Scale Rules for Macrosegregation during Direct-Chill Casting of Aluminum Alloys
β Scribed by Dmitry G. Eskin; Qiang Du; Laurens Katgerman
- Book ID
- 107441648
- Publisher
- The Minerals, Metals & Materials Society
- Year
- 2008
- Tongue
- English
- Weight
- 419 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1073-5623
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## Abstract The phenomena responsible for the formation of macrosegregations and grain structures during solidification are closely related. We present a model study of macrosegregation formation in an industrial sized (350βmm thick) direct chill (DC) cast aluminum alloy slab. The modeling of these
Duplex grain structure consisting of coarse-cell and fine-cell dendritic grains is frequently found in the central portion of direct-chill cast billets and ingots. Coarse-cell grains are usually considered as free-floating crystals settled to the bottom of the billet sump. These grains are assumed t
A method to simulate temperature and stress fields in solidifying cylindrical ingots during the vertical semicontinuous direct chill casting process is presented in this paper. As the first approximation of the whole process, a steady state in the casting ingot with enough length is examined, and th