Rapidly solidified aluminum based, silicon containing alloys...

Details Rapidly solidified aluminum based, silicon containing alloys... Rapidly solidified aluminum based, silicon containing alloys...

C - Chemistry, Metallurgy

22

C

75/34

C22C 21/00 (2006.01) C22C 45/08 (2006.01)

Patent

CA 1330004

ABSTRACT OF THE DISCLOSURE RAPIDLY SOLIDIFIED ALUMINUM BASED SILICON CONTAINING ALLOYS FOR ELEVATED TEMPERATURE APPLICATIONS A rapidly solidified aluminum-base alloy consists essentially of the formula AlbalFeaSibVc, wherein "a" ranges from 3.0 to 7.1 atom percent, "b" ranges from 1.0 to 3.0 atom percent, "c" ranges from 0.25 to 1.25 atom percent and the balance is aluminum plus incidental impurities, with the provisos that i) the ratio [Fe + V]:Si ranges from about 2.33:1 to 3.33:1 and ii) the ratio Fe:V ranges from 11.5:1 to 5:1. The alloy exhibits high strength, ductility and fracture toughness and is especially suited for use in high temperature structural applications such as gas turbine engine components, automotive engine components, missiles and airframes.

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