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Modelling and simulation of equiaxed dendritic structures permeability for Pb-Sn alloys

Mirbagheri, M. H ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1179/174328407X236931
  3. Publisher: 2008
  4. Abstract:
  5. In this investigation, the permeability of interdendritic liquid flow through the equiaxial mushy zone has been modelled for Pb-Sn alloys based on experimental measurements. In the present work by solving Navier-Stokes equation, the flow pattern around the equiaxed dendrite has been obtained and then permeability has been determined by applying Darcy's law. Numerical determined values of permeabilities have been analysed by the use of Statistical Package for the Social Sciences (SPSS) statistical software. Then an experimental method has been used to measure the permeability for flow through equiaxial mushy zone of Pb-Sn alloys. Results show that increasing the solid fraction and perturbation decreases the permeability, but unlike the solid fraction, perturbation has less effect on permeability. It seems that the empirical relationship presented in this article could be used to estimate permeability in the mushy Pb-Sn alloys. © 2008 Institute of Materials, Minerals and Mining
  6. Keywords:
  7. Alloys ; Capillarity ; Cerium alloys ; Dendrimers ; Dendrites (metallography) ; Flow patterns ; Fluid dynamics ; Groundwater flow ; Lead ; Lead alloys ; Metallic compounds ; Navier Stokes equations ; Solids ; Tin ; Tin alloys ; Darcy's laws ; Dendritic structures ; Equiaxed dendrite ; Equiaxed dendrites ; Experimental measurements ; Experimental methods ; Interdendritic flow ; Liquid flows ; Modelling and simulations ; Mushy alloy ; Mushy zones ; Permeability ; Sn alloys ; Solid fractions ; Statistical packages ; Statistical softwares ; Liquids
  8. Source: Materials Science and Technology ; Volume 24, Issue 12 , 2008 , Pages 1444-1451 ; 02670836 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1179/174328407X236931