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Fluid Flow Effects on Intermetallic Phases in Al-cast Alloys

Steinbach, Sonja and Euskirchen, Natasja and Witusiewicz, Victor and Sturz, Laszlo and Ratke, Lorenz (2007) Fluid Flow Effects on Intermetallic Phases in Al-cast Alloys. In: Transactions of Indian Institute of Metals, 60 (2), pp. 137-141. The Indian Institute of Metals, Metal House, Plot 13/4, Block AQ, Sector V, Salt Lake, Calcutta-700 091. International Conference on Solidification Science and Processing - Emerging Trends (ICSSP-III), 2006-11-19-2006-11-23, Jaipur, India.

Full text not available from this repository.

Official URL: http://www.igcar.ernet.in/transiim/

Abstract

In this paper we present an experimental study of the influence of controlled fluid flow conditions during solidification on the morphology and spatial arrangement of intermetallic phases in the alloy Al-7wt.%Si-1wt.%Fe. The forced convections are induced by a rotating magnetic field with a magnetic induction of 6mT at a frequency of 50Hz. The ternary alloy Al-7wt.%Si-1wt.%Fe and its binary counterpart Al-7wt.%Si are solidified directionally over a range of constant 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 microstructure of the samples: It is found that the coarse alpha-phase (alpha-Al<sub>5</sub>FeSi) platelets, which form during solidification of Al-cast alloys containing Fe, in interaction with the rotating magnetic field change all relations between microstructural parameters like primary and secondary dendrite arm spacing and solidification velocity and time respectively.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Fluid Flow Effects on Intermetallic Phases in Al-cast Alloys
Authors:
AuthorsInstitution or Email of Authors
Steinbach, SonjaUNSPECIFIED
Euskirchen, NatasjaUNSPECIFIED
Witusiewicz, VictorACCESS, Aachen
Sturz, LaszloACCESS, Aachen
Ratke, LorenzUNSPECIFIED
Date:April 2007
Journal or Publication Title:Transactions of Indian Institute of Metals
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:60
Page Range:pp. 137-141
Editors:
EditorsEmail
Dr. Bhanu Sankara Rao, K.UNSPECIFIED
Publisher:The Indian Institute of Metals, Metal House, Plot 13/4, Block AQ, Sector V, Salt Lake, Calcutta-700 091
Status:Published
Keywords:intermetallic phases, Al-Si-Fe, directional solidification, fluid flow, electromagnetic stirring, dendrite spacing, aluminum alloys
Event Title:International Conference on Solidification Science and Processing - Emerging Trends (ICSSP-III)
Event Location:Jaipur, India
Event Type:international Conference
Event Dates:2006-11-19-2006-11-23
Organizer:Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur & MNIT Jaipur, India
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
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:09 Jul 2007
Last Modified:27 Apr 2009 13:19

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