Article
Mushy-Zone Rayleigh Number to Describe Macrosegregation and Channel Segregate Formation During Directional Solidification of Metallic Alloys
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Document Type
Article
Publication Date
9-1-2004
Disciplines
Abstract
A recently defined mushy-zone Rayleigh number (R-aM) that includes side-branching contributions to the mushy-zone permeability has been examined for its correlation with the longitudinal macrosegregation and channel segregate formation. The Rayleigh number shows (1) a strong correlation between the extent of longitudinal macrosegregation and increase in the mushy-zone convection and (2) a good ability to predict the formation of channel segregates during directional solidification.
DOI
10.1007/s11661-004-0240-3
Version
Publisher's PDF
Publisher's Statement
Copyright 2004 ASM International. This paper was published in Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 35A, Issue 9, pp. 2927-2934 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.Available on publisher's site at: http://www.asminternational.org/portal/site/www/AsmStore/ProductDetails/?vgnextoid=a2ebe0f52b1e5210VgnVCM100000621e010aRCRD.
Citation Information
Tewari, S.N., Tiwari, R., & Magadi, G. (2004). Mushy-Zone Rayleigh Number to Describe Macrosegregation and Channel Segregate Formation During Directional Solidification of Metallic Alloys. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 35A, 2927-2934.