US4255189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low metalloid containing amorphous metal alloys
Assignee: Honeywell International Inc
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Filing: 1979-09-25
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Granted: 1981-03-10
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Expires: 1999-09-25
Abstract
Abstract Glassy iron, nickel and cobalt rich alloys that contain at least one of molybdenum, tungsten, titanium, chronium and vanadium, together with low boron content, are disclosed. The alloys consist essentially of about 3 to 10 atom percent boron, about 3 to 25 atom percent of at least one member selected from the group consisting of molybdenum, tungsten, titanium, chromium and vanadium, and about 72 to 86 atom percent of at least one member selected from the group consisting of iron, nickel, cobalt and manganese. The glassy alloys are readily formed in the amorphous state and are characterized by high hardness, high yield strengths and excellent thermal stability.
Inventors
- 👤 Ranjan Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:47
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/008
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
36 words
A substantially amorphous alloy consisting essentially of about 66-70 atom percent iron, about 8-10 atom percent boron, about 8-12 atom percent molybdenum and about 3-14 atom percent of one or more of nickel, cobalt and chromium.
Claim 2
Dependent Claim
36 words
A substantially amorphous alloy consisting essentially of about 66-70 atom percent iron, about 8-10 atom percent boron, about 8-12 atom percent molybdenum and about 3-14 atom percent of one or more of nickel, cobalt and chromium.
Claim 3
Dependent Claim
38 words
An alloy as recited in claim 1, having a composition selected from the group consisting of Fe 70 Ni 7 Co 7 Mo 8 B 8 and Fe 66 Ni 8 Cr 6 Mo 12 B 8 .
Claim 4
Dependent Claim
40 words
A substantially amorphous alloy, consisting essentially of about 60-66 atom percent iron, about 5-10 atom percent nickel, about 6-10 atom percent of one or more of chromium and cobalt, about 8-15 atom percent molybdenum and about 8-10 atom percent boron.
Claim 5
Dependent Claim
40 words
A substantially amorphous alloy, consisting essentially of about 60-66 atom percent iron, about 5-10 atom percent nickel, about 6-10 atom percent of one or more of chromium and cobalt, about 8-15 atom percent molybdenum and about 8-10 atom percent boron.
Claim 6
Dependent Claim
38 words
An alloy as recited in claim 3, having a composition selected from the group consisting of Fe 62 Ni 5 Mo 15 Cr 10 B 8 and Fe 64 Ni 8 Mo 12 Cr 6 B 10 .
Claim 7
Dependent Claim
39 words
A substantially amorphous alloy, having a composition selected from the group consisting of Fe 65 Ni 10 Co 5 Cr 10 Mo 6 B 4 and Fe 63 Ni 10 Co 5 Cr 10 Mo 6 B 6 .
Claim 8
Dependent Claim
39 words
A substantially amorphous alloy, having a composition selected from the group consisting of Fe 65 Ni 10 Co 5 Cr 10 Mo 6 B 4 and Fe 63 Ni 10 Co 5 Cr 10 Mo 6 B 6 .
References Cited (Backward Citations)
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US4152146A
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US4133682A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |