The Impact of Partial Drainage on Chemical Composition of 356 Al-Si Alloy


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A novel method is introduced to investigate the macro-segregation in 356 Al-Si alloy. In this method, a portion of the remaining liquid is extracted during solidification of the alloy from the bottom orifice of a cylindrical sample. Different parts of the sample plus the extracted material are chemically analyzed and a good correlation between the chemical composition and the predicted values from binary Al-Si diagram was obtained. Comparing the chemical composition of the decanted alloy in the cast piece with those of the 356 standard range has shown that even with 15% of the liquid extraction, the composition of the alloy is still within the intended range.



Materials Science Forum (Volumes 519-521)

Edited by:

W.J. Poole, M.A. Wells and D.J. Lloyd




S. Nafisi et al., "The Impact of Partial Drainage on Chemical Composition of 356 Al-Si Alloy", Materials Science Forum, Vols. 519-521, pp. 1765-1770, 2006

Online since:

July 2006




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[3] ASTM International Standard Worldwide, Volume 02. 02, Aluminum & Magnesium Alloys, 2004, pp.78-92.