Patent US4152146A successfully refreshed from Google Patents.
US4152146A
Expired / Lapsed
US
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Glass-forming alloys with improved filament strength
Assignee: Honeywell International Inc
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Filing: 1976-12-29
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Granted: 1979-05-01
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Expires: 1996-12-29
Abstract
Abstract Replacing iron with small amounts of molybdenum, i.e., about 1 to 8 atom percent, in a glass-forming alloy consisting essentially of about 9 to 24 atom percent boron, the balance essentially iron and incidental impurities, results in substantial improvement in filament strength.
Inventors
- 👤 Alfred Freilich
- 👤 Sheldon Kavesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:30
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
72 words
A metal alloy that is substantially glassy consisting of about 1 to 8 atom percent molybdenum, about 9 to 24 atom percent boron and the balance essentially iron and incidental impurities having an as-cast filament tensile strength of at least about 300 kpsi, wherein the composition is such that 1.2×10.sup.4 (Mo)+9.3×10.sup.3 (B)-1.4×10.sup.5 (Mo).sup.2 -2.8×10.sup.4 (B).sup.2 ≧880 where (Mo) is the atom fraction of molybdenum and (B) is the atom fraction of boron.
Claim 2
Dependent Claim
72 words
A metal alloy that is substantially glassy consisting of about 1 to 8 atom percent molybdenum, about 9 to 24 atom percent boron and the balance essentially iron and incidental impurities having an as-cast filament tensile strength of at least about 300 kpsi, wherein the composition is such that 1.2×10.sup.4 (Mo)+9.3×10.sup.3 (B)-1.4×10.sup.5 (Mo).sup.2 -2.8×10.sup.4 (B).sup.2 ≧880 where (Mo) is the atom fraction of molybdenum and (B) is the atom fraction of boron.
Claim 3
Dependent Claim
54 words
The glassy alloy of claim 1 consisting of about 2.5 to 6 atom percent Mo, about 13 to 21 atom percent boron and the balance essentially iron and incidental impurities having an as-cast filament strength of at least about 400 kpsi, wherein the composition is such that 1.2×10.sup.4 (Mo)+9.3×10.sup.3 (B)-1.4×10.sup.5 (Mo).sup.2 -2.8×10.sup.4 (B).sup.2 ≧980.
Claim 4
Dependent Claim
32 words
The glassy alloy of claim 1 in which the composition consists of 3.5 to 4.5 atom percent molybdenum, 16 to 18 atom percent boron and the balance essentially iron and incidental impurities.
Claim 5
Dependent Claim
27 words
The glassy metal alloy of claim 3 consisting of about 4 atom percent molybdenum, about 17 atom percent boron and the balance essentially iron and incidental impurities.
References Cited (Backward Citations)
US3871836A
Cited
US3856513A
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US3986867A
Cited
US4067732A
Cited
US4036638A
Cited
US4038073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |