US3776704A
Expired / Lapsed
US
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Dispersion-strengthened superalloys
Assignee: Huntington Alloys Corp
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Filing: 1971-05-17
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Granted: 1973-12-04
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Expires: 1991-05-17
Abstract
Abstract Directed to a dispersion-strengthened, nickel-base superalloy produced from mechanically alloyed powder of special composition and characterized, in the consolidated, grain-coarsened condition by coarse elongated grains and by high strength over a wide range of temperatures.
Inventors
- 👤 J Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:16
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0026; B; B22; B22F; B22F9/00; B22F9/02; B22F9/04; B22F2009/041; B22F2009/043; Y; Y10; Y10S; Y10S75/00; Y10S75/95; Y10S75/951; Y10S75/956; Y10T; Y10T428/00; Y10T428/12; Y10T428/12181
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
39 words
An alloy in accordance with claim 1 containing, by weight, about 5 percent aluminum, about 2 percent titanium, about 12.5 percent chromium, about 6 percent cobalt, about 4.5 percent molybdenum, about 0.1 percent zirconium and about 0.01 percent boron.
Claim 2
Dependent Claim
28 words
An alloy in accordance with claim 1 wherein said dispersoid is a refractory oxide from the group consisting of yttria, ceria, panthana, thoria, or rare earth oxide mixtures.
Claim 3
Dependent Claim
23 words
An alloy in accordance with claim 2 wherein the dispersoid is yttria having a particle size of about 10 to about 1,000 Angstroms.
Claim 4
Dependent Claim
156 words
Mechanically alloyed metal powder of substantially saturation hardness, said powder having an average particle size of at least about 25 microns ahd having a composition consisting essentially of, by weight, about 4 percent to about 6 percent aluminum, about 1 percent to about 3 percent titanium, about 10 percent to about 15 percent chromium, about 3 percent to about 15.4 percent cobalt, up to about 6 percent of at least one element from the group consisting of molybdenum and tungsten, less than about 0.15 percent carbon, up to about 2 percent tantalum, up to about 2 percent niobium, up to about 1 percent hafnium, about 0.05 percent to about 0.5 percent zirconium, about 0.001 percent to about 0.015 percent boron, of a refractory oxide dispersoid having a particle size less than about 1,000 Angstroms in a volume amount equivalent to about 0.5 percent to about 2 percent, by weigth, of yttria and the balance essentially nickel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |