The Effect of Fluid Flow on the Eutectic Lamellar Spacing View Full Text


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Article Info

DATE

1984-02

AUTHORS

Jin Junze, K. F. Kobayashi, P. H. Shingu

ABSTRACT

The effect of fluid flow on the lamellar spacing of unidirectionally solidified Al-CuAl2 eutectic alloy has been investigated experimentally. It was found that the practical condition for the modification of lamellar spacing can conveniently be given byPe > 1(Pe = Uλ/2D, whereU: flow rate, λ : lamellar spacing,D : solute diffusion coefficient in the melt), when the value ofU at the characteristic distance λ/8 ahead of the solid-liquid interface is used. The theoretical prediction of the relation between λ andv, given by Quenisset and Naslain, λ2v = A/(1 − BGuλ2/D) where Gu is the flow velocity gradient at the solid-liquid interface and v is the solidification rate, was confirmed to be valid. The numerical constantsA andB are determined to be 8.46 x 10-17 m3 per second and 1.56 × 10-2, respectively. More... »

PAGES

307-312

References to SciGraph publications

  • 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
  • 1979-09. Macrosegregation in a multicomponent low alloy steel in METALLURGICAL AND MATERIALS TRANSACTIONS B
  • 1981-02. Solutal convection induced macrosegregation and the dendrite to composite transition in off-eutectic alloys in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1981-06. Numerical analysis of the influence of convection on off-eutectic solidification 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/bf02645116

    DOI

    http://dx.doi.org/10.1007/bf02645116

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