Process for making rhenium-containing alloys

Details Process for making rhenium-containing alloys Process for making rhenium-containing alloys

1998-05-04

2000-03-21

Yee, Deborah

Alloys or metallic compositions

Processes

420 83, 420433, 420455, 420435, 420440, 420129, C22C 103

Patent

active

060399201

ABSTRACT:
A process for making iron, cobalt and/or nickel base alloys containing rhenium. The process involves melting together the components that form the alloys, at least one of the components being a rhenium master alloy having 30 to 70 wt % rhenium, then casting the resultant melt and allowing the melt to solidify. Possible difficulties such as the formation of rhenium heptoxide are avoided by using a master alloy containing (i) rhenium and (ii) iron, cobalt and/or nickel, instead of sintered rhenium as the rhenium source during the melting step.

REFERENCES:
patent: 4119458 (1978-10-01), Moore
Lazareno, V.V., Parishin, A.P., Shatalov, V.V., "Rhenium Based Alloy Agent Containing Molybdenum, Nickel Aluminum Increase Ingot Yield Assimilate Rhenium Produce Refractory Nickel", May 27, 1996, Derwent Abstract of SU 1 804 141, AN 97-064178.
Barmin, Yu. V., Obintsev, Yu A., Zolotukhin, I.V., "Amorphus Binary Alloy Containing Rhenium and Iron is Melted Using Ion Plasma Sputtering in High Purity Argon Atmosphere and Has Improved Thermal Stability", Jun. 15, 1993, Derwent Abstract of SU 1 464 500, AN 94-309220.

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