A braze composition, brazing process, and brazed article are disclosed. The braze composition includes a MCrAlY alloy at a concentration, by weight, of between 50% and 70%, where M is selected from the group consisting of nickel, cobalt, iron, alloys thereof, and combinations thereof, and a nickel-based alloy at a concentration, by weight, of between 30% and 50%. The brazing process includes forming a braze paste, brazing the braze paste to a portion of a component, and shaping the braze paste to form a brazed article. The brazed article includes a component and a braze composition brazed to the component, the braze composition including a MCrAlY alloy at a concentration, by weight, of between 50% and 70%, where M is selected from the group consisting of nickel, cobalt, iron, alloys thereof, and combinations thereof, and a nickel-based alloy at a concentration, by weight, of between 30% and 50%.

Disclosed is a semi-amorphous, ductile brazing foil with a composition consisting essentially of Ni.sub.balFe.sub.aCr.sub.bP.sub.cSi.sub.dB.sub.eMo.sub.f with approximately 30 atomic percent aapproximately 70 atomic percent; approximately 0 atomic percent bapproximately 20 atomic percent; approximately 9 atomic percent capproximately 16 atomic percent; approximately 0 atomic percent dapproximately 4 atomic percent; eapproximately 2 atomic percent; fapproximately 5 atomic percent; and the balance being Ni and other impurities; where c+d+e<approximately 16 atomic percent.

A method for applying an abrasive comprises: applying, to a substrate, the integral combination of: a self-braze material; and an abrasive embedded in the self-braze material; and securing the combination to the substrate.

An amorphous ductile brazing foil is provided. The brazing foil has a composition consisting substantially of Ni.sub.BalCr.sub.aB.sub.b,P.sub.cSi.sub.dMo.sub.eX.sub.fY.sub.g, with 21 atomic %a28 atomic %; 0.5 atomic %b7 atomic %; 4 atomic %c12 atomic %; 2 atomic %d10 atomic %; 0 atomic %<e5 atomic %; 0 atomic %f5 atomic %; 0 atomic %g20 atomic %; incidental impurities1.0 atomic %; balance Ni, wherein X is one or more of the elements Nb, Ta, W, Cu, C or Mn and Y is one or both of the elements Fe and Co and a/c2.

An additive manufacturing technique may include depositing, via a filament delivery device, a filament onto a surface of a substrate. The filament includes a binder and a powder including at least one metal or alloy and at least one braze alloy. The technique also includes sacrificing the binder to form a preform. The technique also includes sintering the preform to form a component including the at least one metal or alloy and the at least one braze alloy.

A method for applying an abrasive comprises: applying, to a substrate, the integral combination of a self-braze material, an abrasive, a matrix in which the abrasive is at least partially embedded, and an intermediate layer between the self-braze material and the matrix; and heating to cause the self-braze material to braze to the substrate.

A method for applying an abrasive comprises: applying, to a substrate, the integral combination of: a self-braze material; an abrasive; and a matrix in which the abrasive is at least partially embedded; and heating to cause the self-braze material to braze to the substrate. The heating leaves at least a portion of the self-braze material with a composition comprising, in weight percent: cobalt 2.5-13.5; chromium 12-27; aluminum 5-7; yttrium 0.0-1.0; hafnium 0.0-1.0; silicon 1.0-3.0; tantalum 0.0-4.5; tungsten 0.0-6.5; rhenium 0.0-2.0; molybdenum 0.1-1.0; and the balance nickel.

An article includes a substrate and a structure including direct metal laser melted material of predetermined thickness attached to the substrate, the structure formed by providing and depositing a metal alloy powder to form an initial layer having a preselected thickness and shape including at least one aperture, melting the metal alloy powder with a focused energy source, transforming the powder layer to a sheet of metal alloy, sequentially depositing an additional layer of the metal alloy powder over the sheet of metal alloy, the additional preselected shape including an aperture corresponding to the aperture in the initial layer, and melting each additional layer of the metal alloy powder with the focused energy source, increasing the thickness of the sheet and forming at least one aperture having a predetermined profile, the article further including a passageway through the structure including the aperture and a corresponding metering hole.

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.

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.