US3907552A
Expired / Lapsed
US
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Nickel base alloys of improved properties
Assignee: Teledyne Inc
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Filing: 1973-03-16
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Granted: 1975-09-23
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Expires: 1993-03-16
Abstract
Abstract A yttrium addition, which may be made in the normal course of vacuum melting, is employed to improve high temperature properties and hot workability of nickel base alloys.
Inventors
- 👤 Richard L Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:33
CPC Classifications
C; C22; C22C; C22C19/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
75 words
A NICKEL BASE ALLOY OF IMPROVED CHARACTERISTICS IN AT LEAST ONE OF STRESS RUPTURE PROPERTIES AND HOT WORKABILITY, SAID ALLOY HAVING A NOMINAL COMPOSITION CONSISTING ESSENTIALLY OF ABOUT 0.04% CARBON, ABOUT 19% CHROMIUM, ABOUT 3.1% MOLYBDENUM, ABOUT 0.9% TITANIUM, ABOUT 0.5% ALUMINUM, ABOUT 18.5% IRON, ABOUT 5.2% COLUMBIUM, AND A BALANCE THAT IS ESSENTIALLY NICKEL EXCEPT FOR AN ADDITION IN SAID ALLOY OF YTTRI UM IN AN AMOUNT RANGING FROM ABOUT 0.02% TO ABOUT 0.15%.
Claim 2
Dependent Claim
75 words
A NICKEL BASE ALLOY OF IMPROVED CHARACTERISTICS IN AT LEAST ONE OF STRESS RUPTURE PROPERTIES AND HOT WORKABILITY, SAID ALLOY HAVING A NOMINAL COMPOSITION CONSISTING ESSENTIALLY OF ABOUT 0.04% CARBON, ABOUT 19% CHROMIUM, ABOUT 3.1% MOLYBDENUM, ABOUT 0.9% TITANIUM, ABOUT 0.5% ALUMINUM, ABOUT 18.5% IRON, ABOUT 5.2% COLUMBIUM, AND A BALANCE THAT IS ESSENTIALLY NICKEL EXCEPT FOR AN ADDITION IN SAID ALLOY OF YTTRI UM IN AN AMOUNT RANGING FROM ABOUT 0.02% TO ABOUT 0.15%.
Claim 3
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 15.5% chromium, about 2.5% titanium, about 0.8% aluminum, about 6.8% iron, about 1.0% columbium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 4
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 15.5% chromium, about 2.5% titanium, about 0.8% aluminum, about 6.8% iron, about 1.0% columbium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 5
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.03% carbon, about 16% chromium, about 1.8% titanium, about 0.2% aluminum, about 41.5% nickel, about 2.9% columbium, and a balance that is essentially iron except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 6
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.03% carbon, about 16% chromium, about 1.8% titanium, about 0.2% aluminum, about 41.5% nickel, about 2.9% columbium, and a balance that is essentially iron except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 7
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 12.5% chromium, about 5.7% molybdenum, about 2.8% titanium, about 0.2% aluminum, about 42.5% nickel, and a balance that is essentially iron except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 8
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 12.5% chromium, about 5.7% molybdenum, about 2.8% titanium, about 0.2% aluminum, about 42.5% nickel, and a balance that is essentially iron except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 9
Dependent Claim
74 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 21.5% chromium, about 9.0% molybdenum, about 0.2% titanium, about 0.2% aluminum, about 2.5% iron, about 4.0% columbium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 10
Dependent Claim
74 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 21.5% chromium, about 9.0% molybdenum, about 0.2% titanium, about 0.2% aluminum, about 2.5% iron, about 4.0% columbium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 11
Dependent Claim
77 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 15% chromium, about 3.0% molybdenum, about 0.6% titanium, about 0.4% aluminum, about 7.0% iron, about 3.0% columbium, about 3.0% tungsten, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 12
Dependent Claim
77 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 15% chromium, about 3.0% molybdenum, about 0.6% titanium, about 0.4% aluminum, about 7.0% iron, about 3.0% columbium, about 3.0% tungsten, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 13
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 7.0% chromium, about 16.8% molybdenum, about 2.5% iron, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 14
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 7.0% chromium, about 16.8% molybdenum, about 2.5% iron, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 15
Dependent Claim
70 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.10% carbon, about 22% chromium, about 9.0% molybdenum, about 1.5% cobalt, about 18.5% iron, about 0.6% tungsten, and a balance that is essentially nickel except for an addition in said alloy yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 16
Dependent Claim
70 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.10% carbon, about 22% chromium, about 9.0% molybdenum, about 1.5% cobalt, about 18.5% iron, about 0.6% tungsten, and a balance that is essentially nickel except for an addition in said alloy yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 17
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.03% carbon, about 28% molybdenum, about 5.5% iron, about 0.4% vanadium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 18
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.03% carbon, about 28% molybdenum, about 5.5% iron, about 0.4% vanadium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 19
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 15.5% chromium, about 16% molybdenum, about 5.5% iron, about 3.8% tungsten, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 20
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 15.5% chromium, about 16% molybdenum, about 5.5% iron, about 3.8% tungsten, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 21
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 5.0% chromium, about 24.5% molybdenum, about 5.5% iron, about 0.3% vanadium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 22
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.06% carbon, about 5.0% chromium, about 24.5% molybdenum, about 5.5% iron, about 0.3% vanadium, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 23
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 22% chromium, about 5.0% molybdenum, about 6.0% iron, about 2.5% copper, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 24
Dependent Claim
68 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.05% carbon, about 22% chromium, about 5.0% molybdenum, about 6.0% iron, about 2.5% copper, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 25
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 28% chromium, about 8.3% molybdenum, about 5.3% copper, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 26
Dependent Claim
65 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.04% carbon, about 28% chromium, about 8.3% molybdenum, about 5.3% copper, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 27
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.08% carbon, about 19% chromium, about 9.8% molybdenum, about 11% cobalt, about 3.2% titanium, about 1.5% aluminum, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
Claim 28
Dependent Claim
71 words
A nickel base alloy of improved characteristics in at least one of stress rupture properties and hot workability, said alloy having a nominal composition consisting essentially of about 0.08% carbon, about 19% chromium, about 9.8% molybdenum, about 11% cobalt, about 3.2% titanium, about 1.5% aluminum, and a balance that is essentially nickel except for an addition in said alloy of yttrium in an amount ranging from about 0.02% to about 0.15%.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |