Abstract: The present disclosure relates to methods for producing new 6xxx aluminum alloy sheet products having tailored precipitate phase particle size distributions. The tailored precipitate phase particle size distributions may be produced by preparing a 6xxx aluminum alloy sheet for precipitate phase modification, and then modifying an initial precipitate phase particle size distribution of the material. The modifying may include heating the intermediate gauge strip to a temperature of from 440° C. (825° F.) to 500° C. (932° F.) and for a time sufficient to create a modified strip product having a modified (tailored) precipitate phase particle size distribution. The modified strip product may realize improved properties.

Abstract: The preparation method includes steps of (1) melting steel according to in weight percentage 0.001-0.003% of C, 5.0-6.6% of Si, 0.2-0.3% of Mn, 0.05-0.12% of Al, 0.01-0.04% of V, 0.03-0.06% of Nb, 0.02-0.03% of S, 0.009-0.020% of N, O which is less than or equal to 0.0020%, and the balance being Fe and unavoidable impurities; (2) forming cast strips after a thin-strip casting course; (3) hot-rolling the cast strips under inert atmosphere conditions; (4) cooling the hot-rolled cast strips to 550-600 DEG C., coiling and performing low-temperature hot rolling/warm rolling on the coiled cast strips under a nitrogen atmosphere condition; (5) removing oxidized scales though pickling, performing cold rolling multiple times; (6) performing recrystallization annealing, coating with an MgO layer, and coiling; (7) performing purification annealing under hydrogen circulation conditions; and (8) removing oxidized scales, coating with an insulating layer, performing flat stretch annealing, and air-cooled coiling.

Abstract: It is an objective of the invention to provide a low cost Ni-based casting superalloy suitable for casting articles having a far better balance among a high-temperature mechanical strength, a grain boundary strength and a oxidation resistance than conventional Ni-based superalloy cast articles. There is provided an Ni-base casting super alloy including: in mass %, 0.03 to 0.15% of C; 0.005 to 0.04% of B; 0.01 to 1% of Hf; 0.05% or less of Zr; 3.5 to 4.9% of Al; 4.4 to 8% of Ta; 2.6 to 3.9% of Ti; 0.05 to 1% of Nb; 8 to 12% of Cr; 1 to 6.9% of Co; 4 to 10% of W; 0.1 to 0.95% of Mo; 0.02 to 1.1% of Si and/or 0.1 to 3% of Fe; and the balance including Ni and incidental impurities.

Abstract: A method is described for producing an engine component, more particularly a piston for an internal combustion engine, in which an aluminium alloy is cast using the gravity die casting method and wherein the aluminium alloy comprises the following alloy elements: 9 to ?10.5% by weight silicon, >2.0 to <3.5% by weight nickel, >3.7 to 5.2% by weight copper, <1% by weight cobalt, 0.5 to 1.5% by weight magnesium, 0.1 to 0.7% by weight iron, 0.1 to 0.4% by weight manganese, >0.1 to <0.2% by weight zirconium, >0.1 to <0.2% by weight vanadium, 0.05 to <0.2% by weight titanium, 0.004 to 0.008% by weight phosphorus, wherein said aluminium alloy further comprises aluminium and unavoidable impurities.

Abstract: The invention relates to a method for the production of martensitic cast steel of high strength and excellent abrasion- and impact-wear resistance, intended for large parts used as anti-wear cladding in crushing and grinding mining operations, having a chemical composition, expressed in percentage by weight, of between 0.35˜0.55% C, 0.60˜1.30% Si, 0.60˜1.40% Mn, 4.5˜6.50% Cr, 0.0˜0.60% Ni, 0.30˜0.60% Mo, 0.0˜0.70% Cu, 0.010˜0.10% Al, 0.0˜0.10% Ti, 0.0˜0.10% Zr, 0.0˜0.050% Nb, less than 0.035% P, less than 0.035% S, less than 0.030% N, optionally 0.0005˜0.005% B, optionally 0.015˜0.080% rare earths, and the rest being iron. The method for the production of cast steel includes smelting, pouring and heat treatment. The smelting can be performed in an electric arc furnace with acidic or basic refractory or an electric induction furnace. Smelting in an electric arc furnace as a normal operation includes melting, oxygen insufflation, blocking, refining and deoxidation.

Abstract: A fabricator resource receives an assembly including a first portion of material and a second portion of material. Initially, the first portion of material in the assembly may have a different modulus of elasticity than the second portion of material. The fabricator resource exposes the assembly to one or more heating/cooling cycles. Exposure of the assembly to the one or more heating/cooling cycles modifies a modulus of elasticity of the first portion of material and a modulus of elasticity of the second portion of material to desired target values (such as substantially same or different values).

Abstract: The present invention discloses a titanium-alloy substrate which is formed plastically by performing die casting and forging to alloyed titanium at least one time. The present invention is characterized in that this titanium-alloy substrate is provided with a first structure layer which is arranged in a configuration of long axis crystal structure, and a second structure layer which is disposed on a side in adjacent to the first structure layer and is arranged in a configuration of equiaxed crystal structure.

Abstract: An arrangement for feeding fine-grained matter to a concentrate or matte burner (1) of a suspension smelting furnace (2). The arrangement comprising a fluidization arrangement (3) for feeding fluidized fine-grained matter into a dosing bin (4), and a conveyor means (6) for feeding fluidized fine-grained matter from the dosing bin (4) to the concentrate or matte burner (1) of the suspension smelting furnace (2), and a loss-in-weight controller (5) between the dosing bin (4) and the conveyor means (6). The arrangement comprises an impact cone (8) arranged below a filling valve (7) between the fluidization arrangement (3) and the dosing bin (4) for distributing fluidized fine-grained matter flowing from the fluidization arrangement (3) within the dosing bin (4).

