US3807992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
HEAT RESISTANT Ni-Al-Be ALLOYS
Assignee: Toyota Central R&D Labs Inc
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Filing: 1971-12-27
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Granted: 1974-04-30
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Expires: 1991-12-27
Abstract
Abstract A group of three kinds of improved heat resistant alloys containing, Ni, Al and Be as main constituents, the first kind further comprising 0.01 - 4% of at least one of the additional elements Mo, Cr and Co, the second kind further comprising 0.01 to 1% of at least one of the additional elements Ti, Zr, V, Nb, W, Mn and Cu, and the third kind further comprising 0.01 to 4% of at least one of the additional elements Mo, Cr and Co and 0.01 to 1% of at least one of the additional elements Ti, Zr, V, Nb, W, Mn and Cu. These improved heat resistant alloys have excellent antioxidizing and high tensile properties at temperatures between 1,000* and 1,200* C and are highly adapted for use in manufacturing machine parts subjected to high temperatures and severe loads.
Inventors
- 👤 T Ito
- 👤 N Komatsu
- 👤 T Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:29
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
103 words
A heat resistant alloy comprising as its main constituents Ni, Al and Be, wherein the amounts thereof are defined by and included in a polygonal area on a triangular coordinate diagram of Ni, Al and Be, said polygon having the following four apexes in said triangular coordinate diagram, in weight percent; Ni Al Be 86.7 0.1 13.2 86.7 12.9 0.4 67.3 32.3 0.4 85.7 0.1 14.2 said alloy further comprising from 0.01 to 1% by weight, based on the total weight of the alloy, of at least one member selected from the group consisting of Ti, Zr, V, Nb, Ta, W and Mn.
Claim 2
Dependent Claim
133 words
A heat resistant alloy comprising as its main constituents Ni, Al and Be, wherein the amounts thereof are defined by and included in a polygonal area on a triangular coordinate diagram of Ni, Al, and Be, said polygonal having the following four apexes in said triangular coordinate diagram in weight percent: Ni Al Be 86.7 0.1 13.2 86.7 12.9 0.4 67.3 32.3 0.4 85.7 0.1 14.2 said alloy further comprising from 0.01 to 4% by weight, based on tHe total weight of the alloy, of at least one member selected from the group consisting of Mo, Cr and Co and from 0.01 to 1% by weight, based on the total weight of the alloy, of at least one member selected from the group consisting of Ti, Zr, V, Nb, Ta, W and Mn.
Claim 3
Dependent Claim
92 words
A heat-resistant alloy having good anti-oxidizing properties and excellent tensile strength at temperatures higher than 1, 000*C., said alloy consisting of: A. from 96 to 99.99% by weight, based on the weight of the alloy, of Ni, Al and Be, the amount of each of said Ni, Al and Be being defined by and included within the figure ABCD in FIG. 1; and B. from 0.01 to 4% by weight, based on the weight of the alloy, of at least one member selected from the group consisting of Mo, Cr and Co.
Claim 4
Dependent Claim
95 words
A heat-resistant alloy having good anti-oxidizing properties and excellent tensile strength at temperatures higher than 1, 000*C., said alloy consisting of: A. 99 to 99.99% by weight, based on the weight of the alloy, of Ni, Al and Be, the amount of each of said Ni, Al and Be being defined by and included within the figure ABCD in FIG. 1; and B. from 0.01 to 1% by weight, based on the weight of the alloy, of at least one member selected from the group consisting of Ti, Zr, V, Nb, Ti, W and Mn.
Claim 5
Dependent Claim
124 words
A heat-resistant alloy having good anti-oxidizing properties and excellent tensile strength at temperatures higher than 1, 000*C., said alloy consisting of: A. 95 to 99.98% by weight, based on the weight of the alloy, of Ni, Al and Be, the amount of each of said Ni, Al and Be being defined by and included within the figure ABCD in FIG. 1; and B. from 0.01 to 4% by weight, based on the weight of the alloy, of at least one member selected from the group consisting of Mo, Cr and Co and from 0.01 to 1% by weight, based on the weight of the alloy, of at least one member selected from the group consisting of Ti, Zr, V, Nb, Ta, W and Mn.
References Cited (Backward Citations)
US3704182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |