Rapidly solidified aluminum based alloys containing silicon for

Details Rapidly solidified aluminum based alloys containing silicon for Rapidly solidified aluminum based alloys containing silicon for

1987-03-30

1988-03-08

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 38, 419 41, 419 48, 419 60, 420548, 420551, 420552, B22F 300

Patent

active

047297905

ABSTRACT:
A rapidly solidified aluminum-base alloy consists essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b X.sub.c, wherein X is at least one element selected from the group consisting of Mn, V, Cr, Mo, W, Nb, Ta, "a" ranges from 1.5 to 7.5 atom percent, "b" ranges from 0.75 to 9.0 atom percent, "c" ranges from 0.25 to 4.5 atom percent and the balance is aluminum plus incidental impurities, with the proviso that the ratio [Fe+X]:Si ranges from about 2.01:1 to 1.0:1. The alloy exhibits high strength, ductility and fracture toughness and is especially suited for use in high temperature structural applications such as gas turbine engines, missiles, airframes and landing wheels.

REFERENCES:
patent: 3960606 (1976-06-01), Chia et al.
patent: 3961945 (1976-06-01), Sanders et al.
patent: 4135922 (1979-01-01), Cebulak
patent: 4347076 (1982-08-01), Ray et al.
patent: 4615735 (1986-10-01), Ping
patent: 4624705 (1986-11-01), Jatkar et al.
patent: 4629505 (1986-12-01), Paris

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