US4656099A
Expired / Lapsed
US
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Corrosion, erosion and wear resistant alloy structures and method therefor
Assignee: TURINE METAL TECHNOLOGY Inc
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Filing: 1983-09-06
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Granted: 1987-04-07
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Expires: 2003-09-06
Abstract
Abstract High performance alloy structures are improved in corrosion and erosion and wear resistance characteristics by the incorporation of an interdispersed phase and a ternary or quaternary alloy of platinum, rhodium or palladium, the alloy base metal and an alloying element such as aluminum in the structure surface with the use of relatively less of the precious metals for a given depth of case by virtue of the conjoint incorporation of the interdispersed phase.
Inventors
- 👤 George K. Sievers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:53
CPC Classifications
C; C23; C23C; C23C12/00; C23C12/02; C23C10/00; C23C10/28; C23C10/34; C23C10/52; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12458; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12931
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
103 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said particulate matter being selected from tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, chromium, tungsten carbide, tantalum carbide, zirconium carbide, titanium carbide, chromium carbide, molybdenum disilicide, and silicon nitride.
Claim 2
Dependent Claim
103 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said particulate matter being selected from tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, chromium, tungsten carbide, tantalum carbide, zirconium carbide, titanium carbide, chromium carbide, molybdenum disilicide, and silicon nitride.
Claim 3
Dependent Claim
23 words
The alloy structure accoding to claim 1, in which said ternary or quaternary alloy contains rhodium or platinum, nickel or cobalt, and aluminum.
Claim 4
Dependent Claim
78 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed phase of hard carbide discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 5
Dependent Claim
78 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed phase of hard carbide discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 6
Dependent Claim
15 words
The alloy structure according to claim 3, in which the hard carbide is tungsten carbide.
Claim 7
Dependent Claim
92 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating as a separate interdispersed phase in said alloy discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, or chromium.
Claim 8
Dependent Claim
92 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, base metal and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating as a separate interdispersed phase in said alloy discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, or chromium.
Claim 9
Dependent Claim
99 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, or chromium metals, a hard carbide, silicide or nitride.
Claim 10
Dependent Claim
99 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of aluminum, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium, or chromium metals, a hard carbide, silicide or nitride.
Claim 11
Dependent Claim
14 words
The alloy structure according to claim 6, in which rhodium is said precious metal.
Claim 12
Dependent Claim
14 words
The alloy structure according to claim 6, in which platinum is said precious metal.
Claim 13
Dependent Claim
14 words
The alloy structure according to claim 6, in which palladium is said precious metal.
Claim 14
Dependent Claim
35 words
The alloy structure according to claim 6, in which said hard carbide is tungsten carbide, tantalum carbide, zirconium carbide, titanium carbide or chromium carbide, the silicide is molybdenum silicide, and the nitride is silicon nitride.
Claim 15
Dependent Claim
82 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure and distributed within said coating an interdispersed phase of hard carbide discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 16
Dependent Claim
82 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure and distributed within said coating an interdispersed phase of hard carbide discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 17
Dependent Claim
109 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said interdispersed phase matter comprising a metal having an atomic number of 24 or higher and which does not form ternary alloys with said precious metal and said base metal.
Claim 18
Dependent Claim
109 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said interdispersed phase matter comprising a metal having an atomic number of 24 or higher and which does not form ternary alloys with said precious metal and said base metal.
Claim 19
Dependent Claim
92 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed witin said coating an interdispersed phase of discrete particulate matter comprising tungsten carbide, tantalum carbide, zirconium carbide, titanium carbide or chromium carbide in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 20
Dependent Claim
92 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed witin said coating an interdispersed phase of discrete particulate matter comprising tungsten carbide, tantalum carbide, zirconium carbide, titanium carbide or chromium carbide in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary or quaternary alloy.
Claim 21
Dependent Claim
93 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium or chromium.
Claim 22
Dependent Claim
93 words
Cobalt, nickel or iron base alloy structure having a diffusion coating, said coating comprising a ternary or quaternary alloy of base metal, a base metal alloying element, and rhodium, platinum or palladium effective to improve the corrosion resistance properties of said structure, and distributed within said coating an interdispersed separate phase of discrete particulate matter in an amount effective to improve the erosion and wear properties of said structure without reducing the corrosion resistance imparted by said ternary alloy, said discrete particulate matter comprising tungsten, tantalum, molybdenum, zirconium, titanium, hafnium, yttrium or chromium.
Claim 23
Dependent Claim
19 words
The alloy structure according to claim 12, 13, or 14, in which said base metal alloying element is aluminum.
Claim 24
Dependent Claim
16 words
The alloy structure according to claim 15, in which said precious metal is rhodium or platinum.
References Cited (Backward Citations)
US3345197A
Cited
US3290126A
Cited
US3656919A
Cited
US3573963A
Cited
US3819338A
Cited
US3692554A
Cited
US3779719A
Cited
US3957454A
Cited
US3961910A
Cited
US3978251A
Cited
US3979534A
Cited
US4070507A
Cited
US3979273A
Cited
US4123594A
Cited
US4123595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |