Abstract: The invention relates to a product and a process for fabricating a 1D, 2D, or 3D layered micro or nano component that comprises providing an electrode having a micro-scale or nano-scale tip, and applying electric current to the electrode tip in the presence of a micro-scale or nano-scale powder.

Abstract: A cold-rolled low-density steel sheet having excellent phosphorability is provided. An iron particle layer is disposed on the surface of the cold-rolled low-density steel sheet, and dispersed iron particles exist in the iron particle layer. The cold-rolled low-density steel sheet comprises 3.0% to 7.0% of element Al by mass percentage.

Abstract: Disclosed is a partially diffusion-alloyed steel powder having excellent fluidity, formability, and compressibility without containing Ni, Cr, and Si. A partially diffusion-alloyed steel powder having excellent fluidity, formability, and compressibility that includes an iron-based powder and Mo diffusionally adhered to a surface of the iron-based powder, in which Mo content is 0.2 mass % to 2.0 mass %, a weight-based median diameter D50 is 40 ?m or more, and among particles contained in the partially diffusion-alloyed steel powder, those particles having an equivalent circular diameter of 50 ?m to 200 ?m have a number average of solidity of 0.70 to 0.86, the solidity being defined as (particle cross-sectional area/envelope-inside area).

Abstract: Provided are a high-carbon hot-rolled steel sheet with excellent formability and hardenability and a method for manufacturing the same. The high-carbon hot-rolled steel sheet has a composition containing, on a mass basis, C: 0.10% to 0.33%, Si: 0.15% to 0.35%, Mn: 0.5% to 0.9%, P: 0.03% or less, S: 0.010% or less, sol. Al: 0.10% or less, N: 0.0065% or less, and Cr: 0.90% to 1.5%, the remainder being Fe and inevitable impurities, has a microstructure containing ferrite and cementite, a cementite density being 0.25 grains/?m2 or less, and has a hardness of 110 HV to 160 HV and a total elongation of 40% or more.

Abstract: A simple and practical antibacterial treatment with nisin in cracked or uncracked metal tools is provided and easily monitored for its bacteriocin effect.

Abstract: The main steps are as follows: purification, de-leading, recovery and filtration, dissolving lead, hot filtration, cooling filtration, washing and hot decomposition, silver is recycled as silver powder, lead was recovered in the form of red lead, yellow lead and chlorinated lead respectively. Compared to existing technologies, the invention adopts a wet process, the amount of waste gas and dust produced in the process of fire treatment is reduced; silver powder, red (yellow) lead and chloride lead were obtained, it can be sold as final product with high value-added features. The tail liquid produced by the process returns to the corresponding process respectively, and the tailless liquid is discharged. The pyrolysis flue gas returns to the lead removal process, flue gas treatment process is reduced, lead smoke pollution is avoided. This method has the characteristics of simple technics and pollution-free process.

Abstract: A solder joint which is used in power devices and the like and which can withstand a high current density without developing electromigration is formed of a Sn—Ag—Bi—In based alloy. The solder joint is formed of a solder alloy consisting essentially of 2-4 mass % of Ag, 2-4 mass % of Bi, 2-5 mass % of In, and a remainder of Sn. The solder alloy may further contain at least one of Ni, Co, and Fe.

Abstract: Provided is a steel material for high heat input welding having excellent welding heat affected zone low-temperature toughness at ?55° C. in the case that the steel material is welded by high heat input welding with a heat input of more than 80 kJ/cm. The steel material may be used in low-temperature storage tanks, for example. The steel material for high heat input welding includes, in mass %, C: 0.04 to 0.09%, Si: 0.15 to 0.25%, Mn: 1.40 to 2.00%, P: 0.015% or less, S: 0.0005 to 0.0040%, Al: 0.030 to 0.080%, Ti: 0.005 to 0.025%, B: 0.0003 to 0.0020%, Ca: 0.0005 to 0.0030%, N: 0.0030 to 0.0060%, O: 0.0040% or less, Nb: 0.005% or less, and Mo: 0.005% or less, the balance being Fe and incidental impurities.

Abstract: The disclosure relates to a method for preparing Ti(C,N)-based superhard metal composite materials, with Ti(C,N) powder and (W,Mo,Ta)(C,N) powder as main raw materials and Co powder as binding phase for preparation, thereby obtaining a material in which a microstructure is a double-core rim structure that has both a black core rim and a white core rim. The material has a complete and evenly distributed double-core rim structure. In the condition that the ensured hardness of the material is not reduced and even slightly increased, the toughness of the material is significantly improved, wherein the fracture toughness of the material is in the range of 11.3 to 12.5 MPa·m1/2.

Abstract: A deposition mask in which deformation of long sides is restrained is manufactured. A manufacturing method of a deposition mask includes a step of preparing a metal plate; a processing step of processing the metal plate into an intermediate product comprising: a plurality of deposition mask portions each including a pair of long sides and a pair of short sides, and having a plurality of through-holes formed therein; and a support portion that surrounds the plurality of deposition mask portions, and is partially connected to the short sides of the plurality of deposition mask portions; and a separation step of separating the deposition mask portions from the support portion to obtain the deposition mask. In the intermediate product, the long sides of the deposition mask portions are not connected to the support portion.

Abstract: A calcium-bearing magnesium and rare earth element alloy consists essentially of, in mass percent, zinc (Zn): 1-3%; aluminum (Al): 1-3%; calcium (Ca): 0.1-0.4%; gadolinium (Gd): 0.1-0.4%; yttrium (Y): 0-0.4%; manganese (Mn): 0-0.2%; and balance magnesium (Mg).

Abstract: A cold rolled steel sheet, the steel containing, in weight percentage, 0.19%?carbon?0.24%, 1.9%?manganese?2.2%, 1.4%?silicon?1.6%, 0.01%?aluminum?0.06%, 0.2%?chromium?0.5%, phosphorus?0.02%, sulfur?0.003%, the balance including iron and unavoidable impurities, the steel sheet having a microstructure containing 5% to 15% of tempered martensite, 10% to 15% of residual austenite, the balance containing bainite, bainite content being at least 70%, is described. Also described is a manufacturing method and with use of such grade for making vehicle parts.

Abstract: A hot rolled steel sheet is provided, which is excellent in collision characteristics, excellent in anisotropy of toughness, and high in strength. The hot rolled steel sheet is characterized by containing, by mass %, C: 0.10% to 0.50%, Si: 0.10% to 3.00%, Mn: 0.5% to 3.0%, P: 0.100% or less, S: 0.010% or less, Al: 1.00% or less, N: 0.010% or less and a balance of Fe and impurities, wherein a metal structure at position of ¼ thickness from surface in L-cross-section of the steel sheet comprises prior austenite grains of average value of aspect ratios of 2.0 or less, average grain size of 0.1 ?m to 3.0 ?m, and coefficient of variation of a standard deviation of grain size distribution/average grain size of 0.40 or more, and a texture with X-ray diffraction intensity ratio of {001}<110>orientation for random samples of 2.0 or more, and the steel sheet has tensile strength of 1180 MPa or more.

Abstract: A method for forming a component includes providing a first layer of a mixture of first and second powders. The method includes determining the frequency of an alternating magnetic field to induce eddy currents sufficient to bulk heat only one of the first and second powders. The alternating magnetic field is applied at the determined frequency to a portion of the first layer of the mixture using a flux concentrator. Exposure to the magnetic field changes the phase of at least a portion of the first powder to liquid. The liquid portion couples to at least some of the second powder and subsequently solidifies to provide a composite component.

Abstract: Material processing systems are disclosed. Some systems include methods of eliminating or reducing defects in elongate workpieces that can undergo large deformations during processing. Some systems include apparatus configured to facilitate such large deformations while maintaining internal stresses (e.g., tensile stresses) below a threshold stress. Some disclosed systems pertain to powder extrusion techniques. Continuous and batch processing systems are disclosed.

Abstract: Magnesium alloy containing, in % by mass, 1.0 to 2.0% of Zn, 0.05 to 0.80% by mass of Zr, 0.05 to 0.40% by mass of Mn, and the balance consisting of Mg and unavoidable impurities. The magnesium alloy may further contain, in % by mass, 0.005% or more and less than 0.20% of Ca.

Abstract: In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.

Abstract: Disclosed is an alloyed steel powder for powder metallurgy from which sintered parts that do not contain expensive Ni, or Cr or Mn susceptible to oxidation, that have excellent compressibility, and that have high strength in an as-sintered state can be obtained. The alloyed steel powder for powder metallurgy has: a chemical composition containing Mo: 0.5 mass % to 2.0 mass % and Cu: 1.0 mass % to 8.0 mass %, with the balance being Fe and inevitable impurities; and a microstructure in which an FCC phase is present at a volume fraction of 0.5% to 10.0%.

Abstract: The metal plate includes a plurality of pits located on the surface of the metal plate. The manufacturing method for a metal plate for use in manufacturing of a deposition mask includes an inspection step of determining a quality of the metal plate based on a sum of volumes of a plurality of pits located at a portion of the surface of the metal plate.

Abstract: A method of manufacturing a part includes additively manufacturing, with an additive manufacturing machine, at least one wall of the part having a first thickness from powder in a powder bed, and peening, with a peening system, at least a portion of the wall of the part. The peening induces plastic deformation in the portion of the wall. The portion of the wall that is peened has a second thickness less than the first thickness of the wall prior to peening. The second thickness of the portion of the wall may be less than a minimum thickness limit achievable by the additive manufacturing machine.