Centerline Depletion in Direct-Chill Cast Aluminum Alloys: The Avalanche Effect and Its Consequence for Turbulent Jet Casting

Author(s)
Wagstaff, Samuel R.; Allabire, Antoine; Allanore, Antoine; Wagstaff, Samuel Robert
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Abstract
Avalanche dynamics of sedimenting grains in direct-chill casting of aluminum ingots is investigated as a primary driving force for centerline segregation. An analytical model predicting the importance of avalanche events as a function of casting parameters is proposed and validated with prior art results. New experimental results investigating the transient and steady-state centerline segregation of DC casting with a turbulent jet are reported.
Date issued
2016-07
URI
http://hdl.handle.net/1721.1/110159
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Metallurgical and Materials Transactions B
Publisher
Springer-Verlag
Citation
Wagstaff, Samuel R. and Antoine Allanore. "Centerline Depletion in Direct-Chill Cast Aluminum Alloys: The Avalanche Effect and Its Consequence for Turbulent Jet Casting." Metallurgical and Materials Transactions B 47, issue 5 (October 2016): pp. 3139-3143.
Version: Author's final manuscript
ISSN
1073-5615
1543-1916
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