Abstract:
According to one aspect of the invention, an assembly for preventing fluid flow between turbine components includes a shim and a first woven wire mesh layer that includes a first surface coupled to a first side of the shim and a second surface of the woven wire mesh layer opposite the first surface. The assembly also includes a first outer layer coupled to the second surface of the woven wire mesh layer, where the first outer layer includes a high temperature non-metallic material.
Abstract:
A turbine component and a process of fabricating a component are disclosed. The process includes excavating a base metal of the component to form a fill region and filling the fill region with a filler metal. The filler metal has a filler metal elongation that is at least 25% greater than a base metal elongation of the base metal. The filler includes, by weight, between about 4% and about 7% iron, between about 14% and about 17% chromium, between about 15% and about 17% molybdenum, between about 3% and about 5% tungsten, up to about 0.02% carbon, up to about 1% manganese, up to about 2.5% cobalt, and a balance of nickel and/or the filler metal elongation is greater than about 35% in/in per two inches.
Abstract:
A method for modifying a wear characteristic of a rotor component in a turbine system and a modified rotor component for a turbine system are disclosed. The method includes implanting ions of one of a Group 6 element, a Group 13 element, or a metalloid element through an exterior surface of a rotor component. The rotor component is one of a rotor wheel or a distance wheel.
Abstract:
A method for modifying a wear characteristic of a rotor blade in a turbine system and a modified rotor blade for a turbine system are disclosed. The method includes implanting ions of one of a Group 6 element, a Group 14 element, or a Group 15 element through an exterior surface of a rotor blade. The rotor blade is one of a compressor blade or a turbine bucket.
Abstract:
A fuel nozzle includes a center body and a shroud circumferentially surrounding at least a portion of the center body to define an annular passage between the center body and the shroud. A plurality of vanes extend radially between the center body and the shroud in the annular passage. A first ceramic extension extends downstream from the shroud to define at least a portion of the annular passage downstream from the shroud.
Abstract:
Articles comprising a substrate; a thermal barrier coating disposed on the substrate, the thermal barrier coating comprising a radioactive element, the radioactive element having a base radiation emission; and a radiation inhibitor disposed in or on the thermal barrier coating, or a combination thereof, the thermal barrier coating and radiation inhibitor having a mitigated radiation emission, wherein the mitigated radiation emission is lower than the base radiation emission and a methods of making the same.
Abstract:
According to one aspect of the invention, an assembly for preventing fluid flow between turbine components includes a shim and a first woven wire mesh layer that includes a first surface coupled to a first side of the shim and a second surface of the woven wire mesh layer opposite the first surface. The assembly also includes a first outer layer coupled to the second surface of the woven wire mesh layer, where the first outer layer includes a high temperature non-metallic material.
Abstract:
Disclosed herein is a spray coating process for a robotic spray gun assembly comprising importing a discretized model of an object geometry to be coated; importing a numerically characterized spray pattern file; importing a robot motion file comprising a plurality of motion positions, dwell times and orientations defining a spray direction of the robotic spray gun; reading each motion position within the motion file; determining which portions of the object geometry are visible at each motion position; computing a void volume fraction at each visible portion of the object geometry based on the core compression, the incident angle of the robotic spray gun and the ricocheting of the spray for each motion position; and calculating total coating thickness on portions of the object geometry for the complete motion step.
Abstract:
A method of treating a component made of a non magnetic alloy on which a magnetic surface layer has formed includes: (a) engaging a magnet of a calibrated magnet gauge with a surface of the component; (b) disengaging the magnet from the surface of the component and measuring a force required to disengage the magnet; (c) correlating the force with a thickness of the magnetic surface layer; and (d) if the thickness of the surface layer is greater than a predetermined minimum thickness, removing the surface layer.
Abstract:
A turbine component and a process of fabricating a component are disclosed. The process includes excavating a base metal of the component to form a fill region and filling the fill region with a filler metal. The filler metal has a filler metal elongation that is at least 25% greater than a base metal elongation of the base metal. The filler includes, by weight, between about 4% and about 7% iron, between about 14% and about 17% chromium, between about 15% and about 17% molybdenum, between about 3% and about 5% tungsten, up to about 0.02% carbon, up to about 1% manganese, up to about 2.5% cobalt, and a balance of nickel and/or the filler metal elongation is greater than about 35% in/in per two inches.