Abstract: A grain-oriented electrical steel sheet according to an aspect of the present invention includes: a steel sheet 1; an intermediate layer 4 containing Si and O, arranged on the steel sheet; and an insulation coating 3 arranged on the intermediate layer 4, in which the intermediate layer 4 contains a metal phosphide 5, a thickness of the intermediate layer 4 is 4 nm or more, and an abundance of the metal phosphide 5 present is 1% to 30% by cross-sectional area fraction in a cross section of the intermediate layer 4.

Abstract: A method of manufacturing a welded structure of a ferritic heat-resistant steel is provided that prevents Type IV damage and that has good on-site operability without adding a high B concentration. The method includes: the step of preparing a base material including 1.0 to 7.0% Cr, less than 0.005% B and other elements; the step of forming an edge on the base material; a pre-weld heat treatment step in which a region located between a surface of the edge and a position distant from the surface of the edge by a pre-weld heat treatment depth of 10 to 50 mm is heated to a temperature of 950 to 1050° C. and is held at this temperature for 10 to 30 minutes; a welding step in which the edge is welded to form the weld metal; and a post-weld heat treatment step in which a region located between the surface of the edge and a position distant therefrom by a distance not smaller than the pre-weld heat treatment depth and not greater than 100 mm is heated to a temperature of 680 to 750° C.

Abstract: Iron loss is reduced by increasing magnetic flux density. Disclosed is a non-oriented electrical steel sheet has a chemical composition containing, by mass %, C: 0.0050% or less, Si: 1.50% or more and 4.00% or less, Al: 0.500% or less, Mn: 0.10% or more and 5.00% or less, S: 0.0200% or less, P: 0.200% or less, N: 0.0050% or less, O: 0.0200% or less, and Ca: 0.0010% or more and 0.0050% or less, with the balance being Fe and inevitable impurities, in which the non-oriented electrical steel sheet has an Ar3 transformation temperature of 700° C. or higher, a grain size of 80 ?m or more and 200 ?m or less, and a Vickers hardness of 140 HV or more and 230 HV or less.

Abstract: Provided is a steel sheet with excellent abrasion resistance as well as excellent low-temperature toughness and ductility of a base material while having a high strength of a tensile strength of 1,100 MPa or more. The steel sheet is a high-strength steel sheet having a tensile strength of 1,100 MPa or more, wherein the components in the steel satisfy a defined composition, A-value represented by a defined formula (1) is 0.0015 or less, while E-value represented by a defined formula (3) is 0.95 or more, and a Brinell hardness HBW (10/3000) in a position at a depth of 2 mm from a surface of the steel sheet is 360 or more and 440 or less.

Abstract: A method for the fabrication of architected 3D high entropy alloy structures includes deriving a 3D architecture based on at least one physical property of a high entropy alloy; preparing a fabrication powder including a mixture of two or more metallic powders of nearly equal quantities; arranging a first layer of the fabrication powder on a platform proximate to an energy source; directing energy provided by the energy source to one or more portions of the fabrication powder until portions thereof are sufficiently heated to be melted into one or more solid portions; translating the platform relative to the energy source such that the platform is proximate to the energy source and arranging a second layer of the fabrication powder contiguous to the first layer of fabrication powder on the platform; whereby these steps of arranging, directing, and translating are repeated to form a structure with the derived 3D architecture.

Abstract: A non-oriented electrical steel sheet according to an aspect of the present invention contains, as a chemical composition, by mass %, C: more than 0% and 0.0050% or less, Si: 3.0% to 4.0%, Mn: 1.2% to 3.3%, P: more than 0% and less than 0.030%, S: more than 0% and 0.0050% or less, sol. Al: more than 0% and 0.0040% or less, N: more than 0% and 0.0040% or less, one or more of La, Ce, Pr, and Nd: 0.0005% to 0.0200% in total, Ca: 0.0005% to 0.0100%, Ti: 0.0005% to 0.0100%, Sn: 0% to 0.10%, Sb: 0% to 0.10%, Mg: 0% to 0.0100%, and a remainder including Fe and impurities, in which Si?0.5×Mn: 2.0% or more, and Si+0.5×Mn: 3.8% or more.

Abstract: The invention relates to a steel strip for producing a non-oriented electrical steel. To achieve greatly improved frequency-independent magnetic properties, in particular greatly reduced hysteresis losses, in comparison with known electrical steels, the following alloy composition in wt % is proposed: C: ?0.03, Al: 1 to 12, Si: 0.3 to 3.5, Mn: >0.25 to 10, Cu: >0.05 to 3.0, Ni: >0.01 to 5.0, total of N, S and P: at most 0.07, remainder iron and smelting-related impurities, with the optional addition of one or more elements from the group Cr, Mo, Zn and Sn, wherein the steel strip has an insulation layer substantially consisting of Al2O3 and/or SiO2 with a thickness in the range from 10 ?m to 100 ?m. The invention also relates to a method for producing such a steel strip.

Abstract: A method of heat treating high pressure die cast objects using pressure is disclosed. A high pressure die cast object is obtained and solution heat treated to above 700° F. for at least 2 hours at pressures between 0.5 and 35 KSI or at any pressure or range of pressures therebetween. This method of solution heat treatment with pressure reduces and/or eliminates blistered defects on the high pressure die cast object. The method of heat treating by solution heat treatment with pressure also allows an increase of yield strength and corresponding weight reduction upon redesign or substantially larger safety factors for the cast object.

