Aluminum powder alloy product for high temperature application

Details Aluminum powder alloy product for high temperature application Aluminum powder alloy product for high temperature application

1981-11-20

1983-04-12

Rutledge, L. Dewayne

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Special medium during sintering

419 1, 419 48, 420550, B22F 314, C22C 2100

Patent

active

043797199

ABSTRACT:
Aluminum alloy atomized powder containing 4 to 12% iron and 1 to 7% cerium or other rare earth metal, when properly compacted and shaped into a useful article, exhibits very high strength at relatively high temperatures. The iron content exceeds the cerium or rare earth metal content, and the powder may contain refractory elements such as W, Mo and others. The powder is produced by atomizing alloyed molten aluminum, preferably in a nonoxidizing atmosphere, and is compacted to a density approaching 100% under controlled conditions including controlled temperature conditions. The alloy may be subsequently shaped by conventional forging, extruding or rolling processes.

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"Advanced Methods Used in Superalloy Formulation" by Jerry Mayfield, Aviation Week & Space Technology, Jan. 26, 1981, pp. 46-47, 49.

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