|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Cast Shop Technology
||Circulation of Grains during Ingot Casting
||Carolyn Joseph, Samuel Robert Wagstaff, Antoine Allanore
|On-Site Speaker (Planned)
We have recently proposed a novel method to minimize the degree of centerline segregation in a Direct-Chill (DC) cast aluminum ingot through the use of a turbulent jet . We theorize the functionality of this method relies on the ability of the jet to re-suspend solute poor grains which have settled to the bottom of the molten pool. To date, the presence of these grains has only been acknowledged by theory and post-mortem observations. We have performed a series of experiments in order to sample the re-circulating grains and analyze their shape and chemical composition. By varying the jet power we have also investigated whether the circulating behavior has an influence on the degree of high temperature diffusion of solute elements into individual grains.  S.R. Wagstaff and A. Allanore: Metall Mater Trans B, 2016, vol. 47, pp 1-7.
||Planned: Light Metals