Jet Mixing in Direct-Chill Casting of Aluminum: Crater Effects and its Consequence on Centerline Segregation

Author(s)
Wagstaff, Samuel Robert; Allanore, Antoine
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Abstract
Recent reports have demonstrated the possibility of mitigating macrosegregation during the Direct-Chill casting of rolling slab ingots using an impinging jet. Herein, an analytical model is presented to predict the shape of the crater formed due to the impact of the jet on the slurry region. The model takes into account alloy composition, physical dimension, and casting speed on the distribution of forces and crater shape. The calculated shape of the crater profile is used to explain the centerline depletion in the impingement region previously reported.
Date issued
2017-05
URI
http://hdl.handle.net/1721.1/110506
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Metallurgical and Materials Transactions B
Publisher
Springer US
Citation
Wagstaff, Samuel R., and Antoine Allanore. “Jet Mixing in Direct-Chill Casting of Aluminum: Crater Effects and Its Consequence on Centerline Segregation.” Metallurgical and Materials Transactions B 48.4 (2017): 2114–2122.
Version: Author's final manuscript
ISSN
1073-5615
1543-1916
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