Formation of intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications

US4668470A · kind A · utility

Assignee

• INCO Alloys International, Inc. · US

Inventors

• Paul S. Gilman · Suffern, US
• Arun D. Jatkar · Rochester, US
• Stephen J. Donachie · New Windsor, US
• Winfred L. Woodard, III · Midland Park, US
• Walter E. Mattson · West Milford, US

Key dates

• Filing date: Dec 16, 1985
• Grant date: May 26, 1987
• Expiry date: Dec 16, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C1/047
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for forming intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications. Elemental powders are blended in proportions approximately equal to their respective intermetallic compounds. Heating of the blend results in the formation of intermetallic compounds whereas lack of heating results in intermetallic-type powder without the intermetallic structure. The resultant powder is then blended to form a final alloy. Examples involving aluminum-titanium alloys are discussed.