Patent US3904402A successfully refreshed from Google Patents.
US3904402A
Expired / Lapsed
US
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Composite eutectic alloy and article
Assignee: General Electric Co
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Filing: 1973-06-01
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Granted: 1975-09-09
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Expires: 1993-06-01
Abstract
Abstract A unidirectionally solidified anisotropic metallic composite body of improved stability and high temperature properties is provided with a solid solution matrix of a superalloy of the nickel-base or cobalt-base type and comprising, by weight, at least about 2% Re and less than about 0.8% Ti. Embedded in the matrix is an aligned carbide reinforcing fibrous phase, preferably one selected from carbides of Ta, V or their alloys and mixtures.
Inventors
- 👤 Russell W Smashey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:03
CPC Classifications
C; C22; C22C; C22C49/00; C22C49/02; C22C49/08; C22C19/00; C30; C30B; C30B21/00; C30B21/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
102 words
AN ARTICLE OF MANUFACTURE HAVING AN IMPROCED COMBINATION OF STABILITY AND HIGH TEMPERATURE PROPERTIES COMPRISING A UNIDIRECTIONALLY SOLIDIFIED ANISTROPIC METALIC COMPOSITE BODY COMPRISING: A MATRIX OF A NI-BASE OF CO-BASE SUPERALLOY CONSISTING ESSENTIALLY OF , BY WEIGHT , ABOUT 2- 9, RE AND LESS THAN ABOUT 0.8, TI, ALONG WITH ELEMENTS SELECTED FROM THE FROUP CONSISTING CR, AL, TA, C, NI, CO, W, V, MO, C''O, HF, ZR AND B, THE MATRIX BEING A SOLID SOLUTION, AND AN ALIGNED EUTECTIC REINFORCING FIBROUS PHASE SELECTED FROM CARBIDES OF THE GROUP CONSISTING OF TA, C AND THERE ALLOYS AND MIXTURES EMBEDDED IN THE MARIX.
Claim 2
Dependent Claim
102 words
AN ARTICLE OF MANUFACTURE HAVING AN IMPROCED COMBINATION OF STABILITY AND HIGH TEMPERATURE PROPERTIES COMPRISING A UNIDIRECTIONALLY SOLIDIFIED ANISTROPIC METALIC COMPOSITE BODY COMPRISING: A MATRIX OF A NI-BASE OF CO-BASE SUPERALLOY CONSISTING ESSENTIALLY OF , BY WEIGHT , ABOUT 2- 9, RE AND LESS THAN ABOUT 0.8, TI, ALONG WITH ELEMENTS SELECTED FROM THE FROUP CONSISTING CR, AL, TA, C, NI, CO, W, V, MO, C''O, HF, ZR AND B, THE MATRIX BEING A SOLID SOLUTION, AND AN ALIGNED EUTECTIC REINFORCING FIBROUS PHASE SELECTED FROM CARBIDES OF THE GROUP CONSISTING OF TA, C AND THERE ALLOYS AND MIXTURES EMBEDDED IN THE MARIX.
Claim 3
Dependent Claim
16 words
The article of claim 1 in which the eutectic carbide reinforcing fibrous phase is predominantly TaC.
Claim 4
Dependent Claim
68 words
The article of claim 1 in which the superalloy is Ni-base consisting essentially of by weight, 3 to less than 10% Cr, 2 to less than 8.6% Al, less than about 0.8% Ti, 3-15% Ta, 0.1 to about 1% C, about 2-7% Re, up to about 10% Co, up to about 10% W, up to about 10% V, up to 3% Mo and less than about 3% Cb.
Claim 5
Dependent Claim
51 words
The article of claim 3 in which the superalloy consists essentially of, by weight, about 3-8% Cr, about 4-7% Al, less than about 0.8% Ti, 5-11% Ta, 0.4-O.8% C, 2-7% Re, up to about 5% Co, up to about 4% W, 2-7% V with the balance essentially Ni and incidental impurities.
Claim 6
Dependent Claim
16 words
The article of claim 4 in which the eutectic carbide reinforcing fibrous phase is predominantly TaVC.
Claim 7
Dependent Claim
43 words
The article of claim 4 in which the superalloy consists essentially of, by weight, 3-6% Cr, 4-7% Al, less than about 0.8% Ti, 7-11% Ta, 0.5-0.7% C, 5-7% Re, 2-4% Co, 2-4% W, 4-7% V with the balance essentially Ni and incidental impurities.
Claim 8
Dependent Claim
34 words
The article of claim 1 in which the superalloy is Co-base and consists essentially of, by weight, up to 20% Cr, 5-20% Ni, up to 8% W, 7-20% Ta, 0.5-1.3% C and 2-9% Re.
Claim 9
Dependent Claim
33 words
The article of claim 7 in which the superalloy consists essentially of, by weight, 10-16% Cr, 7-15% Ni, 1-6% W, 10-15% Ta, 0.5-1% C, 2-6% Re, with the balance Co and incidental impurities.
Claim 10
Dependent Claim
70 words
An alloy capable of developing in a unidirectionally solidified anisotropic article an improved combination of stability and high temperature properties, the alloy comprising a Ni-base or Co-base superalloy consisting essentially of, by weight, about 2-9% Re, less than about 0.8% Ti, 0.4to about 1.3% C and about 3-20% Ta, along with elements selected from the group consisting of Cr, Al, Ni, Co, W, V, Mo, Cb, Hf, Zr and B.
Claim 11
Dependent Claim
70 words
An alloy capable of developing in a unidirectionally solidified anisotropic article an improved combination of stability and high temperature properties, the alloy comprising a Ni-base or Co-base superalloy consisting essentially of, by weight, about 2-9% Re, less than about 0.8% Ti, 0.4to about 1.3% C and about 3-20% Ta, along with elements selected from the group consisting of Cr, Al, Ni, Co, W, V, Mo, Cb, Hf, Zr and B.
Claim 12
Dependent Claim
68 words
The alloy of claim 9 in which the superalloy is Ni-base consisting essentially of, by weight, 3 to less than 10% Cr, 2 to less than 8.6% Al, less than about 0.8% Ti, 3-15% Ta, 0.4 to about 1% C, about 2-7% Re, up to about 10% Co, up to about 10% W, up to about 10% V, up to 3% Mo and less than about 3% Cb.
Claim 13
Dependent Claim
47 words
The alloy of claim 10 consisting essentially of, by weight, about 3-8% Cr, about 4-7% Al, less than about 0.8% Ti, 5-11% Ta, 0.4-0.8% C, 2-7% Re, up to about 5% Co, up to about 4% W, 2-7% V with the balance essentially Ni and incidental impurities.
Claim 14
Dependent Claim
39 words
The alloy of claim 11 consisting essentially of, by weight, 3-6% Cr, 4-7% Al, less than about 0.8% Ti, 7-11% Ta, 0.5-0.7% C, 5-7% Re, 2-4% Co, 2-4% W, 4-7% V with the balance essentially Ni and incidental impurities.
Claim 15
Dependent Claim
33 words
The alloy of claim 9 in which the superalloy is Co-base consisting essentially of, by weight, up to 20% Cr, 5-20% Ni, up to 8% W, 7-20% Ta, 0.5-1.3% C and 2-9% Re.
Claim 16
Dependent Claim
30 words
The alloy of claim 13 consisting essentially of, by weight, 10-16% Cr, 7-15% Ni, 1-6% W, 10-15% Ta, 0.5-1% C, 2-6% Re, with the balance essentially Co and incidental impurities.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |