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


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Article Info

DATE

1985-12

AUTHORS

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

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 d12 and gL2 (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. More... »

PAGES

2263-2271

References to SciGraph publications

  • 1970-06. The viscosities of lead, tin, and Pb-Sn alloys in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1978-09. Steady state segregation and heat flow in ESR in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1976-09. Interdendritic fluid flow in a lead-tin alloy in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1981-09. Effect of fluid flow on macrosegregation in axi-symmetric ingots in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1974-12. Specific permeability of partially solidified dendritic networks of Al-Si alloys in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1979-09. Macrosegregation in a multicomponent low alloy steel in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1978-12. Macrosegregation in Rotated Remelted Ingots in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1970-05. Interdendritic fluid flow and macrosegregation; influence of gravity in METALLURGICAL AND MATERIALS TRANSACTIONS B
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    http://scigraph.springernature.com/pub.10.1007/bf02670426

    DOI

    http://dx.doi.org/10.1007/bf02670426

    DIMENSIONS

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