Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Controlled cooling after sintering
Patent
1989-08-07
1990-06-05
Lechert, Jr., Stephen J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Controlled cooling after sintering
419 48, 419 49, 75245, B22F 100
Patent
active
049312537
ABSTRACT:
A method for producing a titanium alloy powder metallurgy article having high resistance to loading and creep at high temperature is described and comprises the steps of simultaneously pressing a preselected quantity of titanium alloy powder at from 15 to 60 ksi and heating the powder to a temperature just below the beta transus temperature of the alloy to promote beta to alpha phase transformation in the alloy, and then slowly cooling the compacted powder under pressure.
REFERENCES:
patent: 3729971 (1973-05-01), Gurganus et al.
patent: 4534808 (1985-08-01), Eylon et al.
patent: 4536234 (1985-08-01), Eylon et al.
patent: 4564501 (1986-01-01), Goldstein
patent: 4714587 (1987-02-01), Eylon et al.
patent: 4810289 (1989-03-01), Hoyer et al.
"Status of Titanium Powder Metallurgy", by Eylon et al., in Industrial Apcations of Titanium and Zirconium: Third Conference, ASTM STP 830, 48-65 (1984).
"Developments in Titanium Powder Metallurgy", Froes et al., J. Metals 32:2, 47-54 (Feb. 1980).
"Powder Metallurgy of Light Metal Alloys for Demanding Applications", Froes et al., J. Metals 36:1, 14-28 (Jan. 1984).
"HIP Compaction of Titanium Alloy Powders at High Pressure and Low Temperature", Eylon et al. (Metal Powder Report 41:4 (Apr. 1986)).
Eylon Daniel
Froes Francis H.
Welsch Gerhard
Lechert Jr. Stephen J.
Nigohosian, Jr. Leon
Scearce Bobby D.
Singer Donald J.
United States of America as represented by the Secretary of the
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