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1 Archives of Foundry Engineering

1 2008

1 Lipiński T.

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Influence of modifier on base Al and Si on structure and elongation Al-7%Si alloy

100%

Lipiński T.

tom Vol. 8, iss. 3s

55--58

A homogenous modifier with Al and Si obtained by the rapid solidification at a cooling rate equal to v=200 K/s was applied to the modification of the Al-7%Si alloy. The different modifiers were obtained by means of the Al-Si alloys. The components Al, Al-7%Si and Al-12%Si were put into crucible containing the liquid Al-7%Si alloy and kept for one minute to obtain a new homogenous alloy which after break-up was homogenous modifier. Both, effect of cooling rate applied to obtain modifier and weight in weight modifier concentration in the melt on structure and elongations of Al-7%Si alloy are determined. A structural, and elongations resulting from the Al-7%Si alloy treatment by modifiers are studied in details.