Method for making a light metal-rare earth metal alloy

Details Method for making a light metal-rare earth metal alloy Method for making a light metal-rare earth metal alloy

1988-12-29

1991-08-06

Andrews, Melvyn J.

Alloys or metallic compositions

Aluminum base

420405, 420590, 75959, C22C 2306

Patent

active

050376080

ABSTRACT:
A method for making a light metal-rare earth metal alloy comprises adding a pellet to a bath of molten light metal, said pellet consisting essentially of a mixture of light metal powder and rare earth metal-containing compound. Such pellets, which are made under pressures of about 9 ksi or more, are preferably added to molten baths of aluminum, magnesium or combinations thereof. The light metal powders and rare earth metal-containing compounds that are mixed together to form said pellets are preferably substantially similar in terms of median particle size. This method is suitable for aluminothermically reducing scandium oxide to make aluminum-scandium alloy therefrom.

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