Permeability for flow of liquid through equiaxial mushy zones

D. R. Poirier; P. Ocansey

doi:10.1016/0921-5093(93)90410-G

Permeability for flow of liquid through equiaxial mushy zones

D. R. Poirier, P. Ocansey

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

An experimental method for measuring the permeability for flow through equiaxial mushy zones of PbSn alloys was devised. With PbSn alloys, dendritic structures could be maintained during the permeability tests. The volume fraction of liquid was varied from 0.31 to as high as 0.49. With the results presented as dimensionless permeabilities, reasonably good agreement among globular, dendritic-globular, and dendritic microstructures was obtained for previous data on borneol-paraffin and Al-15.6wt.%Cu alloys, and the PbSn alloys studied herein. The empirical data agree approximately with the analytical results for flow through regular arrays of spheres, which suggests that the analytical results can be used for extrapolations of permeability when g_L > 0.49.

Original language	English (US)
Pages (from-to)	231-240
Number of pages	10
Journal	Materials Science and Engineering A
Volume	171
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-5093(93)90410-G
State	Published - Nov 1 1993

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Permeability for flow of liquid through equiaxial mushy zones",

abstract = "An experimental method for measuring the permeability for flow through equiaxial mushy zones of PbSn alloys was devised. With PbSn alloys, dendritic structures could be maintained during the permeability tests. The volume fraction of liquid was varied from 0.31 to as high as 0.49. With the results presented as dimensionless permeabilities, reasonably good agreement among globular, dendritic-globular, and dendritic microstructures was obtained for previous data on borneol-paraffin and Al-15.6wt.%Cu alloys, and the PbSn alloys studied herein. The empirical data agree approximately with the analytical results for flow through regular arrays of spheres, which suggests that the analytical results can be used for extrapolations of permeability when gL > 0.49.",

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AU - Poirier, D. R.

AU - Ocansey, P.

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N2 - An experimental method for measuring the permeability for flow through equiaxial mushy zones of PbSn alloys was devised. With PbSn alloys, dendritic structures could be maintained during the permeability tests. The volume fraction of liquid was varied from 0.31 to as high as 0.49. With the results presented as dimensionless permeabilities, reasonably good agreement among globular, dendritic-globular, and dendritic microstructures was obtained for previous data on borneol-paraffin and Al-15.6wt.%Cu alloys, and the PbSn alloys studied herein. The empirical data agree approximately with the analytical results for flow through regular arrays of spheres, which suggests that the analytical results can be used for extrapolations of permeability when gL > 0.49.

AB - An experimental method for measuring the permeability for flow through equiaxial mushy zones of PbSn alloys was devised. With PbSn alloys, dendritic structures could be maintained during the permeability tests. The volume fraction of liquid was varied from 0.31 to as high as 0.49. With the results presented as dimensionless permeabilities, reasonably good agreement among globular, dendritic-globular, and dendritic microstructures was obtained for previous data on borneol-paraffin and Al-15.6wt.%Cu alloys, and the PbSn alloys studied herein. The empirical data agree approximately with the analytical results for flow through regular arrays of spheres, which suggests that the analytical results can be used for extrapolations of permeability when gL > 0.49.

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Permeability for flow of liquid through equiaxial mushy zones

Abstract

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