Segregation of particles and its influence on the morphology of the eutectic silicon phase in Al-7 wt.% Si alloys

Schaffer, PL, Arnberg, L and Dahle, AK (2006) Segregation of particles and its influence on the morphology of the eutectic silicon phase in Al-7 wt.% Si alloys. Scripta Materialia, 54 4: 677-682. doi:10.1016/j.scriptamat.2005.10.016


Author Schaffer, PL
Arnberg, L
Dahle, AK
Title Segregation of particles and its influence on the morphology of the eutectic silicon phase in Al-7 wt.% Si alloys
Journal name Scripta Materialia   Check publisher's open access policy
ISSN 1359-6462
Publication date 2006
Sub-type Article (original research)
DOI 10.1016/j.scriptamat.2005.10.016
Volume 54
Issue 4
Start page 677
End page 682
Total pages 6
Editor Horst Hahn
Place of publication United Kingdom
Publisher Pergamon
Collection year 2006
Language eng
Subject C1
291302 Physical Metallurgy
671004 Castings
Abstract A new modification phenomenon is reported for Al-Si alloys, where the Al-Si eutectic is refined by segregated TiB2 particles. The TiB2 particles are pushed to the Al-Si phase boundary during solidification of the eutectic and it is believed that at high concentrations the TiB2 particles restrict solute redistribution causing refinement of the Si. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keyword Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Casting
Solidification Microstructure
Aluminium Alloys
Modification
Grain-refinement
Aluminum
Nucleation
Titanium
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 07:56:50 EST