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6306517 |
Thermal barrier coatings having an improved columnar microstructure
An article having a spallation resistant TBC comprises a metal substrate, such as a high temperature superalloy, and a TBC, such as a coating of yttria stabilized zirconia. The TBC comprises a...
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6299986 |
Coated superalloy article and a method of coating a superalloy article
A high rhenium-containing nickel superalloy article (10) has a multilayer coating (12) comprising a barrier coating (14) and an aluminide coating (16). The aluminide coating (16) is a corrosion and...
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6296447 |
Gas turbine component having location-dependent protective coatings thereon
A gas turbine component includes a platform having a first coating on at least a portion thereof, where the first coating is a diffusion aluminide coating. An airfoil extends from the platform and...
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6294261 |
Method for smoothing the surface of a protective coating
A method for smoothing the surface of a ceramic-based protective coating which exhibits roughness is disclosed. The method includes the steps of applying a ceramic-based slurry or gel coating to...
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6284392 |
Superalloys with improved weldability for high temperature applications
A cast nickel-base superalloy component (10) is made having a composition containing small amounts of both boron and zirconium which are effective in combination to provide increased weldability,...
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6283714 |
Protection of internal and external surfaces of gas turbine airfoils
A gas turbine airfoil includes an internal cooling passage defined by an internal airfoil surface, and an external airfoil surface. The gas turbine airfoil is protected on both the internal airfoil...
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6283715 |
Coated turbine component and its fabrication
A gas turbine component has a platform, a shank extending downwardly from the platform, and an airfoil extending upwardly from the platform. The gas turbine component is coated by first applying a...
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6277500 |
Gas turbine component
A gas turbine component consists of a superalloy base material with a single crystal structure and a protective coating layer. The coating layer has a single crystal structure, which is epitaxial...
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6273678 |
Modified diffusion aluminide coating for internal surfaces of gas turbine components
An article is formed of a gas turbine component having a substrate, an internal passage through the substrate defining an internal surface of the substrate, and an internal protective layer...
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6267558 |
Dual intensity peening and aluminum-bronze wear coating surface enhancement
An article and a method for improving an article that results in a reduction or elimination of damage due to fretting from contact of similar metals. The invention specifically reduces wear-related...
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6257828 |
Turbine blade and method of producing a turbine blade
A turbine blade, in particular a gas-turbine blade, which extends along a main axis from a root region over a blade body region to a tip region. The turbine blade has a cavity in the blade body...
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6255001 |
Bond coat for a thermal barrier coating system and method therefor
A thermal barrier coating system and a method for forming the coating system on an article. The coating system employs a bond coat of a nickel aluminide alloy over which a thermal-insulating...
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6254997 |
Article with metallic surface layer for heat transfer augmentation and method for making
An article comprising a substrate and an outer metallic layer, such as a coating, is provided with augmented heat transfer from the substrate through the combination of a layer thickness of about...
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6254341 |
Engine having resistance to particle deposits
An engine, according to an exemplary embodiment of the invention, comprises a compressor which compresses inlet air; a combustor in which a mixture of fuel and air is combusted; a turbine which is...
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6241469 |
Turbine blade
Described is a turbine blade with a metal blade body and a protective coating constructed of a porous intermetallic felt, and in the blade body of the turbine blade cooling air channels are...
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6238187 |
Method using laser shock peening to process airfoil weld repairs pertaining to blade cut and weld techniques
A method is disclosed for repairing damage to an airfoil. The method provides for the removal of a section of the airfoil that substantially encompasses the damaged area, which consequently leaves...
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6234755 |
Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture
A method is described for improving the cooling effectiveness of a fluid which flows through a row of passage holes in a substrate (e.g., a turbine component), out to a high-temperature surface of...
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6231309 |
Shaped and finished metallic torque converter reactor
Transmission torque converter reactor thrust washer segments (12) comprising a surface hardenable aluminum alloy are subjected to electrical discharge machining (EDM) using an electrode (26) and...
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6228510 |
Coating and method for minimizing consumption of base material during high temperature service
An improved coating and method for applying the coating to minimize the consumption of substrate material during high temperature service by formation of an intermediate metal aluminide layer. A...
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6224334 |
Steam turbine, rotor shaft thereof, and heat resisting steel
A steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam...
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6221512 |
Metallic article having a thermal barrier coating and a method of application thereof
A metallic article (30) comprises a bond coating (34) on the metallic article (30) and a ceramic thermal barrier coating (38) on the bond coating (34). The ceramic thermal barrier coating (38)...
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6217286 |
Unidirectionally solidified cast article and method of making
A cast superalloy article having a unidirectional crystal structure that is substantially defect free with primary dendrite arm spacing greater than 150 μm is provided. The unidirectional...
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6206634 |
Steam turbine blade, method of manufacturing the same, steam turbine power generating plant and low pressure steam turbine
There is provided a steam turbine blade made of Ti-base alloy comprising an α+β type phase in which a difference of a tensile strength is small between a blade portion and a dovetail portion, a...
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6203278 |
Blower wheel with center disc having roughened blade engaging surface
A centrifugal blower wheel including a center disc assembly and a blade assembly. The blade assembly includes a plurality of blades, each blade including a notch which is engaged over a peripheral...
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6200088 |
On-line monitor for detecting excessive temperatures of critical components of a turbine
A monitor for detecting overheating of a critical component in a combustion turbine is provided. The monitor, when used in conjunction with a closed-loop cooling system, comprises a coating...
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6197424 |
Use of high temperature insulation for ceramic matrix composites in gas turbines
A ceramic composition for insulating components, made of ceramic matrix composites, of gas turbines is provided. The composition comprises a plurality of hollow oxide-based spheres of various...
