Simulation of directional solidification with steep thermal gradients

H. W. Huang, J. C. Heinrich, David R Poirier

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The convection and macrosegregation predicted by a simulation of a directionally solidified binary alloy (Pb-23.2 wt%Sn) are presented, and the simulated macrosegregation is compared with the macrosegregation in an experimental casting. The casting was solidified at a rate of 6 μm s-1 and a thermal gradient of approximately 7.2 × 103 K m-1; such thermal gradients are much greater than those previously simulated. The calculated results showed channels at the vertical casting surfaces and segregated internal pockets in the mushy zone, in agreement with the observation of freckles in the experimental casting.

Original languageEnglish (US)
Pages (from-to)245-259
Number of pages15
JournalModelling and Simulation in Materials Science and Engineering
Volume4
Issue number3
DOIs
StatePublished - 1996

Fingerprint

Solidification
Casting
Thermal gradients
Gradient
gradients
Simulation
simulation
mushy zones
Binary Alloys
Binary alloys
binary alloys
Convection
convection
Vertical
Internal

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)
  • Modeling and Simulation

Cite this

Simulation of directional solidification with steep thermal gradients. / Huang, H. W.; Heinrich, J. C.; Poirier, David R.

In: Modelling and Simulation in Materials Science and Engineering, Vol. 4, No. 3, 1996, p. 245-259.

Research output: Contribution to journalArticle

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