Producing nickel-base, cobalt-base, iron-base, iron-nickel-base, or iron-nickel-cobalt-base alloy articles by reduction of nonmetallic precursor compounds and melting

US7604680B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Clifford Earl Shamblen · Cincinnati, US
• Andrew Philip Woodfield · Cincinnati, US
• Eric Allen Ott · Cincinnati, US
• Michael Francis Xavier Gigliotti · Scotia, US

Key dates

• Filing date: Mar 31, 2004
• Grant date: Oct 20, 2009
• Expiry date: Aug 23, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/134
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic base nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt, and at least one alloying element. The nonmetallic precursor compound(s) are chemically reduced to produce an initial metallic particle without melting the initial metallic particle. The initial metallic particle is thereafter melted and solidified to produce the metallic article. The melted-and-solidified metal may be used in the as-cast form, or it may be converted to billet and further worked to the final form.