US4363659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-base alloy resistant to wear
Assignee: Stoody Co
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Filing: 1979-06-04
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Granted: 1982-12-14
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Expires: 1999-06-04
Abstract
Abstract A nickel-base alloy resistant to wear is disclosed. The alloy contains as its principal elements chromium, molybdenum, silicon, boron and carbon. The alloy, when composed of the elements in the proportions as taught, provides an outstanding combination of engineering properties including abrasive and adhesive wear, corrosion resistance, hot hardness and impact strength. This combination of properties is essential when the alloy is used in certain suggested forms including internal combustion engine parts, fluid valve parts, gas and steam turbine parts and chain saw guide components.
Inventors
- 👤 Anthony J. Hickl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033; B23K35/304
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
79 words
An alloy with an outstanding combination of engineering properties including impact strength, corrosion resistance, hot hardness, and abrasive and adhesive wear resistance consisting essentially of, in weight percent: chromium 24 to 32, molybdenum 4 to about 7, silicon 0.6 to 2.0, carbon 0.6 to 1.8, boron 0.2 to 1.0, tungsten up to one-half the molybdenum content, iron up to 5, manganese up to 1.0, copper up to 3.0, cobalt 0.35 to 5.0 and the balance nickel and incidental impurities.
Claim 2
Dependent Claim
79 words
An alloy with an outstanding combination of engineering properties including impact strength, corrosion resistance, hot hardness, and abrasive and adhesive wear resistance consisting essentially of, in weight percent: chromium 24 to 32, molybdenum 4 to about 7, silicon 0.6 to 2.0, carbon 0.6 to 1.8, boron 0.2 to 1.0, tungsten up to one-half the molybdenum content, iron up to 5, manganese up to 1.0, copper up to 3.0, cobalt 0.35 to 5.0 and the balance nickel and incidental impurities.
Claim 3
Dependent Claim
17 words
The alloy of claim 1 wherein the ratio of carbon to boron is between 4:1 and 4:3.
Claim 4
Dependent Claim
56 words
The alloy of claim 1 containing chromium 25.5 to 29, molybdenum 4.3 to 7, silicon 0.60 to 1.0, carbon 0.75 to 1.29, boron 0.4 to 0.82, tungsten up to one-half the molybdenum content, iron up to 3.2, manganese up to 1.0, copper up to 3.0, cobalt 0.35 to 5.0, and the balance nickel and incidental impurities.
Claim 5
Dependent Claim
44 words
The alloy of claim 2 containing chromium about 29, molybdenum about 6, silicon about 1.0, carbon about 1.1, boron about 0.6, tungsten, iron and copper each up to 3.0, manganese up to 1.0, cobalt 0.35 to 5 and the balance nickel and incidental impurities.
Claim 6
Dependent Claim
44 words
The alloy of claim 1 containing chromium about 27, molybdenum about 6.5, silicon about 0.8, carbon about 0.8, boron about 0.7, tungsten, iron and copper each up to 3.0, manganese up to 1, cobalt 0.35 to 5 and the balance nickel and incidental impurities.
Claim 7
Dependent Claim
17 words
The alloy of claim 1 in the form of a material for use in making hardfacing deposits.
Claim 8
Dependent Claim
18 words
An article wherein at least the surface of said article is composed of the alloy of claim 1.
Claim 9
Dependent Claim
31 words
The article of claim 7 in the form of one of the group internal combustion engine part, fluid valve part, gas turbine part, steam turbine part and chain saw guide component.
Claim 10
Dependent Claim
11 words
The alloy of claim 5 in the form of tube wire.
References Cited (Backward Citations)
US3918964A
Cited
US4188209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-13 | 1986-06-14 | 1986-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-13 | 1990-06-14 | 1990-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-13 | 1994-06-14 | 1994-12-14 | $7700.00 | Window Closed / Lapsed |