Method for preparing metallic superalloy articles having...

Details Method for preparing metallic superalloy articles having... Method for preparing metallic superalloy articles having...

2005-08-09

2005-08-09

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Consolidating metalliferous material by agglomerating,...

C419S066000, C420S590000

Reexamination Certificate

active

06926754

ABSTRACT:
An article of a base metal alloyed with an alloying element is prepared by mixing a chemically reducible nonmetallic base-metal precursor compound of a base metal and a chemically reducible nonmetallic alloying-element precursor compound of an alloying element to form a compound mixture. The base metal is nickel, cobalt, iron, iron-nickel, or iron-nickel-cobalt. One or more of the alloying elements are thermophysically melt incompatible with the base metal. The method further includes chemically reducing the compound mixture to a metallic superalloy, without melting the metallic superalloy, and thereafter consolidating the metallic superalloy to produce a consolidated metallic article, without melting the metallic superalloy and without melting the consolidated metallic article.

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Doyle, Eoghan T. M. et al: “Carbothermic reduction of nickel-cobalt-chromium oxide mixture for the production of NiCoCr superalloy powder” EPD Congr. 1992, Proc. Symp. TMS Annu. Meet., 745-58. Editor(s): Hager, John P. Publisher: Miner. Met. Mater. Soc., Warrendale, PA. Coden: 58HHA7, 1992, XP0009029023.

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