Inco Alloys International, Inc.

Frank W Heck

Howard F Merrick

Stephen J Donachie

A dispersion strengthened aluminum-base alloy system is provided which is prepared by mechanical alloying and is characterized by an improved continuation of properties over binary aluminum-lithium alloys. The alloy system contains, by weight, about 0.5% up to about 4% Li, about 0.05 up to about 2% carbon, about 0.1 up to about 3% oxygen, at least one of the elements magnesium or copper in an amount of up to about 5% each, provided the total amount of said magnesium and copper does not exceed about 8%, and a dispersion strengthening agent in the amount of about 2% up to about 8% by volume.

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Ramsey, NJ, United States of America

Frank W Heck