014-11-03Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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