US3902862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-base superalloy articles and method for producing the same
Assignee: Crucible Materials Corp
•
Filing: 1972-09-11
•
Granted: 1975-09-02
•
Expires: 1992-09-11
Abstract
Abstract A nickel-base superalloy compacted, fully dense article produced by elevated-temperature compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.50 max., chromium 10 to 16, cobalt 7 to 11, molybdenum up to 5, tungsten up to 7, columbium up to 5, tantalum up to 5, hafnium up to 5, with the total content of tungsten + columbium + tantalum + hafnium within the range of 1.0 to 12.0, vanadium up to 5, titanium 1 to 5, aluminum 2 to 6, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Inventors
- 👤 John H Moll
- 👤 August Kasak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:18
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/056
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
A NICKEL-BASE SUPERALLOY COMPACTED, FULLY DENSE ARTICLE PRODUCED BY ELEVATED-TEMPERATURE COMPACTING OF PREALLOYED POWDER PARTICLES CONSISTING ESSENTIALLY OF, IN WEIGHT PERCENT CARBON 0.01 TO 0.40, CHROMIUM 10 TO 16, COBALT 7 TO 11, MOLYBDENUM 1 TO 5, TUNGSTEN 2 TO 7, COLUBIUM UP TO 5, TANTALUM UP TO 5, WITH THE TOTAL CONTENT OF COLUMBIUM + TANTALUM WITHIN THE RANGE OF 0.5 TO 5, VANDADIUM UP TO 5, HAFNIUM UP TO 5, TITANIUM 1 TO 5, ALUMINUM 2 TO 6, BORON 0.001 TO 0.03, ZIRCONIUM 0.01 TO 0.20, BALANCE ESSENTIALLY NICKEL, SAID ARTICLE CHARACTERIZED BY THE ABSENCE OF MONOR PHASE CONCENTRATIONS AT PIOR POWDER-PARTICLE BOUNDARIES.
Claim 2
Dependent Claim
105 words
A NICKEL-BASE SUPERALLOY COMPACTED, FULLY DENSE ARTICLE PRODUCED BY ELEVATED-TEMPERATURE COMPACTING OF PREALLOYED POWDER PARTICLES CONSISTING ESSENTIALLY OF, IN WEIGHT PERCENT CARBON 0.01 TO 0.40, CHROMIUM 10 TO 16, COBALT 7 TO 11, MOLYBDENUM 1 TO 5, TUNGSTEN 2 TO 7, COLUBIUM UP TO 5, TANTALUM UP TO 5, WITH THE TOTAL CONTENT OF COLUMBIUM + TANTALUM WITHIN THE RANGE OF 0.5 TO 5, VANDADIUM UP TO 5, HAFNIUM UP TO 5, TITANIUM 1 TO 5, ALUMINUM 2 TO 6, BORON 0.001 TO 0.03, ZIRCONIUM 0.01 TO 0.20, BALANCE ESSENTIALLY NICKEL, SAID ARTICLE CHARACTERIZED BY THE ABSENCE OF MONOR PHASE CONCENTRATIONS AT PIOR POWDER-PARTICLE BOUNDARIES.
Claim 3
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperature compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.15 to 0.25, chromium 10.5 to 14.5, cobalt 8 to 10, molybdenum 1 to 3, tungsten 3 to 5, tantalum 3 to 5, titanium 3.2 to 5, aluminum 2.2 to 4.2, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Claim 4
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperature compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.15 to 0.25, chromium 10.5 to 14.5, cobalt 8 to 10, molybdenum 1 to 3, tungsten 3 to 5, tantalum 3 to 5, titanium 3.2 to 5, aluminum 2.2 to 4.2, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Claim 5
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperature compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.01 to 0.20, chromium 12 to 16, cobalt 7 to 9, molybdenum 2.5 to 4.5, tungsten 2.5 to 4.5, columbium 2.5 to 4.5, titanium 1.5 to 3.5, aluminum 2.5 to 4.5, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Claim 6
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperature compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.01 to 0.20, chromium 12 to 16, cobalt 7 to 9, molybdenum 2.5 to 4.5, tungsten 2.5 to 4.5, columbium 2.5 to 4.5, titanium 1.5 to 3.5, aluminum 2.5 to 4.5, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Claim 7
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperataure compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.2 to 0.4, chromium 10 to 14, cobalt 9 to 11, molybdenum 1 to 4, tungsten 5 to 7, tantalum 0.5 to 2.5, titanium 2 to 4, aluminum 3.5 to 5.5, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
Claim 8
Dependent Claim
79 words
A nickel-base superalloy compacted, fully dense article produced by elevated-temperataure compacting of prealloyed powder particles consisting essentially of, in weight percent, carbon 0.2 to 0.4, chromium 10 to 14, cobalt 9 to 11, molybdenum 1 to 4, tungsten 5 to 7, tantalum 0.5 to 2.5, titanium 2 to 4, aluminum 3.5 to 5.5, boron 0.001 to 0.03, zirconium 0.01 to 0.20, balance essentially nickel, said article being characterized by the absence of minor phase concentrations at prior powder-particle boundaries.
References Cited (Backward Citations)
US2920956A
Cited
US3343950A
Cited
US3390023A
Cited
US3524744A
Cited
US3561955A
Cited
US3459545A
Cited
US3615376A
Cited
US3671230A
Cited
US3677748A
Cited
US3649256A
Cited
US3681061A
Cited
US3655458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |