摘要:
A composition and method for cleaning turbine engine components (10) during servicing. An embodiment of the invention includes a colloidal mixture or slurry (22) of nanoparticles. The slurry may be nontoxic and provide optimal cleaning of tiny surface-exposed crevices (18) of braze joints and components. When a colloidal mixture is in a polar solvent, the pH of the slurry is maintained at about 5 to 9 and at the isoelectric point of the nanoparticles to minimize or prevent agglomeration. When a colloidal mixture is in a nonpolar solvent, the pH of the slurry is maintained at about 5 to 9 and at the isoelectric point of the nanoparticles to minimize or prevent agglomeration by use of surfactant additives.
摘要:
A composition and method for cleaning turbine engine components (10) during servicing. An embodiment of the invention includes a colloidal mixture or slurry (22) of nanoparticles. The slurry may be nontoxic and provide optimal cleaning of tiny surface-exposed crevices (18) of braze joints and components. When a colloidal mixture is in a polar solvent, the pH of the slurry is maintained at about 5 to 9 and at the isoelectric point of the nanoparticles to minimize or prevent agglomeration. When a colloidal mixture is in a nonpolar solvent, the pH of the slurry is maintained at about 5 to 9 and at the isoelectric point of the nanoparticles to minimize or prevent agglomeration by use of surfactant additives.
摘要:
A method of forming a wear resistant coating on a combustion turbine component includes melting an ingot including at least one metallic carbide to form a metallic liquid including at least one metallic carbide. The metallic liquid including at least one metallic carbide is atomized in an atmosphere to form a metallic powder including at least one metallic carbide. The metallic powder including at least one metallic carbide is milled to form a nanosized metallic powder including at least one metallic carbide. The nanosized metallic powder including at least one metallic carbide is thermally sprayed onto the combustion turbine component.
摘要:
A method of manufacturing a superalloy compound component is provided. The component includes a first component portion primarily consisting of a first superalloy and a second component portion primarily consisting of a second superalloy or of a refractory metal. The method includes using Spark Plasma Sintering for forming the superalloy compound component.
摘要:
A method of forming a thermocouple (12), including: depositing a first material on a component (10) to form a first leg (14); depositing a second material through a mask (30) to form a pattern (50) on the component (10), the pattern (50) forming a plurality of discrete second leg junction ends (20) and a continuous patch (52) of the second material comprising indiscrete lead ends of the second legs (16), each second leg junction end (20) spanning from a respective junction (18) with the first leg (14) to the continuous patch (52); and laser-ablating the continuous patch (52) to form discrete lead ends (22) of the second legs (16), each lead end (22) electrically connected to a respective junction end (20), thereby forming discrete second legs (16).
摘要:
A gas turbine component (49) may be instrumented to provide a plurality of signals indicative of thermal measurements in a high temperature combustion environment of the gas turbine. A thermocouple arrangement may include a first thermocouple leg (50) disposed within a thickness of the component. At least two or more thermocouple legs (52, 53, 54) is each electrically connected to the first leg to form individual thermocouple junctions (56, 57, 58, 59) along the first leg for conversion of respective thermal gradients to respective electrical signals, such as electromotive force (emf) based voltages. The thermocouple arrangement may be used in combination with a thermographic system (70) to calculate heat flux over a region of the turbine component.
摘要:
A bracket assembly is used to mount a wireless telemetry component proximate a rotating component of a combustion turbine engine (10), wherein the wireless telemetry component includes an RF transparent ceramic cover (128). The bracket assembly comprises a first mounting bracket (125) on a surface proximate the rotating component that includes a first (138) and second (139) bracket member spaced apart from one another. The first (138) and second (139) bracket members are disposed generally perpendicular to a direction of centrifugal forces generated by the rotating component. At least one of the first (138) or second bracket (139) members is inclined toward the other bracket member and disposed at an acute angle relative to the surface (141) proximate the rotating component.
摘要:
A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) and includes a sensor (118) in connection with a turbine blade (111) or vane (23). A transmitter assembly (117) includes a telemetry transmitter circuit/transceiver may be affixed on a turbine blade (111) or seal plate (115) proximate the turbine blade with a first connecting material (119) deposited on the turbine blade (111) for routing electronic data signals, indicative of a condition of the turbine blade (111), from the sensor (118) to the telemetry transmitter circuit/transceiver. An induction power system for powering the telemetry transmitter circuit/transceiver may include a rotating data antenna (116) affixed to the seal plate (115) with an electrical connection (122) between the telemetry transmitting circuit/transceiver for routing electronic data signals from the telemetry transmitter circuit/transceiver to the rotating data antenna (119).
摘要:
A metallic coating or alloy is provided. The metallic coating includes iron, cobalt, chromium, and aluminum. Tantalum may also be included. A new addition in nickel based coating with stabilized gamma/gamma′ phases at high temperatures lead to a reduction of local stresses. A component including the metallic coating or alloy is also provided.
摘要:
A metallic coating is provided. The nickel based metallic coating includes tantalum, cobalt, chromium, and aluminum. The nickel based metallic coating does not include silicon and/or hafnium and/or zirconium. A tantalum addition in nickel based coating stabilized the phases gamma/gamma1 at high temperatures leading to a reduction of local stresses.