A Combined Numerical and Experimental Study of the Effects of Controlled Fluid Flow on Alloy Solidification
A quantitative understanding of the effect of fluid flow on the microstructure of cast alloys is still lacking. The application of time dependent magnetic fields during solidification offers the possibility to create defined flow conditions in solidification processing. The effect of rotating magnet...
Gespeichert in:
Veröffentlicht in: | Materials science forum 2006, Vol.519-521, p.1753-1758 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A quantitative understanding of the effect of fluid flow on the microstructure of cast
alloys is still lacking. The application of time dependent magnetic fields during solidification offers
the possibility to create defined flow conditions in solidification processing. The effect of rotating
magnetic fields (RMF) on the microstructure formation in cast Al-alloys (Al-7wt.%Si, Al-7wt.%Si-
0.6wt.Mg) is studied experimentally and numerically. The forced fluid flow conditions result in
pronounced macrosegregation effects and affect microstructural parameters. With increasing fluid
flow the primary dendrite spacing decreases whereas the secondary dendrite arm spacing increases.
The experimental analysis is supported by a rigorous application of numerical modeling with the
software package CrysVUn. |
---|---|
ISSN: | 0255-5476 1662-9752 1662-9752 |
DOI: | 10.4028/www.scientific.net/MSF.519-521.1753 |