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6569269 |
Process for producing a high and low pressure integrated turbine rotor
In CrMoV based heat resistant steels and tungsten-containing CrMoV based heat resistant steels, trace impurities, such as phosphorus, sulfur, copper, aluminum, arsenic, tin, and antimony are...
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6565990 |
Bonded niobium silicide and molybdenum silicide composite articles and method of manufacture
An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined at a bonded region to the first piece by a diffusion bond. The first piece...
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6562483 |
Method for improving the oxidation-resistance of metal substrates coated with thermal barrier coatings
A method for providing a protective coating on a metal-based substrate is disclosed. The method involves the application of an aluminum-rich mixture to the substrate to form a discontinuous layer...
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6553763 |
Turbocharger including a disk to reduce scalloping inefficiencies
A turbocharger for an internal combustion engine is provided with a compressor having an inlet receiving combustion gas and an outlet; and a turbine drivingly coupled to the compressor. The turbine...
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6551064 |
Laser shock peened gas turbine engine intermetallic parts
An intermetallic article such as a gas turbine engine component and method of manufacture thereof includes a region having compressive residual stresses imparted by laser shock peening (LSP)...
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6542859 |
Method for designing a cyclic symmetric structure
A method for analyzing and designing structures with structural aliasing. The concept of structural aliasing applies in one embodiment of the present invention to structural systems which are...
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6533547 |
Turbine blade
The turbine blade has an internal space through which a coolant fluid is guided and in which stiffening ribs are formed to reinforce and support the external walls. Coolant screens that reduce the...
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6528178 |
High temperature resistant article with improved protective coating bonding and method of manufacturing same
A high temperature resistant article with improved protective coating bonding and method of manufacturing the article is provided. In one embodiment, the high temperature resistant article...
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6517319 |
Gas turbine engine rotor blades
A component for a gas turbine engine having at least one surface, that has been treated by ultrasonic hammer peening so as to provide a region of deep compressive residual stress in the treated...
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6514629 |
Article with hafnium-silicon-modified platinum-aluminum bond or environmental coating
An article such as a gas turbine blade or vane has a superalloy substrate, and a coating system deposited on the substrate. The coating system includes a protective layer overlying the substrate,...
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6499949 |
Turbine airfoil trailing edge with micro cooling channels
The present invention provides active convection cooling through micro channels within or adjacent to a bond coat layer applied to the trailing edge of a turbine engine high pressure airfoil. When...
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6499959 |
Steam turbine high strength tangential entry closure bucket and retrofitting methods therefor
A steam turbine wheel has a male dovetail projecting about its peripheral margin and a gap in the margin. Buckets having bases with complementary female dovetails are disposed in the gap and...
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6497968 |
Oxidation resistant coatings for molybdenum silicide-based composite articles
An environmentally resistant coating comprising silicon, titanium, chromium, and a balance of niobium and molybdenum for turbine components formed from molybdenum silicide-based composites. The...
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6495271 |
Spallation-resistant protective layer on high performance alloys
A method for producing a spallation-resistant aluminum oxide layer on the surface of a superalloy article is described. An aluminum oxide layer is produced, typically under tensile stress, by...
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6490899 |
Method and apparatus for peening tops of cooled blades
A method for peening the tops of cooled blades which include cooling air passage orifices. Peening is performed by mobilization of a plurality of beads in a sealed chamber containing at least one...
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6485845 |
Thermal barrier coating system with improved bond coat
A thermal barrier coating (TBC) system and method for forming the TBC system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor...
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6478537 |
Pre-segmented squealer tip for turbine blades
A turbine blade having a pre-segmented squealer tip is provided. The segment or slots in the squealer tip are located in regions of maximum stress, and reduce cracking of the squealer tip and...
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6474945 |
Flap hinge mechanism, method for manufacturing the same, and flap hinge apparatus
A flap hinge mechanism has a blade-secured portion secured to blade, a flap-secured portion secured to flap, and a coupling portion which couples the blade-secured portion and the flap-secured...
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6468040 |
Environmentally resistant squealer tips and method for making
A cast turbine airfoil to which a squealer tip is added. The turbine airfoil is cast slightly undersize. The squealer tip is comprised of an alloy that is different from the cast alloy of the...
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6461107 |
Turbine blade tip having thermal barrier coating-formed micro cooling channels
The present invention provides for cooling the squealer tip region of a high pressure turbine blade used in a gas turbine engine comprising coating the squealer tip with a metallic bond coat. Micro...
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6461108 |
Cooled thermal barrier coating on a turbine blade tip
A cooling system for cooling of the squealer tip surface region of a high pressure turbine blade used in a gas turbine engine and a method for making a system for cooling of the squealer tip...
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6461507 |
Continuous squeeze-dewatering device
A continuous compression-type dewatering apparatus has a filter chamber ( 3 ), a drive shaft ( 17 ), a vane ( 15 ), and a supply path ( 50 ). The filter chamber ( 3 ) is delineated by an annular...
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6455167 |
Coating system utilizing an oxide diffusion barrier for improved performance and repair capability
A coating is described for use on a superalloy substrate comprising a diffusion barrier as an intermediate layer overlying the substrate and underlying a protective coating having a high aluminum...
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6444332 |
Metallic article having a protective coating and a method of applying a protective coating to a metallic article
A metallic turbine blade ( 10 ) has a protective coating ( 22 ) applied to the shank ( 16 ) and the root ( 18 ) of the turbine blade ( 10 ). The protective coating ( 22 ) comprises a chromized...
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6443700 |
Transpiration-cooled structure and method for its preparation
A structure includes a cooled article having an open-cell solid foam of ceramic or metal cell walls with a porous interconnected intracellular volume therebetween. A source of a pressurized gas is...
