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The Influence of Fluid Flow on Intermetallic Phases in Al-cast Alloys
Steinbach, Sonja and Euskirchen, Natasja and Witusiewicz, Viktor and Sturz, Laszlo and Ratke, Lorenz (2006) The Influence of Fluid Flow on Intermetallic Phases in Al-cast Alloys. In: Materials Science Forum, 519-521, pp. 1795-1800. Trans Tech Publications, Switzerland. International Conference on Aluminum Alloys (ICAA-10), 2006-07-9 - 2006-07-13, Vancouver, Canada. ISBN 0-87849-408-1. ISSN 0255-5476
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Official URL: http://www.scientific.net
Abstract
Technical Al-Si alloys always contain sufficient amounts of Fe and Mn, especially alloys made from scrap. During casting, Fe-containing intermetallics, such as Al-Fe, Al-Fe-Si and Al-Fe-Mn-Si phases, are formed between the aluminum dendrites. Fe and Mn-rich intermetallic phases are well known to be strongly influential on mechanical properties in Al-Si alloys. In the present work the influence of controlled fluid flow conditions on the morphology and spatial arrangement on intermetallic phases in cast Al-Si alloys is characterized. A binary Al-7wt.%Si and a ternary Al-7wt.%Si-1wt.%Fe alloy was solidified under and without the influence of a rotating magnetic field (3mT at 50Hz) over a range of solidification velocities (0.015- 0.18mm/s) at a constant temperature gradient G of 3K/mm. The scientific results reached so far indicate a strong influence of the electromagnetic stirring on the primary dendrite and secondary dendrite arm spacings.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title: | The Influence of Fluid Flow on Intermetallic Phases in Al-cast Alloys | ||||||||||||
| Authors: |
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| Date: | 2006 | ||||||||||||
| Journal or Publication Title: | Materials Science Forum | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Volume: | 519-521 | ||||||||||||
| Page Range: | pp. 1795-1800 | ||||||||||||
| Editors: |
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| Publisher: | Trans Tech Publications, Switzerland | ||||||||||||
| ISSN: | 0255-5476 | ||||||||||||
| ISBN: | 0-87849-408-1 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | Intermetallic phase, aluminides, directional solidification, Al-Si cast alloys | ||||||||||||
| Event Title: | International Conference on Aluminum Alloys (ICAA-10) | ||||||||||||
| Event Location: | Vancouver, Canada | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 2006-07-9 - 2006-07-13 | ||||||||||||
| Organizer: | Department of Materials Engineering, The University of British Columbia, Canada | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Space | ||||||||||||
| HGF - Program Themes: | W FR - Forschung unter Weltraumbedingungen | ||||||||||||
| DLR - Research area: | Space | ||||||||||||
| DLR - Program: | W FR - Forschung unter Weltraumbedingungen | ||||||||||||
| DLR - Research theme (Project): | W - Vorhaben Materialforschung unter Mikro-g (old) | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Materials Physics in Space > Institute of Space Simulation > Center for Solidification of Undercooled Melts (ZEUS) | ||||||||||||
| Deposited By: | Dr.rer.nat. Sonja Steinbach | ||||||||||||
| Deposited On: | 08 Aug 2007 | ||||||||||||
| Last Modified: | 27 Apr 2009 04:42 |
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