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Mushy-Zone Rayleigh Number to Describe Macrosegregation and Channel Segregate Formation During Directional Solidification of Metallic Alloys

  • R. Tiwari
  • , G. Magadi
  • Cleveland State University
  • American Bureau of Shipping

Research output: Contribution to journalArticlepeer-review

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.

Original languageAmerican English
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume35A
DOIs
StatePublished - Sep 1 2004
Externally publishedYes

Disciplines

  • Materials Science and Engineering

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