Aluminum-transition metal alloys made using rapidly solidified p

Details Aluminum-transition metal alloys made using rapidly solidified p Aluminum-transition metal alloys made using rapidly solidified p

1980-10-03

1982-08-31

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75138, 75139, 75144, 75213, 75249, 148 115A, 148 115P, 148 32, C22C 104

Patent

active

043470769

ABSTRACT:
A method of fabricating aluminum alloys containing finely dispersed aluminum-transition metal intermetallic phases is disclosed. The alloys are subjected to melt spinning to form a brittle filament consisting in large measure of a metastable face-centered cubic solid solution; this is then pulverized to a staple or powder configuration; the power or staple is consolidated using conventional techniques. Upon heat treatment, the solid solution decomposes into a structure consisting of an aluminum alloy matrix of conventional composition containing a fine uniform dispersion of the intermetallic phase, the heat-treated alloy being ductile. The heat-treated alloys possess high strength, especially at elevated temperatures. Preferred alloys are disclosed which contain 10 to 15 wt % Fe.

REFERENCES:
patent: 3625677 (1971-12-01), Jones

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