Sintered powdered titanium alloy and method of producing the sam

Details Sintered powdered titanium alloy and method of producing the sam Sintered powdered titanium alloy and method of producing the sam

1995-01-11

1996-05-28

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419 12, B22F 316

Patent

active

055208797

ABSTRACT:
A sintered titanium alloy is composed of a titanium matrix or titanium alloy matrix and hard particles dispersed in the matrix, the sintered titanium alloy comprises: 4-8 mass % of aluminum (Al); 2-6 mass % of vanadium (V); 0.15-0.8 mass % of oxygen (O); at least one element selected from the group consisting of 0.2-9 mass % of boron (B), 0.5-3 mass % of at least one of molybdenum (Mo), tungsten (W), tantalum (Ta), zirconium (Zr), niobium (Nb), and hafnium (Hf), 0.05-2 mass % of at least one of Ia Group elements, IIa Group elements, and IIIa Group elements, 0.05-0.5 mass % of at least one of halogens; with the balance being titanium (Ti) and inevitable impurities. A method for economically producing a high-density sintered titanium alloy comprises mixing a raw material powder composed of a titanium powder and a powder for solid-solution hardening, rubbing and pressing the titanium powder before, during or after the mixing, so as to cause the raw material powder to have a desired tap density, compacting the mixed powder, and sintering the green compact under no pressure.

REFERENCES:
Dixon, et al, "Powder Metallurgy for Engineers" Machinery Publishing Co. Ltd., 1971, pp. 30-47.

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