Abstract: A hybrid article is disclosed including a sintered coating disposed on and circumscribing the lateral surface of a core having a core material and a greater density than the sintered coating. The sintered coating includes more than about 95% up to about 99.5% of a first metallic particulate material including a first melting point, and from about 0.5% up to about 5% of a second metallic particulate 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, introducing a slurry having the metallic particulate materials into a gap between the lateral surface and the die, and sintering the slurry. A method for welding a workpiece is disclosed including the hybrid article serving as a weld filler.

Abstract: A hybrid preform component including a plurality of elongated metallic cores and a coating paste is provided. The coating paste envelops the plurality of elongated metallic cores. The coating paste includes a first material having a first melting point, a second material having a second melting point, and a binder. A method for treating a component is also provided. The method includes the step of mixing a second material, a first material, and a binder to make coating paste. The method further includes the step of coating the plurality of cores using the coating paste to form a coated rod assembly. The method further includes the step of compressing the coated rod assembly to envelop the coating paste to the plurality of cores and form a preform component having a near net shape. The method further includes the step of sintering the preform component to form a pre-sintered preform.

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 process for treating a component comprising the steps of capturing a digital image of a gap in a portion of a component. The gap is characterized as having gap walls, a length and at any point along its length as having the features of an inner width between the gap walls, an outer width between the gap walls, and a depth. One or more of such features is measured at one or more points along all or a portion of the length of the gap. The measurements are used to determine a water jet cleaning path, a cleaning edge relative to a gap wall and path angle. A water jet is passed along all or a portion of the selected path to remove debris and/or a portion of a gap wall. The treated gap is then processed further to join the gap edges using a suitable sealing method.

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 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: 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: 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.

Abstract: In some embodiments, a process treats a turbine component. The turbine component includes an article and a wear component brazed to the article. The process includes applying a braze tape on at least a portion of the wear component and thermal processing the turbine component while the braze tape is on the at least a portion of the wear component to treat the turbine component. In some embodiments, an assembly includes a turbine component. The turbine component includes an article and a pre-sintered preform brazed to a surface of the article. The assembly also includes a braze tape on at least a portion of the pre-sintered preform. In some embodiments, a treated turbine component includes a treated article and a pre-sintered preform brazed to a surface of the treated article. The treated turbine component has been thermally processed with the pre-sintered preform being substantially free of re-flow.

Abstract: A method for treating a component and a treated component are provided. The method includes the steps of machining a tapered slot in the component. The tapered slot is measured to determine dimensions. An insert is formed to have a corresponding geometry to the tapered slot with a braze gap between an outer surface of the insert and an inner surface of the tapered slot. A layer of a braze material is deposited on the outer surface of the insert, where a thickness of the layer corresponds to the braze gap. The layer of the braze material on the outer surface of the insert is sintered to fabricate a diffusion layer. The insert is positioned into the tapered slot. The diffusion layer is brazed to join the insert to the taper slot. The treated component includes a surface having a tapered slot, an insert, and a braze joint.

Abstract: A method for treating a component and a heterogeneous composition are provided. The method includes the steps of brazing the component with a heterogeneous composition. The heterogeneous composition includes a braze material and a ceramic additive. The braze material and the ceramic additive are intermixed with one another as distinct phases. The heterogeneous composition may include, but not be limited to, a braze material and a silicon carbide. The braze material includes a braze filler. The silicon carbide has a configuration including, but not limited to, fibers, powders, and combinations thereof.

Abstract: A method includes heating a brazing material in a braze chamber of a first component to a braze temperature to melt the brazing material. The brazing material flows from the braze chamber, through at least one internal channel of the first component, and into a braze gap between the first component and a second component to braze the first component to the second component. A brazed article includes a first component having a braze chamber and at least one internal channel extending from the braze chamber to an external surface, a second component having at least one braze surface separated from the external surface of the first component by a braze gap, and a braze material in the braze gap. A braze assembly includes a first component, a second component, and a brazing material in the braze chamber.

Abstract: A method of turbulator fabrication is provided and includes additively disposing an elongate flexible member in tension onto a liner body, dispensing braze paste at an elongate flexible member-liner body interface and conducting a brazing process with respect to the braze paste to attach the elongate flexible member to the liner body.

Abstract: A system for sealing an internal passage of a component includes a closure element positioned within the internal passage, and a joint material coupling the closure element to at least one passage wall that defines the internal passage. The system also includes a flexible braze element positioned proximate the closure element, the joint material, and the at least one passage wall.