Abstract: A hybrid article is disclosed including a coating disposed on and circumscribing the lateral surface of a core having a core material. The coating includes about 35% to about 95% of a first metallic material having a first melting point, and about 5% to about 65% of a second metallic material having a second melting point lower than the first melting point. A method for forming the hybrid article is disclosed including disposing the core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture. Closing the aperture includes brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.

Abstract: A component having a hybrid coating system is provided. The component includes a substrate having a surface and a hybrid coating system including a sheet disposed on the surface and a skin. The sheet includes a plurality of interlocking members. The skin includes a plurality of features corresponding to the interlocking members. The skin is engaged to the sheet in an interlocking manner via the interlocking members and the features. A method for forming a component with a hybrid coating system is also disclosed.

Abstract: An alloy is disclosed, including, by weight, about 13% to about 17% chromium, about 16% to about 20% molybdenum, about 1.5% to about 4% silicon, about 0.7% to about 2% boron, about 0.9% to about 2% aluminum, about 23% to about 27% nickel, about 0.8% to about 1.2% tantalum, and a balance of cobalt. The alloy includes a reduced occurrence of molybdenum silicide Laves phase relative to T800. A welded article is disclosed, including an article and a weld filler deposit joined to the article. The weld filler deposit includes a weld filler material including the alloy. A welding process is disclosed, including applying the weld filler material to the article and forming the weld filler deposit.

Abstract: A method of welding using a weld filler additive and a weld filler additive are provided. The method includes the step of welding the component with a filler additive comprising a sufficient amount of each of Co, Cr, Al, Ti, Mo, Fe, B, C, Nb, and Ni, the component including a hard-to-weld base alloy. The method further includes the step of forming an easy-to-weld target alloy on a surface of the component from the welding.

Abstract: A method of welding using a weld filler additive and a weld filler additive are provided. The method includes the step of welding the component with a filler additive comprising a sufficient amount of each of W, Co, Cr, Al, Ti, Mo, Fe, B, C, Nb, and Ni, the component including a hard-to-weld base alloy. The method further includes the step of forming an easy-to-weld target alloy on a surface of the component from the welding.

Abstract: A polyhedral-sealed article is disclosed including an article having a surface and a polyhedral seal layer disposed on the surface. The polyhedral seal layer includes a polyhedral structure having a plurality of polyhedral units. The polyhedral seal layer further includes at least one of a composition including an HTW composition, a heterogeneous pattern of the polyhedral structure, an orientation of the polyhedral structure extending from the surface at non-orthogonal angle, and at least one polyhedral unit conformation other than a hexagonal prism. A method for forming the polyhedral-sealed article is disclosed including forming a polyhedral seal layer by binder jet additive manufacturing and disposing the polyhedral seal layer on a surface of an article.

Abstract: An electronic rack includes a back panel, a number of server slots, and a number of server blades inserted therein. The back panel includes a heat removal liquid manifold to provide heat removal liquid from an external heat removal system to remove heat from the server blades. Each server blade includes a server tray to contain an information technology (IT) component and a self-fitting coupling assembly having a first liquid intake connector and a first liquid outlet connector to self-align with a second liquid intake connector and a second liquid outlet connector mounted on the liquid manifold mounted on the back panel. The first liquid intake connector and the first liquid outlet connector are capable of moving around within a predetermined tolerance space with respect to the server tray.

Abstract: An alloy includes a matrix that includes an amount of high-melting-temperature superalloy between about 30% and 95% by weight and an amount of low-melting-temperature superalloy between about 0% and 70% by weight. The alloy also includes an amount of a ceramic reinforcement material between about 2% and 50% by volume, dispersed in the matrix.

Abstract: A method of brazing a treatment area of a load-bearing component includes applying a repair material over the treatment area of the component and positioning an induction brazing coil having a geometry corresponding to the treatment area over the repair material and the treatment area. The method further includes heating the repair material utilizing the induction brazing coil to a temperature sufficient to cause at least partial melting of the repair material, thereby effecting a brazed joint between the treatment area and the repair material.

Abstract: A heterogeneous composition is disclosed, including an alloy mixture and a ceramic additive. The alloy mixture includes a first alloy having a first melting point of at least a first threshold temperature, and a second alloy having a second melting point of less than a second threshold temperature. The second threshold temperature is lower than the first threshold temperature. The first alloy, the second alloy, and the ceramic additive are intermixed with one another as distinct phases. An article is disclosed including a first portion including a material composition, and a second portion including the heterogeneous composition. A method for forming the article is disclosing, including applying the second portion to the first portion.

Abstract: Systems and methods for creating and using a first and second group of training sequences in a training-aided single-carrier frequency domain equalization system. The first group of training sequences are conventional training sequences and the second group of training sequences are 90°-rotated versions of the first group of training sequences.

Abstract: Manufactured articles, and methods of manufacturing enhanced surface smoothed components and articles. More particularly, surface smoothed components and articles, such as combustor components of turbine engines, having surface treatment conferring reduced roughness for enhanced performance and reduced wear related reduction in part life.

Abstract: An apparatus comprises an uncooled laser; a splitter coupled to the laser; a first wavelength component coupled to the splitter; a local oscillator (LO) port coupled to the first wavelength component; a modulator coupled to the splitter; a second wavelength component coupled to the modulator; and a signal port coupled to the second wavelength component. A method comprises emitting an input light; splitting the input light into a first local oscillator (LO) optical signal and a first unmodulated optical signal; modulating the first unmodulated optical signal using polarization-multiplexed, high-order modulation to produce a first modulated optical signal; transmitting the first LO optical signal to a first duplex fiber; and transmitting the first modulated optical signal to a second duplex fiber.

Abstract: Manufactured articles, and methods of manufacturing enhanced wear protected components and articles. More particularly, wear protected components and articles, such as combustor components of turbine engines, and even more particularly enhanced wear protected micromixer tubes and assemblies thereof with one or more micromixer plates, the micromixer tubes having wear protection for enhanced performance and reduced wear related failure. Methods including surface treatment to enhance wear, including vacuum braze application of coatings to enhance surface hardness for wear benefits.

Abstract: A hybrid article is disclosed including a coating circumscribing the lateral surface of a hollow core having a core material and a channel disposed within the lateral surface. The coating includes about 35% to about 95% of a first metallic material, and about 5% to about 65% of a second metallic material with a lower melting point than the first metallic material. A method for forming the hybrid article is disclosed including disposing the hollow core in a die, forming a gap between the lateral surface and the die, introducing a slurry having the metallic materials into the gap, and sintering the slurry, forming the coating. A method for closing an aperture of an article is disclosed including inserting the hybrid article into the aperture, and brazing the hybrid article to the article, welding the aperture with the hybrid article serving as weld filler, or a combination thereof.

Abstract: A component including a channel and an insert is provided. The channel is configured to extend through a wall thickness of the component from an inner surface of the component to an outer surface of the component. The channel is defined by an inner channel surface. The insert is configured to permit flow cooling fluid such as air and has an outer insert surface corresponding to and attached to the inner channel surface. The component may be a turbine component. Also provided is a method for forming the component.

Abstract: A method of making a component with an integral passive strain indicator includes forming the component of a single uniform material, the component comprising an outer surface and an internal volume. The method also includes forming a plurality of fiducial markers of the single uniform material on a portion of the outer surface during formation of the component, the portion of the outer surface comprising an analysis region on the outer surface of the component.

Abstract: A multi-piece part includes multiple pieces fabricated via different types of fabrication processes, wherein the multiple parts are configured to be coupled to one another to form the assembly. At least one of the multiple parts is fabricated via an additive manufacturing method. The multi-piece part also includes a holder assembly that couples and holds together the multiple pieces of the multi-piece part, wherein the holder assembly comprises a reversible, mechanical-type coupling.

Abstract: The present application provides a method of producing a component. The method may include the steps of creating a dissolvable ceramic material mold in an additive manufacturing process, casting a metallic material in the dissolvable ceramic material mold, creating the component, and dissolving the dissolvable ceramic material. The component may be a turbine component.

Abstract: A method of forming a passive strain indicator on a preexisting component includes directly depositing a plurality of fiducial markers on a portion of the outer surface of the preexisting component, the fiducial markers including a material that is compatible with the material of the outer surface. A method of evaluating a component includes initially scanning a plurality of fiducial markers on a portion of an outer surface of the component, subjecting the component to at least one duty cycle, subsequently scanning the plurality of fiducial markers after the at least one duty cycle, measuring a displacement of the plurality of fiducial markers by comparing the subsequent scan to the initial scan, and determining a remaining usable life of the component by looking up in a database a predetermined value of the remaining usable life of the component corresponding to the measured displacement of the plurality of fiducial markers.