Abstract: A method of making a reinforced metal alloy component, the method including introducing a reinforcing phase precursor into a bulk alloy that is selected from the group consisting of high-entropy alloys, aluminum-based alloys, magnesium-based alloys and combinations thereof. The precursor is converted to a reinforcing phase by exposing the bulk alloy and precursor to an elevated temperature during one or more of a subsequent heat treating step, squeeze casting shaping or semi-solid metal shaping.

Abstract: The present invention discloses a Mg—Ca—Zn—Zr magnesium alloy sheet, having the chemical compositions in weight percentage: Ca: 0.5˜1.0%, Zn: 0.4˜1.0%, Zr: 0.5˜1.0%, the remainders being Mg and unavoidable impurities; wherein the magnesium alloy sheet has an average grain size of less than or equal to 10 ?m, an interarea texture strength of less than or equal to 5, an interarea texture strength after annealing at 250˜400° C. of less than or equal to 3, and a limiting drawing ratio at room temperature of more than AZ31; and the grain size thereof is remarkably less than that of AZ31B sheet produced in the same conditions, and the sheet texture is notably weakened.

Abstract: A process for producing a high strength, homogeneous copper-nickel-tin alloy with high strength includes preparing a molten mixture of copper, nickel, and tin; pressure assist casting the molten mixture to form a casting; and thermally treating the casting. Novel combinations of properties can be attained for the alloy.

Abstract: The present invention relates to an Fe—Ni-based alloy having excellent high-temperature characteristics and hydrogen embrittlement resistance, which has a composition containing, in terms of % by mass, C: 0.005% to 0.10%, Si: 0.01% to 0.10%, P: 0.015% or less, S: 0.003% or less, Ni: 23.0% to 27.0%, Cr: 12.0% to 16.0%, Mo: 0.01% or less, Nb: 0.01% or less, W: 2.5% to 6.0%, Al: 1.5% to 2.5%, and Ti: 1.5% to 2.5%, the balance being Fe and other unavoidable impurities.

Abstract: A method of manufacturing a roller cone for a drill bit includes: selectively carburizing a land of the roller cone between a plurality of spots on the land for protection against erosion; after carburization, forming sockets in the roller cone at the spots; and mounting cermet inserts in the sockets.

Abstract: Provided are a welded joint of extremely low-temperature steel and flux cored, submerged, and gas metal arc welding materials which can be used to prepare the welded joint, wherein the welded joint of extremely low-temperature steel has outstanding impact toughness in extremely low-temperature conditions and excellent yield strength at room temperature.

Abstract: A welding wire formed of a trace boron titanium base alloy is provided, along with welds formed from the wire and articles comprising one or more of such welds. A method may include forming such a weld or welds from such a welding wire, and may also include non-destructively inspecting titanium alloy articles comprising one or more of such welds using ultrasonic waves to detect internal flaws.

Abstract: An aluminum casting alloy contains the following alloy components: Si: 3.0 to 3.8 wt.-%, Mg: 0.3 to 0.6 wt.-%, Cr: 0.05 to <0.25 wt.-%, Fe: <0.18 wt.-%, Mn: <0.06 wt.-%, Ti: <0.16 wt.-%, Cu: <0.006 wt.-%, Sr: 0.010 to 0.030 wt.-%, Zr: <0.006 wt.-%, Zn: <0.006 wt.-%, Contaminants: <0.1 wt.-%, and is supplemented to 100 wt.-% with Al, in each instance.

Abstract: A method for manufacturing reduced iron using the same, and more particularly, to a burning apparatus heating a coal briquette to manufacture reduced iron, which includes a first burning furnace heating the coal briquette while moving the truck accommodating the coal briquette along a linear movement path; a second burning furnace connected to the other side of the first burning furnace, and heating the coal briquette while moving the coal briquette discharged from the truck along an annular path; and a cooling device connected to the second burning furnace, and cooling the reduced iron while moving reduced iron reduced in the second burning furnace along an annular path. The burning apparatus circulates exhaust gases generated in the burning furnace and cooling device to control a temperature and an oxygen concentration and thus improves a metallization rate of the reduced iron.

Abstract: A method for producing a stabilizer and a heating device allows the entirety of a hollow member to be uniformly heated to a temperature necessary for heat treatment, even in a case in which a cross section varying hollow member is used as the starting material. In a preliminary heating process, energizing heating is performed between electrodes, which are arranged at cross section varying parts at both ends of large cross sectional area part, which can be heated. In an entire heating process, by performing energizing heating between electrodes, which are arranged at both ends of the cross section varying hollow member, the latter can be heated. In the preliminary heating process, it is desirable to perform energization heating at a part having a cross sectional area ratio of 90% or more with respect to the part having a large cross sectional area in the cross section varying part.

Abstract: A method of forming a wear protection layer for a machine component that forms a slide pairing with a further machine component includes gas-carbonitriding at least one of the machine components in order to minimize wear. The gas-carbonitriding includes forming a thin uniform bonding layer and a comparatively thick diffusion layer thereunder. The gas-carbonitriding is performed at a low temperature and for a long duration.

Abstract: According to some aspects, a system for producing a target molten metal composition is provided. The system includes a sorting device that sorts input pieces of metal based on a control signal. Sorted pieces of metal are melted in a furnace, and a sensor measures the composition of molten metal in the furnace and in response generates a control signal that is sent to the sorting device.