Abstract: A powder application device (10) for use in a system (100) for producing a three-dimensional workpiece using a generative layering process comprises a spreading member (12). The spreading member (12) is movable across a surface of a carrier (116) for depositing a raw material powder for producing a workpiece by a generative layering method onto the surface of the carrier (116). Furthermore, the powder application device (10) comprises a powder entrainer (16) which is movable across a carrier plane (E) and which, in the region of a surface (20) facing the carrier plane (E), is provided with a surface profile (22). The surface profile (20) comprises an entraining element (24a, 24b, 24c) and a passage channel (26a, 26b, 26c).

Abstract: Disclosed are titanium alloys for use in additive manufacturing that comprise a titanium material and a beta eutectoid stabilizer. The beta eutectoid stabilizer can be present in an effective amount to produce an equiaxed grain structure when the titanium alloy is melted or sintered during an additive manufacturing process. Also provided are methods of forming objects via additive manufacturing processes as well as methods of forming titanium alloys for use in additive manufacturing.

Abstract: A method is provided that facilitates additive manufacturing a superalloy component using a liquid assisted additive manufacturing process. The method includes successively depositing and fusing together layers of a superalloy powder mixture comprising a high melt superalloy powder and a low melt superalloy powder to build up an additive portion of the superalloy component. The method may further include heat treating the additive portion to form a homogenized base alloy of which the additive portion is comprised, which base alloy has a chemistry defined by the superalloy powder mixture. Each of the high melt superalloy powder, the low melt superalloy powder, and the superalloy powder mixture may have a nickel content by weight greater than 40% and have an aluminum content by weight of greater than 1.5%.

Abstract: An injection molding composition contains a titanium-based powder containing titanium as a main component and having an average particle diameter of 15 ?m or more and 35 ?m or less, a ceramic powder containing a ceramic as a main material and having an average particle diameter of 1 nm or more and 100 nm or less, and an organic binder. The ceramic is an oxide-based ceramic containing an oxide as a main component, and a standard free energy of formation of the oxide at 1000° C. may be lower than a standard free energy of formation of titanium oxide at 1000° C.

Abstract: The steel shaft component consists of C: 0.40 to 0.60%, Si: 0.05 to 1.00%, Mn: 1.00 to 2.00%, P: 0.030% or less, S: 0.005 to 0.100%, Cr: 0.10 to 0.50%, V: 0.10 to 0.30%, Al: 0.005 to 0.050%, N: 0.0050 to 0.0200%, Ti: 0 to 0.050%, and the balance: Fe and impurities. A Vickers hardness Hs of the surface of the shaft part is 620 HV or more. A Vickers hardness Hb at an R/2 position satisfies Formula (1). A depth of the hardened layer Hr (mm) having a Vickers hardness of 620 HV or more satisfies Formula (2). The microstructure at the R/2 position is composed of ferrite and pearlite. Within the hardened layer, the number of density of V-containing precipitates having an equivalent circular diameter of more than 100 nm is 10 particles/276 ?m2 or less. Hs/2.3?Hb?350??(1) 0.05?Hr/R?0.

Abstract: In an aspect, a method of manufacturing a high purity copper-based alloy comprises providing in a melting furnace a feedstock and melting the feedstock. The method additionally includes bubbling an inert gas into the molten copper-based alloy to form the high purity copper-based alloy. Aspects are also directed to an apparatus and a method of fabricating an apparatus for manufacturing the high purity copper-based alloy.

Abstract: Exemplary alloys may be particularly suited for additive manufacturing applications, and may comprise iron and one or more of: chromium (Cr), nickel (Ni), carbon (C), and copper (Cu). Exemplary alloys may have a majority microstructure that is martensite.

Abstract: A titanium aluminide alloy material for hot forging has a chemical composition including, by atom, aluminum of 38.0% or greater and 39.9% or less, niobium of 3.0% or greater and 5.0% or less, vanadium of 3.0% or greater and 4.0% or less, carbon of 0.05% or greater and 0.15% or less, and titanium and an inevitable impurity as a residue.

Abstract: The present invention provides magnesium or magnesium alloys having high formability at room temperature, the magnesium or magnesium alloys having a grain size ?2 microns. The present invention also provides a method for manufacturing the magnesium or magnesium alloys having high formability at room temperature. The magnesium or magnesium alloys having high formability at room temperature are prepared by simple processing means. The present invention overcomes a problem of poor formability at room temperature.

Abstract: The present invention relates to a high-strength, high-corrosion resistance ternary magnesium alloy and a preparation method therefor, the magnesium alloy comprising the following element components by mass percentage: 8-12 wt % of Y, 0.6-3 wt % of Al and the remainder being Mg. The method comprises: (1) under a protective atmosphere, preparing a Mg—Y intermediate alloy, an aluminum ingot and a magnesium ingot into a magnesium alloy melt; (2) under a protective atmosphere, allowing the magnesium alloy melt to stand after stirring, then carrying out refining, degassing, and slag removal, allowing the magnesium alloy melt to stand again, then thermally insulating to obtain a magnesium alloy liquid; and (3) casting and molding the magnesium alloy liquid under a protective atmosphere, and forming a cast ingot; the three steps above ultimately obtain a high-strength, high-corrosion resistance ternary magnesium alloy.

