Abstract: A multi-layer film for use in forming a layer of hardfacing on a surface of a tool includes a first layer and a second layer covering at least a portion of a surface of the first layer. The layers each include a polymer material and a plurality of particles dispersed throughout the polymer material. An intermediate structure includes a body of an earth-boring tool, a first material layer disposed over a surface of the body, and a second material layer disposed over the first material layer. A method of applying hardfacing includes providing a first material layer on a surface of a body of an earth-boring tool, providing a second material layer adjacent the first material layer, heating the body and removing the polymer material from the body of the earth-boring tool, and heating the body of the earth-boring tool to a higher temperature to form a layer of hardfacing material.

Abstract: The invention refers to a method for selective laser melting additive manufacturing a three-dimensional metallic or ceramic article/component entirely or partly. The method includes successively building up said article/component layer by layer directly from a powder bed of a metallic or ceramic base material by means of remelting the layers with a high energy laser beam, moving repetitively across the areas, which are to be solidified. The movement of the laser beam is made of a superposition of a continuous linear movement and at least one superimposed oscillation with a determined frequency and amplitude. The oscillation is created by a beam deflection device and the same beam deflection device is also used for linear positioning movement.

Abstract: Provided is a corrosion-resistant and wear-resistant member where a thermal-sprayed layer having corrosion resistance and wear resistance is formed on a surface of a metallic member which is brought into contact with a resin which generates a highly corrosive gas. Also provided is a thermal-spraying powder. The highly corrosion-resistant and wear-resistant member having a thermal-sprayed layer is one obtained by thermally spraying metallic powder on a metallic base material to form a thermal-sprayed layer on a surface of the metallic base material. The member is characterized in that the thermal-sprayed layer is a composite boride cermet of a tetragonal Mo2 (Ni,Cr) B2-type or a tetragonal Mo2 (Ni, Cr, V) B2-type. The powder for forming a thermal-sprayed layer is made of a composite boride cermet of a Mo2 (Ni, Cr) B2-type and comprises 4.0 to 6.5 mass % of boron, 39.0 to 64.0 mass % of molybdenum, and 7.5 to 20.0 mass % of chromium, a balance being 5 mass % or more of nickel and unavoidable elements.

Abstract: The invention is a process for manufacturing a nano aluminum/alumina metal matrix composite and composition produced therefrom. The process is characterized by providing an aluminum powder having a natural oxide formation layer and an aluminum oxide content between about 0.1 and about 4.5 wt. % and a specific surface area of from about 0.3 and about 5 m2/g, hot working the aluminum powder, and forming a superfine grained matrix aluminum alloy. Simultaneously there is formed in situ a substantially uniform distribution of nano particles of alumina. The alloy has a substantially linear property/temperature profile, such that physical properties such as strength are substantially maintained even at temperatures of 250° C. and above.

Abstract: An article and method of forming the article are disclosed. The article has a surface comprising a nanostructured ferritic alloy. The surface includes a plurality of nanofeatures that include complex oxides of yttrium and titanium disposed in an iron-bearing alloy matrix. The iron-bearing alloy matrix at the surface includes about 5 weight percent to about 30 weight percent of chromium, and about 0.1 weight percent to about 10 weight percent of molybdenum. Further, a concentration of a chi phase or a sigma phase in the nanostructured ferritic alloy at the surface is less than about 5 volume percent. The method generally includes the steps of milling, thermo-mechanically consolidating, annealing, and then cooling at a rate that hinders the formation of chi and sigma phases in the nanostructured ferritic alloy at the surface.

Abstract: A titanium alloy comprising an elevated level of oxygen is disclosed. The alloy may have 5.5 to 6.75 weight percent of aluminum, 3.5 to 4.5 weight percent of vanadium, 0.21 to 0.30 weight percent of oxygen, and up to 0.40% of weight percent of iron. The alloy may also have a minimum ultimate tensile strength of 130,000 psi, a minimum tensile yield strength of 120,000 psi, and a minimum ductility of 10% elongation. Also disclosed is a method for manufacturing components having the aforementioned alloy.

Abstract: One embodiment provides a composition, comprising: a powder composition comprising alloy that is at least partially amorphous, the alloy comprising chromium, molybdenum, carbon, boron, and iron. One embodiment provides a method of forming a coating, comprising: providing a substrate; and disposing onto the substrate a coating, comprising: powder composition comprising an alloy that is at least partially amorphous, the alloy comprising chromium, molybdenum, carbon, boron, and iron.

Abstract: Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 ?m to 500 ?m. A blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %.

Abstract: A sintered compact having a density of 7.5 g/cm3 or more is formed by mixed powder. The mixed powder is obtained by mixing graphite powder having an average particle diameter of 8 ?m or less and diffusion alloyed steel powder. The ratio of the graphite powder is from 0.05 wt % to 0.35 wt % with respect to 100 wt % of the diffusion alloyed steel powder. Or, the mixed powder is obtained by mixing the graphite powder and completely alloyed steel powder. The ratio of the graphite powder is from 0.15 wt % to 0.35 wt % with respect to 100 wt % of the completely alloyed steel powder.

Abstract: An electrical contact component and a method for the production thereof. The contact component has a sintered contact element and a contact carrier cast onto the contact element. The grains of the contact element are oriented in a preferential direction.

Abstract: An apparatus and method for manufacturing and authenticating a three-dimensional article including the steps of (1) successively building up the article from a metal powder by an additive manufacturing process by scanning a selected portion of the metal powder with electromagnetic radiation, (2) forming an anti-counterfeiting mark in the article during the additive manufacturing process, and (3) determining whether the article includes the anti-counterfeiting mark.

Abstract: A target including: at least one refractory metal element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, and lanthanoids; at least one element selected from the group consisting of Al, Ge, Zn, Co, Cu, Ni, Fe, Si, Mg, and Ga; and at least one chalcogen element selected from the group consisting of S, Se, and Te. And a method for producing the target.

Abstract: A manufacturing method for a sintered compact includes a first step in which magnetic powder is fabricated by rapid solidification, a second step in which a mass of the magnetic powder is housed in a forming mold, and preliminary heating is performed by placing the mass of the magnetic powder in a preliminary heating part of the forming mold at first temperature that is lower than coarse crystal particle generation temperature, and a third step in which main heating is performed by placing the preliminarily heated mass of the magnetic powder at second temperature that is lower than the coarse crystal particle generation temperature and higher than the first temperature, and press forming is performed while keeping temperature of the magnetic powder at densification temperature or higher.

Abstract: A method for preparing an ultra-long-tube type fine-grain molybdenum tube target uses molybdenum powder with the purity being greater than 3N to prepare a target tube with a uniform wall thickness, where the length is 1700-2700 mm; the diameter is greater than 150 mm; and the wall thickness is 15-40 mm. The method includes: taking molybdenum powder, feeding the molybdenum powder into a film, molding by static pressing, placing in a medium frequency furnace, performing hydrogen sintering to form a tube blank, placing into a mold, forging the mold of a tube target, placing into tempering furnace, annealing, forming fine-grain structures, fine processing, washing, and drying to prepare a molybdenum tube target. The method overcomes defects of a sintering process and a forging process, and relates to simple processes, easy industrial production and control, reduced pollution, reduced cost, improved quality, and remarkably improved production efficiency.

Abstract: The valve seat includes an iron-based sintered alloy subjected to oxidation treatment, which is obtained by subjecting an iron-based sintered alloy including: 4 mass % to 15 mass % of Co particles; and hard particles each containing at least one compound of an intermetallic compound, a carbide, a silicide, a nitride, or a boride that has one or more kinds of elements selected from group 4a to 6a elements in a periodic table, and having a hardness of from 600 HV to 1,600 HV to oxidation treatment, and which has an oxide mainly including triiron tetraoxide (Fe3O4) and cobalt oxide (CoO) formed on a surface and in an interior of the iron-based sintered alloy. The iron-based sintered alloy subjected to oxidation treatment has an area ratio of the oxide of from 5% to 25% in a cross section thereof in a state prior to installation on the cylinder head.

Abstract: There is provided a method for the manufacture of a multilevel metal part, the method comprising the steps of: a) compacting agglomerated spherical metal powder to a green multilevel preform such that an open porosity exists, wherein the green multilevel preform fulfills the relation zg=zHVC·a, b) debinding the green preform, c) sintering the green preform in an atmosphere comprising hydrogen d) compacting the green preform with high velocity compaction to a density of at least 95% TD, e) subjecting the part to densification to a density of at least 99 % TD. There is further provided a multilevel metal part. Advantages of the method include that it is possible to manufacture a multilevel part which is essentially uniform throughout the entire part and which has excellent tolerance, which at the same time has virtually full density and thereby having excellent mechanical properties as well as excellent corrosion properties.

Abstract: A hybrid core for manufacturing high temperature parts includes a non-refractory metal portion and a refractory metal portion wherein at least a portion of the non-refractory metal portion and the refractory metal portion are manufactured by using an additive manufacturing process.

Abstract: A particulate composite lubricant for powder metallurgy comprises: first discrete particles comprising at least about 90 wt % of a fatty primary monoamide wax, being substantially free of fatty bisamide wax, and being at least partially coated with metal oxide nanoparticles and second metal-stearate free discrete particles comprising a fatty bisamide wax. A particulate composite lubricant for powder metallurgy can comprise: a Montan acid ester wax and at least one fatty amide wax comprising at least one of a fatty monoamide wax and a fatty bisamide wax.

Abstract: The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 ?m and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.

Abstract: A copper alloy of the present invention contains 5.00 to 8.00 atomic percent of Zr and includes Cu and a Cu—Zr compound, and two phases of the Cu and the Cu—Zr compound form a mosaic-like structure which includes no eutectic phase and in which when viewed in cross section, crystals having a size of 10 ?m or less are dispersed. This copper alloy is formed by a manufacturing method including a sintering step of performing spark plasma sintering on a Cu—Zr binary system alloy powder at a temperature of 0.9 Tm ° C. or less (Tm(° C.): melting point of the alloy powder) by supply of direct-currant pulse electricity, the Cu—Zr binary system alloy powder having an average grain diameter of 30 ?m or less and a hypoeutectic composition which contains 5.00 to 8.00 atomic percent of Zr. The Cu—Zr compound may include at least one of Cu5Zr, Cu9Zr2, and Cu8Zr3.