Abstract
In an earlier publication, [1] the occurrence of shrinkage porosity was described by a simple “geometric” model, which was based primarily on experimental data available for low-carbon steel alloys. In this publication, the predictions of the “geometric” model are compared to experimental data for long freezing range alloys. The comparison and a theoretical analysis show that the earlier results do not apply to the solidification of these alloys. A dimensionless group has been developed to characterize the freezing range, the original “geometric” model has been modified, and a new analysis is presented to characterize shrinkage porosity formation in long freezing range alloys.
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Sigworth, G.K., Wang, C. Evolution of porosity in long freezing range alloys. Metall Trans B 24, 365–377 (1993). https://doi.org/10.1007/BF02659139
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DOI: https://doi.org/10.1007/BF02659139