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

TitleCenterline Depletion in Direct-Chill Cast Aluminum Alloys: The Avalanche Effect and Its Consequence for Turbulent Jet Casting
Publication TypeJournal Article
Year of Publication2016
AuthorsWagstaff, SR, Allanore, A
JournalMetallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
Volume47
Issue5
Pagination3139 - 3143
Date Published2016/10//
ISBN Number1073-5615
Keywordsmacrosegregation
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.

Short TitleMetall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci.