Minimization of Macrosegregation in DC Cast Ingots Through Jet Processing
Author(s)
Wagstaff, Samuel Robert; Allanore, Antoine
Download11663_2016_718_ReferencePDF.pdf (1.132Mb)
OPEN_ACCESS_POLICY
Open Access Policy
Creative Commons Attribution-Noncommercial-Share Alike
Terms of use
Metadata
Show full item recordAbstract
With an increase in demand for aluminum alloys, industrial suppliers are seeking to increase the size and speed of casting processes. Unfortunately operating the existing Direct-Chill (DC) process in such conditions tends to enhance metallurgical defects. Perhaps the most recognized of these defects is macrosegregation, whose effects are permanent once the material is solidified. In order to facilitate the expansion of the DC process without increasing the presence of macrosegregation, a novel jet mixing method to distribute the liquid metal is presented. The governing equations for this process are derived and the operating parameters necessary to minimize the centerline macrosegregation are predicted. The results of commercial-scale tests are presented, validating the predictive equations and performance of this process.
Date issued
2016-06Department
Massachusetts Institute of Technology. Department of Materials Science and EngineeringJournal
Metallurgical and Materials Transactions B
Publisher
Springer US
Citation
Wagstaff, Samuel R., and Antoine Allanore. “Minimization of Macrosegregation in DC Cast Ingots Through Jet Processing.” Metallurgical and Materials Transactions B 47.5 (2016): 3132–3138.
Version: Author's final manuscript
ISSN
1073-5615
1543-1916