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

1983-01-20

1984-08-07

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75950, 420550, 419 28, 419 48, 419 60, B22F 314, C22C 2120

Patent

active

044641990

ABSTRACT:
Aluminum alloy atomized powder containing 4 to 15% iron and 1 to 12% 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", Mayfield, J., Aviation Week & Space Technology, Jan. 26, 1981, pp. 46-47, 49.

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