Abstract: The invention relates to metallurgical production, and more particularly to preparing a charge ingot which is used for producing bronze ingots by casting. As a starting charge material, a spent inert anode previously used in the electrolytic production of aluminium is utilised, that is covered with alumina, allowing same to react with a bath which flows out of the anode during a thermal treatment performed at a temperature within a range of 950-1200° C., followed by soaking in a furnace for at least 3 days. The invention makes it possible to obtain a charge ingot with a minimal electrolyte content.

Abstract: A metal casting is heated using infrared energy by introducing the metal casting into a heating system with infrared emitters directed towards the casting, and activating at least a portion of the emitters. The heating system includes a heating chamber, a plurality of directional infrared emitters in the heating chamber, an optical temperature sensor directed towards a part location in the interior of the heating chamber, and a thermal shield that is movable between a deployed position and a retracted position, the thermal shield comprising an observation duct. The observation duct provides a line-of-sight path between the optical temperature sensor and the part location when the thermal shield is in the deployed position, and the thermal shield is between the plurality of infrared emitters and the part location when the thermal shield is in the deployed position.

Abstract: Disclosed herein are magnesium alloy based objects and methods of making and use thereof. For example, disclosed herein are methods of making a magnesium alloy based object, the methods comprising: heating an object comprising a preliminary magnesium alloy at a first temperature for a first amount of time, the preliminary magnesium alloy comprising a first intermetallic phase, a second intermetallic phase, and an alloy phase, to thereby substantially dissolving the first intermetallic phase into the alloy phase to form an object comprising an intermediate magnesium alloy, the intermediate magnesium alloy comprising the second intermetallic phase and the alloy phase; and heating the object comprising the intermediate magnesium alloy at a second temperature for a second amount of time to thereby substantially dissolving the second intermetallic phase into the alloy phase and minimizing incipient melting of the alloy phase to form the magnesium alloy based object.

Abstract: A process for producing a copper-beryllium alloy product. The process comprises preparing a base alloy having 0.15 wt %-4.0 wt % beryllium and having grains and an initial cross section area. The process further comprises cold working the base alloy to a percentage of cold reduction of area (CRA) greater than 40%, based on the initial cross section area, and heat treating the cold worked alloy to produce the copper-beryllium alloy product. The grain structure of the copper-beryllium alloy product has an orientation angle of less than 45° when viewed along the direction of the cold working. The copper-beryllium alloy product demonstrates a fatigue strength of at least 385 MPa after 106 cycles of testing.

Abstract: A copper alloy for use as material for a casting mold or a casting mold component selected from the group consisting of mold plate, mold tube, casting wheel, casting drum, casting roller, and melting crucible. The copper alloy includes, in percent by weight (proportion by mass of the melt analysis in %): silver (Ag) 0.020-0.50, zirconium (Zr) 0.050-0.50, phosphorus (P) not more than 0.060, chromium (Cr) not more than 0.005, balance copper (Cu) and other alloying elements including unavoidable impurities, with a proportion of the other alloying elements being less than or equal to (?) 0.50.

Abstract: Described are porous sintered metal bodies and methods of making porous sintered metal bodies by additive manufacturing methods.

Abstract: An additive method for preparing a large die blank for isothermal forging comprising preparing a plurality of titanium-zirconium-molybdenum alloy plate-shaped elements of a preset shape; preparing a plurality of foil-shaped intermediate layers of pure tantalum, a niobium-tungsten alloy and a tantalum-tungsten alloy of a preset shape; forming an assembly of a preset configuration, such that the foil-shaped intermediate layers are sandwiched between the titanium-zirconium-molybdenum alloy plate-shaped elements; applying an axial pressure to the assembly under high-temperature vacuum to perform diffusion connections to obtain a primary blank; subjecting the primary blank to a homogenization treatment under a high temperature, vacuum or inert gas protection to homogenize the structure and components at a connection interface in the primary blank; and cooling the homogenized primary blank to obtain a die blank.

Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.

Abstract: A method of producing a CoFe alloy strip is provided. The method comprises hot rolling a CoFe alloy to form a hot rolled strip, followed by quenching the strip from a temperature above 700° C. to a temperature of 200° C. The CoFe alloy comprises an order/disorder temperature To/d and a ferritic/austenitic transformation temperature T?/?, wherein T?/?>To/d. The method further comprises cold rolling the hot rolled strip, after cold rolling, continuous annealing the strip at a maximum temperature T1, wherein 500° C.<T1<To/d, followed by cooling at a cooling rate R1 of at least 1 K/s in the temperature range of T1 to 500° C., and after continuous annealing, magnetic annealing the strip, or parts manufactured from the strip, at a temperature between 730° C. and T?/?.

Abstract: A copper-tin brazing wire and a preparation method and use thereof are provided. A copper-tin brazing wire includes a plurality of copper wires each having a composite metal layer on a surface thereof; the copper-tin brazing wire includes, in parts by weight, 75-84 parts of Cu, 20-25 parts of Sn, and 0.4-0.5 parts of P; and the composite metal layer includes Cu, Sn, and P, in which a mass ratio of Cu, Sn, and P is (45-55):(46-56):(0.5-1.5).