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US4828632A
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Rapidly solidified aluminum based, silicon containing alloys for elevated temperature applications
Assignee: Honeywell International Inc
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Filing: 1987-06-05
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Granted: 1989-05-09
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Expires: 2007-06-05
Abstract
Abstract A rapidly solidified aluminum-base alloy consists essentially of the formula AlbalFeaSibVc, wherein "a" ranges from 3.0 to 7.1 atom percent, "b" ranges from 1.0 to 3.0 atom percent, "c" ranges from 0.25 to 1.25 atom percent and the balance is aluminum plus incidental impurities, with the provisos that (i) the ratio [Fe+V]:Si ranges from about 2.33:1 to 3:33:1 and (ii) the ratio Fe:V ranges from 11.5:1 to 5:1. The alloy exhibits high strength ductility and fracture toughness and is especially suited for use in high temperature structural applications such as gas turbine engine components, automotive engine components, missiles and airframes.
Inventors
- 👤 Colin M. Adam
- 👤 Richard L. Bye
- 👤 Santosh K. Das
- 👤 David J. Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:30
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/002; B22F9/008; C; C22; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C1/0416; C22C45/00; C22C45/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
127 words
An extrusion consolidated from a rapidly solidified aluminum-base alloy consisting essentially of the formula Al ba1 Fe a Si b V c , wherein "a" ranges from 3.0 to 7.1 at %, "b" ranges from 1.0 to 3.0 at %, "c" ranges from 0.25 to 1.25 at % and the balance is aluminum plus incidental impurities, with the provisos that (i) the ratio [Fe+V]:Si ranges from about 2.33:1 to 3.33:1, and (ii) the ratio Fe:V ranges from 11.5:1 to 5:, said alloy having an aluminum solid solution phase containing therein a substantially uniform distribution of dispersed, intermetallic phase precipitates, each of said precipitates being of approximate composition Al 12 (Fe,V) 3 Si, measuring less than about 100 nm in any dimension thereof and having a cubic structure.
Claim 2
Dependent Claim
127 words
An extrusion consolidated from a rapidly solidified aluminum-base alloy consisting essentially of the formula Al ba1 Fe a Si b V c , wherein "a" ranges from 3.0 to 7.1 at %, "b" ranges from 1.0 to 3.0 at %, "c" ranges from 0.25 to 1.25 at % and the balance is aluminum plus incidental impurities, with the provisos that (i) the ratio [Fe+V]:Si ranges from about 2.33:1 to 3.33:1, and (ii) the ratio Fe:V ranges from 11.5:1 to 5:, said alloy having an aluminum solid solution phase containing therein a substantially uniform distribution of dispersed, intermetallic phase precipitates, each of said precipitates being of approximate composition Al 12 (Fe,V) 3 Si, measuring less than about 100 nm in any dimension thereof and having a cubic structure.
Claim 3
Dependent Claim
13 words
An extrusion as recited in claim 1, said extrusion comprising a structural member.
Claim 4
Dependent Claim
27 words
An extrusion as recited in claim 2, wherein said structural member comprises part of a helicopter, missile, air frame gas turbine engine component or automotive engine component.
Claim 5
Dependent Claim
14 words
An extrusion as recited in claim 1, said extrusion comprising an engine control housing.
Claim 6
Dependent Claim
16 words
An extrusion as recited in claim 3, wherein said automotive engine component comprises an intake valve.
Claim 7
Dependent Claim
128 words
A forging compacted from particles of an aluminum base alloy consisting essentially of the formula Al bal Fe a Si b V c , wherei "a" ranges from 3.0 to 7.1 at %, "b" ranges from 1.0 to 3.0 at %, "c" ranges from 0.25 to 1.25 at % and the balance is aluminum plus incidental impurities, with the provisos that (i) the ratio [Fe+V]:Si ranges from about 2.33:1 to 3.33:1, and (ii) the ratio Fe:V ranged from 11.5.1 to 5:1 said consolidated article being composed of an aluminum solid solution phase containing therein a substantially uniform distribution of dispersed, intermetallic phase precipitates, each of said precipitates being of approximate composition Al 12 (Fe,V)Si, measuring less about 100 nm in any dimension thereof and having a cubic structure.
Claim 8
Dependent Claim
128 words
A forging compacted from particles of an aluminum base alloy consisting essentially of the formula Al bal Fe a Si b V c , wherei "a" ranges from 3.0 to 7.1 at %, "b" ranges from 1.0 to 3.0 at %, "c" ranges from 0.25 to 1.25 at % and the balance is aluminum plus incidental impurities, with the provisos that (i) the ratio [Fe+V]:Si ranges from about 2.33:1 to 3.33:1, and (ii) the ratio Fe:V ranged from 11.5.1 to 5:1 said consolidated article being composed of an aluminum solid solution phase containing therein a substantially uniform distribution of dispersed, intermetallic phase precipitates, each of said precipitates being of approximate composition Al 12 (Fe,V)Si, measuring less about 100 nm in any dimension thereof and having a cubic structure.
Claim 9
Dependent Claim
13 words
A forging as recited in claim 6, said forging comprising a structural member.
Claim 10
Dependent Claim
27 words
A forging as recited in claim 7, wherein said structural member comprises part of a helicopter, missile, air frame, gas turbine engine component or automotive engine component.
Claim 11
Dependent Claim
14 words
A forging as recited in claim 7, said forging comprising an engine control housing.
Claim 12
Dependent Claim
22 words
A forging as recited in claim 7, wherein said automotive engine component comprises part of an intake valve, piston or connecting rod.
Claim 13
Dependent Claim
17 words
A forging as recited in claim 8, wherein said gas turbine engine component is a compressor impeller.
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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |