Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Consolidation of powder prior to sintering
Patent
1997-08-25
1999-07-27
Jenkins, Daniel J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Consolidation of powder prior to sintering
419 39, 419 46, 419 47, 419 54, 419 57, 419 60, B22F 312
Patent
active
059305835
ABSTRACT:
This invention relates to a method for forming a titanium alloy by powder metallurgy, which comprises the processes of mixing uniformly a powder of titanium or an alloy thereof with a low-melting point metal or alloy powder, injecting the mixture into a press forming die, then press forming them under heating to a temperature near and over the melting point of the low-melting point metal, or to a temperature between the liquidus and the solidus of the low-melting point alloy, or to a temperature near and over the liquidus to obtain the targeted compact, and holding this compact in the pressurized state to cause the molten low-melting point metal or alloy to infiltrate the powder grain boundary of the titanium or alloy thereof, and then sintering the compact thus obtained in an inert atmosphere or a vacuum to diffuse the titanium or alloy thereof and the low-melting point metal or alloy into each other and to make alloys of them.
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Yasue Kazuo
Yu Gongli
Japan as represented by Director General of Agency of Industrial
Jenkins Daniel J.
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