Patent US3775101A successfully refreshed from Google Patents.
US3775101A
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Method of forming articles of manufacture from superalloy powders
Assignee: National Aeronautics and Space Administration
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Filing: 1972-03-10
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Granted: 1973-11-27
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Expires: 1992-03-10
Abstract
Abstract A highly alloyed superalloy material is obtained using prealloyed powders. The material is easily shaped at high temperatures when it becomes superplastic because of its particular microstructure.
Inventors
- 👤 J Freche
- 👤 W Waters
- 👤 R Ashbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:52
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
17 words
A method as claimed in claim 1 wherein the prealloyed powders are formed by inert gas atomization.
Claim 2
Dependent Claim
15 words
A method as claimed in claim 1 wherein the prealloyed powders are a nickel-base alloy.
Claim 3
Dependent Claim
50 words
A method as claimed in claim 3 wherein the nickel-base alloy has a nominal composition in weight percent of 8 percent tantalum, 4 percent tungsten, 4 percent molybdenum, 2.5 percent columbium, 6 percent chromium, 6 percent aluminum, 0.75 percent zirconium, 0.125 percent carbon, 0.004 percent boron, and the balance nickel.
Claim 4
Dependent Claim
28 words
A method as claimed in claim 4 wherein the prealloyed powders are shaped at a strain rate of between about 0.03 to 0.07 inch per inch per minute.
Claim 5
Dependent Claim
16 words
A method as claimed in claim 1 wherein the prealloyed powders are a cobalt base alloy.
Claim 6
Dependent Claim
21 words
A method as claimed in claim 1 wherein the prealloyed powders are consolidated by extruding the prealloyed powders into bar stock.
Claim 7
Dependent Claim
19 words
A method as claimed in claim 1 wherein the prealloyed powders are consolidated while enclosed in a shaped container.
Claim 8
Dependent Claim
18 words
A method as claimed in claim 8 including the step of enclosing the powder in a metallic can.
References Cited (Backward Citations)
US3180012A
Cited
US3361599A
Cited
US3325279A
Cited
US3341325A
Cited
US3384481A
Cited
US3671230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |