Flow of interdendritic liquid and permeability in pb-20 Wt Pct Sn alloys

R. Nasser-Rafi, R. Deshmukh, David R Poirier

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Directionally solidified Pb-20 wt pct Sn alloys of uniform microstructures were produced with various primary and secondary dendrite arm spacings. Permeabilities of these alloys were investigated with approximately 0.19 and 0.29 volume fraction liquid, for flow parallel to the direction of primary dendrite arms. The permeabilities of the samples with approximately 0.19 volume fraction liquid were also obtained for flow normal to the primary dendrite arms. It was found that for flow parallel to the primary dendrite arms, permeability varied with d 1 2 and g L 2 (d1 is the primary arm spacing and gL is the volume fraction of liquid). There appears to be no relation between permeability for this parallel flow and the secondary dendrite arm spacing. For flow perpendicular to the primary dendrite arms, permeability is approximately 0.06 to 0.20 that for parallel flow, and in this case the permeability appears to be strongly dependent upon the secondary dendrite arm spacing.

Original languageEnglish (US)
Pages (from-to)2263-2271
Number of pages9
JournalMetallurgical Transactions A
Volume16
Issue number12
DOIs
StatePublished - Dec 1985

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Parallel flow
dendrites
Flow of fluids
permeability
parallel flow
Volume fraction
liquids
spacing
Liquids
Dendrites (metallography)
Microstructure
microstructure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Mechanics of Materials
  • Engineering(all)

Cite this

Flow of interdendritic liquid and permeability in pb-20 Wt Pct Sn alloys. / Nasser-Rafi, R.; Deshmukh, R.; Poirier, David R.

In: Metallurgical Transactions A, Vol. 16, No. 12, 12.1985, p. 2263-2271.

Research output: Contribution to journalArticle

Nasser-Rafi, R. ; Deshmukh, R. ; Poirier, David R. / Flow of interdendritic liquid and permeability in pb-20 Wt Pct Sn alloys. In: Metallurgical Transactions A. 1985 ; Vol. 16, No. 12. pp. 2263-2271.
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