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6435835 |
Article having corrosion resistant coating
According to the invention, an article that is exposed to high temperatures, e.g., over 1000° C. during operation is disclosed. In one embodiment, a turbine blade for a gas turbine engine includes...
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6423432 |
High temperature corrosion-resistant and abrasion-resistant coating member, and manufacturing method thereof
A high temperature corrosion-resistant and abrasion-resistant coated member or part which is suitable for use under a severe high temperature corrosive and severe abrasive environment and in flying...
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6419453 |
Steam turbine rotor shaft
The main object of the present invention is to provide a steam turbine rotor shaft whose high-temperature strength is excellent at a selected temperature of 650 degrees C. A steam turbine rotor...
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6410153 |
Nickel based superalloy
A nickel based single crystal superalloy comprising 6-11 wt % cobalt, 4.7-5.7 wt % chromium, 2.4-3.0 wt % molybdenum, 3.0-3.8 wt % tungsten, 3.0-3.8 wt % rhenium, 5.5-7.0 wt % aluminium, 5.0-6.0 wt...
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6410159 |
Self-bonding MCrAly powder
A material useful for forming high temperature coatings. The material contains a MCrAlY powder wherein M is selected from the group consisting of iron, nickel, cobalt, iron-base alloys, nickel-base...
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6402476 |
Turbine blade and a method for its production
A turbine blade and a method for its production. In order to protect the turbine blade from being damaged by particles carried in the gas, surfaces of the turbine blade are melted down to a...
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6394755 |
Enhanced coating system for turbine airfoil applications
A tightly adherent anti-stick coating applied over coated turbine components of gas turbine engines. The tightly adherent coating is an oxide of at least one metal selected from the group...
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6394750 |
Method and detail for processing a stator vane
A method and replacement detail for use in processing a stator vane for a rotary machine are disclosed. Various steps and construction details are developed which promote the ease of carrying out...
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6387526 |
Thermal barrier layer and process for producing the same
A device operable in a temperature environment in excess of about 1250° C. is provided. The device comprises a substrate and a ceramic thermal barrier layer deposited on at least a portion of the...
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6387539 |
Thermal barrier coating having high phase stability
A device ( 10 ) comprising a substrate ( 22 ) having a deposited ceramic thermal barrier coating characterized by a microstructure having gaps ( 28 ) where the thermal barrier coating comprises a...
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6387543 |
Protecting layer
A protective layer for load-transferring contact surfaces of gas turbine components, especially titanium turbine components is capable to take up alternating loads at higher temperatures. The...
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6383658 |
Thermally sprayed coatings having an interface with controlled cleanliness
An article having a layer of metal thermally sprayed over a substrate with a roughened interface at the surface of the substrate applied by a thermal spray process, such as the HVOF process. The...
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6382920 |
Article with thermal barrier coating and method of producing a thermal barrier coating
The article of manufacture, in particular a gas turbine blade, can be exposed to a hot aggressive gas. The article has a base body, to which a respective thermal barrier coating is applied in at...
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6371726 |
Foldable propeller
A foldable propeller for a ship having a hub ( 2 ) for mounting on a drive shaft of the ship, and at least two skew-type blades ( 1 ), each of which is pivotably arranged in the hub ( 2 ) for...
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6364608 |
Partially coated airfoil and method for making
An article comprising an airfoil surface is provided with a thermal insulating outer layer on at least one region, but not all, of the airfoil surface. The region is selected from the airfoil...
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6361835 |
Iron aluminide coating and method of applying an iron aluminide coating
An iron aluminide coating consists essentially of: 5-35% by weight aluminum 15-25% by weight chromium 0.5-10% by weight molybdenum, tungsten, tantalum and niobium 0-0.3% by weight zirconium 0-1%...
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6361878 |
Roughened bond coat and method for producing using a slurry
A method of providing a roughened bond coat, for example in a thermal barrier coating system, comprises providing an oxidation-resistant plasma-sprayed layer onto a substrate and disposing a slurry...
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6355356 |
Coating system for providing environmental protection to a metal substrate, and related processes
A metal article which includes a protective coating system is described. The coating system includes a braze alloy layer and a plasma-sprayed bond coat. The bond coat may lie on top of the braze...
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6352406 |
Method for assessing quality of a coating process and assembly therefor
A method for assessing quality of a coating process includes providing a facsimile assembly, the facsimile assembly having a fixture holding an audit coupon, and coating the facsimile assembly to...
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RE37562 |
Turbine system having more failure resistant rotors and repair welding of low alloy ferrous turbine components by controlled weld build-up
System for repairing worn surfaces of steam turbine components and especially high pressure turbine rotors, are disclosed. These systems include depositing a first layer of weld metal on a worn...
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6345955 |
Bowed nozzle vane with selective TBC
A turbine nozzle includes outer and inner bands between which extend a plurality of vanes for channeling combustion gases. Each of the vanes includes leading and trailing edges, and pressure and...
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6341936 |
FOD inspection of laser shock peened gas turbine engine airfoils
The present invention is a method for operating a gas turbine engine airfoil having leading and trailing edges subject to FOD (foreign object damage) damage. The method includes inspecting the...
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6335105 |
Ceramic superalloy articles
An article includes a substrate formed of a superalloy, a silicon-based ceramic material and a thermally stable silicon diffusion barrier layer. The thermally stable diffusion barrier layer is...
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6331217 |
Turbine blades made from multiple single crystal cast superalloy segments
Large gas turbine blades made from separate cast segments of superalloys are disclosed. The turbine blade is designed such that bond lines between adjacent segments are placed in low stress regions...
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6328530 |
MG alloy member and its use
A Mg alloy member with an anticorrosive coating free from any enviromental load can be produced by using a solution for chemical conversion treatment for anticorrosive coating, which comprises 0.05...
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