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6194086 |
Method for producing abrasive tips for gas turbine blades
A process is provided for producing an abrasive coating on a substrate surface by applying a bond coat by low pressure plasma spraying and anchoring to the bond coat abrasive particles by...
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6193469 |
High toughness heat-resistant steel, turbine rotor and method of producing the same
A high toughness heat-resistant steel, a turbine rotor formed of this steel and a method of producing the turbine rotor are described. The heat-resistant steel has a composition consisting...
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6193141 |
Single crystal turbine components made using a moving zone transient liquid phase bonded sandwich construction
A method of bonding together at least two long, metal alloy segments, of turbine components, such as turbine blade segments (18, 19, 20 and 21) by: putting a melting point depressant between the...
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6190033 |
High gas dispersion efficiency glass coated impeller
A glass coated gas dispersing impeller. The impeller comprises a hub, having a centrally located hole. The hole has a central axis and is sized for passage over a drive shaft having an essentially...
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6190133 |
High stiffness airoil and method of manufacture
A cast metallic airfoil structure having a high stiffness core positioned therein for increasing the stiffness of the airfoil. In one embodiment, the high stiffness core is preferably formed of...
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6187453 |
Article having a durable ceramic coating
An article having an improved thermal barrier coating is disclosed. The article includes a superalloy substrate, and an adherent alumina layer generated on the substrate surface. The article also...
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6174132 |
Steam-turbine power plant and steam turbine
A steam turbine in which principal components to be exposed to high temperatures are all made of ferritic steel, whereby the temperatures of main steam and reheat steam can be increased to 610-660...
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6168874 |
Diffusion aluminide bond coat for a thermal barrier coating system and method therefor
A thermal barrier coating system and a method for forming the coating system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor...
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6168875 |
Coatings for turbine components
An iridium-niobium alloy bond coat is used under a ceramic thermal barrier coating on turbine blades and vanes to improve the life of the thermal barrier coating. Between the bond coat and the...
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6164916 |
Method of applying wear-resistant materials to turbine blades, and turbine blades having wear-resistant materials
A method of applying a wear-resistant hardface material (alloy) to a portion of a turbine blade, typically a wear surface on a shrouded turbine blade. A thin foil of brazing alloy (which in the...
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6164931 |
Compressor wheel assembly for turbochargers
Turbochargers experience tensile loads due their high rotational speeds. These tensile loads tend to expand surface defects present about a bore portion of a compressor wheel. Expansion of these...
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6158957 |
Thermal barrier removal process
The invention is a process for removing ceramic thermal barrier layers from gas turbine engine hardware. A combination of chemical and mechanical steps are used to remove the thermal barrier...
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6155789 |
Gas turbine engine airfoil damper and method for production
A gas turbine engine airfoil assembly for damping airfoil vibrations includes a metallic airfoil having an outer surface and a chordwise extending cavity beneath the outer surface of the airfoil. A...
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6153313 |
Nickel aluminide coating and coating systems formed therewith
A coating system (20) for articles used in hostile thermal environments, such as turbine, combustor and augmentor components (10) of a gas turbine engine. The coating system (20) of this invention...
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6149389 |
Protective coating for turbine blades
On a turbine blade a protective corrosion resistant surface layer consisting of a MCrAlY alloy is generated by melting the surface of the turbine blade with the MCrAlY alloy uniformly distributed...
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6146094 |
Motor-driven blower and method of manufacturing impeller for motor-driven blower
Reduction of air resistance which acts on the conventional motor-driven blower is limited because crushed protrusions are formed on the surface of the plate of the impeller of the conventional...
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6145787 |
Device and method for heating and deicing wind energy turbine blades
The invention relates to heatable wind energy turbine blades and to a method of heating and deicing the turbine blades using conductive fabrics to displace and/or cease the buildup of ice on the...
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6139976 |
Article having a superalloy substrate and an enrichment layer placed thereon, and methods of its manufacturing
The invention relates to an article of manufacture comprising: a substrate composed of a superalloy containing chromium and a base element selected from the group consisting of iron, cobalt, and...
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6129991 |
Aluminide/MCrAlY coating system for superalloys
High temperature oxidation resistance of an aluminide diffusion overcoated MCrAlY coating system is substantially improved by CVD over-aluminizing the MCrAlY type overlay coating under CVD...
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6127044 |
Method for producing titanium alloy turbine blades and titanium alloy turbine blades
A method for producing titanium alloy turbine blades comprising the steps of (a) forming turbine blades of titanium alloy through hot forging or machining, (b) cooling leading edges on tip portions...
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6099257 |
Plastically formed hybrid airfoil
A plain blank is sized to produce an airfoil. The blank is plastically formed to include a pocket blending smoothly in one side thereof. Leading and trailing edges of the airfoil are benched. And,...
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6095755 |
Gas turbine engine airfoils having increased fatigue strength
An airfoil having improved fatigue strength is disclosed. The airfoil comprises a tip, a root section, a platform, and an airfoil section located between the tip and the platform. The airfoil...
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6095756 |
High-CR precision casting materials and turbine blades
This invention relates to high-Cr precision casting materials containing carbon, silicon, manganese, chromium, nickel, vanadium, niobium, nitrogen, molybdenum, tungsten, cobalt and optionally boron...
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6092989 |
Compressor for turbine and gas turbine
A compressor for a gas turbine, comprises a rotor including a plurality of rotor parts, and blades for a plurality of stages implanted in the rotor parts, the rotor part in which the blades for at...
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