Strontium-silicon-aluminum master alloy

Details Strontium-silicon-aluminum master alloy Strontium-silicon-aluminum master alloy

C - Chemistry, Metallurgy

22

C

53/246, 75/84

C22C 21/00 (2006.01)

Patent

CA 1049297

ABSTRACT OF THE DISCLOSURE A strontium-silicon-aluminum master alloy for modifying the eutectic component of eutectic and hypo-eutictic aluminum- silicon casting alloys comprises 3 to 20 percent by weight strontium, 4 to 28 percent by weight silicon, each of said elements being present throughout the recited ranges, and the balance essentially aluminum. The master alloy is prepared by adding a strontium compound (e.g., a strontium silicide) to molten aluminum at a temperature of between about 1450° and 2100°F.

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