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US4389262A
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US
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Amorphous alloys of nickel, aluminum and boron
Assignee: Honeywell International Inc
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Filing: 1980-12-31
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Granted: 1983-06-21
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Expires: 2000-12-31
Abstract
Abstract Amorphous nickel, aluminum, and boron alloys are described. These alloys are characterized by high hardness and high crystallization temperatures.
Inventors
- 👤 Lee E. Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:52
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
An amorphous nickel-base alloy containing aluminum and boron and having an ultimate tensile strength in excess of 3×10 9 Pa, the alloy consisting essentially of a composition which, when plotted on a ternary phase diagram in atomic percent Ni, atomic percent Al and atomic percent B, is represented by a quadrilateral region having at its corners the points defined by: (1) Ni-62, B-33, Al-5; (2) Ni-73, B-22, Al-5; (3) Ni-62, B-13, Al-25; and (4) Ni-52, B-23, Al-25.
Claim 2
Dependent Claim
77 words
An amorphous nickel-base alloy containing aluminum and boron and having an ultimate tensile strength in excess of 3×10 9 Pa, the alloy consisting essentially of a composition which, when plotted on a ternary phase diagram in atomic percent Ni, atomic percent Al and atomic percent B, is represented by a quadrilateral region having at its corners the points defined by: (1) Ni-62, B-33, Al-5; (2) Ni-73, B-22, Al-5; (3) Ni-62, B-13, Al-25; and (4) Ni-52, B-23, Al-25.
Claim 3
Dependent Claim
45 words
The alloy of claim 1 wherein said region is further limited by the equation Ni a B b Al c , wherein a, b, and c are atomic percents and have the following ranges of values: a=60-70 b=20-30, and c=5-20; With the proviso that a+b+c=100.
Claim 4
Dependent Claim
50 words
The alloy of claim 2 wherein said alloy is selected from the group consisting of Ni 65 B 30 Al 5 , Ni 65 B 25 Al 10 , Ni 60 B 20 Al 20 , Ni 65 B 20 Al 15 and Ni 60 B 25 Al 15 .
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) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |