US4073648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic prealloyed powder
Assignee: Huntington Alloys Corp
•
Filing: 1975-09-04
•
Granted: 1978-02-14
•
Expires: 1995-09-04
Abstract
Abstract Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.
Inventors
- 👤 Timothy E. Volin
- 👤 John S. Benjamin
- 👤 Jay M. Larson
- 👤 Robert L. Cairns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:34
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/12; B22F3/14; B22F9/00; B22F9/02; B22F9/04; B22F2009/041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
As a new article of manufacture, a solid metal body formed from superalloy prealloyed powder containing from up to 60% chromium, up to 30% cobalt, up to 10% aluminum, up to 8% titanium, up to 30% molybdenum, up to 25% tungsten, up to 10% columbium, up to 10% tantalum, up to 7% zirconium, up to 0.5% boron, up to 5% hafnium, up to 2% vanadium, up to 6% copper, up to 5% manganese, up to 70% iron, up to 4% silicon and the balance essentially nickel, a. the said powder being in the strain energy induced condition with a Thermoplastic Physical Characteristic of at least TPC-1, and b. hot consolidated at a temperature above its recrystallization temperature, to thereby give a hot consolidated solid metal body, c. the solid metal body being characterized by fine grains as a consequence of strain energy having been imparted to the superalloy powder prior to hot consolidating above the recrystallization temperature.
Claim 2
Dependent Claim
157 words
As a new article of manufacture, a solid metal body formed from superalloy prealloyed powder containing from up to 60% chromium, up to 30% cobalt, up to 10% aluminum, up to 8% titanium, up to 30% molybdenum, up to 25% tungsten, up to 10% columbium, up to 10% tantalum, up to 7% zirconium, up to 0.5% boron, up to 5% hafnium, up to 2% vanadium, up to 6% copper, up to 5% manganese, up to 70% iron, up to 4% silicon and the balance essentially nickel, a. the said powder being in the strain energy induced condition with a Thermoplastic Physical Characteristic of at least TPC-1, and b. hot consolidated at a temperature above its recrystallization temperature, to thereby give a hot consolidated solid metal body, c. the solid metal body being characterized by fine grains as a consequence of strain energy having been imparted to the superalloy powder prior to hot consolidating above the recrystallization temperature.
Claim 3
Dependent Claim
27 words
An article of manufacture in accordance with claim 1 in which the strain energy induced superalloy prealloyed powder has a Thermoplastic Physical Characteristic of at least TPC-2.
Claim 4
Dependent Claim
27 words
An article of manufacture in accordance with claim 1 in which the strain energy induced superalloy prealloyed powder has a Thermoplastic Physical Characteristic of at least TPC-3.
Claim 5
Dependent Claim
47 words
An article of manufacture in accordance with claim 1 in which the superalloy prealloyed powder is from the group consisting of the alloys IN-100, IN-738, IN-792, Rene alloys 41 and 95, Waspaloy, Astroloy, Alloys 500, 700, 713 and 718, Mar-M alloys 200 and 246 and Alloy A-286.
Claim 6
Dependent Claim
87 words
As a new article of manufacture, a solid metal body formed from prealloyed powder particles, a. the powder particles being in the strain energy induced condition with a Thermoplastic Physical Characteristic of at least TPC-1, and b. hot consolidated at a temperature above its recrystallization temperature to thereby give the desired hot consolidated solid metal body, c. the solid metal body being characterized by fine grains as a consequence of strain energy having been imparted to the superalloy powder prior to hot consolidating above the recrystallization temperature.
Claim 7
Dependent Claim
87 words
As a new article of manufacture, a solid metal body formed from prealloyed powder particles, a. the powder particles being in the strain energy induced condition with a Thermoplastic Physical Characteristic of at least TPC-1, and b. hot consolidated at a temperature above its recrystallization temperature to thereby give the desired hot consolidated solid metal body, c. the solid metal body being characterized by fine grains as a consequence of strain energy having been imparted to the superalloy powder prior to hot consolidating above the recrystallization temperature.
Claim 8
Dependent Claim
18 words
An article of manufacture in accordance with claim 5 in which the prealloyed powder is a titanium-base alloy.
Claim 9
Dependent Claim
23 words
An article of manufacture in accordance with claim 5 in which the prealloyed powder is from the group of cobalt-base and nickel-base alloys.
Claim 10
Dependent Claim
18 words
An article of manufacture in accordance with claim 5 in which the prealloyed powder is a refractory alloy.
References Cited (Backward Citations)
US3519503A
Cited
US3591362A
Cited
US3728088A
Cited
US3671230A
Cited
GB1298944A
Cited
US3631583A
Cited
US3639179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |