Influence of solid fraction on gravity segregation of Sn in A1-20Sn alloy casting

Abstract

Abstract: The influence of solid fraction of AL-20Sn alloy mushy on gravity segregation of Sn in casting was studied and, the relationship between solid fraction and the temperature of alloy mushy and that between solid fraction of alloy mushy and size of Sn particle in ingot were determined. The results show that the relationship between solid fraction and the temperature of alloy mushy was f(s)=1683-4.86t+0.0035t(2). The extent of gravity segregation of Sn in casting reduced gradually with the increasing of solid fraction of alloy mushy. When solid fraction of alloy mushy was larger than 40%, the gravity segregation of Sn in casting could be removed basically, and the relationship between solid fraction of alloy mushy and size of Sn particle in ingot was s=-0.64f(s)+70.8.

Key words:

Peng ZHANG, Yunhui DU, Daben ZENG, Jianzhong CUI, Limin BA. Influence of solid fraction on gravity segregation of Sn in A1-20Sn alloy casting[J]. J Mater Sci Technol, 2000, 16(06): 577-580.

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Influence of solid fraction on gravity segregation of Sn in A1-20Sn alloy casting

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