Abstract: A method of fabricating a nitrided low-alloy steel part, includes a) decarburizing the surface of a low-alloy steel part including at least one alloying element that is both nitride-forming and carbide forming in order to obtain a decarburized part presenting a carbon-depleted surface layer of thickness less than or equal to 1.5 mm, the minimum content of carbon by weight in the carbon-depleted surface layer being less than or equal to 70% of the carbon content by weight in the core of the decarburized part; b) treating the decarburized part with quenching treatment followed by annealing treatment; and c) nitriding the carbon-depleted surface layer in order to obtain a nitrided low-alloy steel part, step c) being performed after step b).

Abstract: There are provided a ferrite stainless steel for a polymer fuel cell separator having excellent corrosion resistance and interfacial contact resistance under an operating environment of a polymer fuel cell, and a preparation method of the stainless steel. A stainless steel includes C: 0.02 wt % or less, N: 0.02 wt % or less, Si: 0.4 wt % or less, Mn: 0.2 wt % or less, P: 0.04 wt % or less, S: 0.02 wt % or less, Cr: 25.0 to 32.0 wt %, Cu: 0 to 2.0 wt %, Ni: 0.8 wt % or less, Ti: 0.5 wt % or less, Nb: 0.5 wt % or less, waste Fe and inevitably contained elements. A preparation method of the stainless steel having a second passive film formed on a surface thereof includes forming a first passive film on the surface of the stainless steel by bright-annealing or annealing-pickling the stainless steel; removing the first passive film by pickling the stainless steel in a 10 to 20 wt % sulfuric acid solution at a temperature of 50 to 75° C.

Abstract: The invention concerns a timepiece component containing a high-entropy alloy, the high-entropy alloy containing between 4 and 13 main alloying elements forming a single solid solution, the high-entropy alloy having a concentration of each main alloying element comprised between 1 and 55 at. %.

Abstract: The invention relates to a non-oriented electrical steel strip or sheet, in particular for electrical engineering applications, an electrical engineering component produced from such an electrical steel strip or sheet, a process for producing an electrical steel strip or sheet and the use of such an electrical steel strip or sheet in components for electrical engineering applications.

Abstract: Palladium-based ternary or higher alloys include palladium at about 45-55 wt %, copper about 32-42 wt %, silver at about 8-15 wt %, rhenium at about 0-5 wt %, and optionally one or more modifying elements at up to 1.0 wt %. The alloys are age-hardenable, provide hardness in excess of 350 HK (Knoop, 100 g load), have electrical conductivities above 19.5% IACS (International Annealed Copper Standard), have an elevated temperature strength above 100 ksi at temperatures up to 480° F. (250° C.), and remain ductile (tensile elongation>2%) in their fully age-hardened condition. The alloys may be used in static and moveable electrical contact and probe applications.

Abstract: Disclosed are ruthenium nanoparticles having an essentially face-centered cubic structure. Disclosed is a method for producing ruthenium nanoparticles having an essentially face-centered cubic structure. This production method includes a step (i) of maintaining a solution containing ruthenium (III) acetylacetonate, polyvinylpyrrolidone, and triethylene glycol at a temperature of 180° C. or higher.

Abstract: Provided are a metal sheet, a method of producing a metal sheet, a method of producing a molded product of a metal sheet, and a molded product of a metal sheet, in which occurrence of surface roughness is inhibited. Provided are a metal sheet satisfying conditions (a1), (b1) or (c1) at the surface and a method for producing the metal sheet. Also provided are a method for producing a molded product of a metal sheet using the metal sheet, and a molded product of the metal sheet. (a1) The area fraction of crystal grains having a crystal orientation divergent by 20° or more from a (111) plane and by 20° or more from a (001) plane is from 0.25 to 0.35, and the average crystal grain size is less than 16 ?m. (b1) The area fraction of crystal grains having a crystal orientation divergent by 20° or more from a (111) plane and by 20° or more from a (001) plane is from 0.15 to 0.30, and the average crystal grain size is 16 ?m or more. (c1) The area fraction of crystal grains with a Taylor Factor value from 3.0 to 3.

Abstract: Low temperature gas carburization of stainless steel using acetylene as the carburizing specie is carried out under soft vacuum conditions in the presence of hydrogen or other companion gas. Carburization is made to go faster by including HCl or other carbon-free, halogen-containing activating compound in the carburizing gas being fed to the carburization reactor.

Abstract: A method of heat treating a fastening member having a head portion, a shank portion, and a thread portion includes hardening the fastening member to a first hardness value. Hardening of the fastening member includes heating the fastening member at a first pre-set temperature value. The method also includes tempering the fastening member at a second pre-set temperature value to a second hardness value. The method further includes induction tempering the thread portion of the fastening member. Induction tempering of the thread portion includes heating the thread portion at a third pre-set temperature value to a third hardness value. The third hardness value of the thread portion is less than the second hardness value of the head portion and the shank portion.

Abstract: When a zone surrounded by a grain boundary that is measured to be 5.0° or more by an EBSD analysis is assumed to be a grain, and when a K value is a value obtained by multiplying an average value of Image Qualities in a grain by 10?3, a Y value is an average crystal misorientation (°) in the grain, a metallic phase 1 is a metallic phase the K value of which is less than 4.000, a metallic phase 2 is a metallic phase the K value of which is 4.000 or more and the Y value of which is 0.5 to 1.0, a metallic phase 3 is a metallic phase the K value of which is 4.000 or more and the Y value of which is less than 0.5, and a metallic phase 4 is a metallic phase that falls under none of metallic phases 1 to 3, there is provided a steel sheet that has a predetermined chemical composition and includes a microstructure including, in area percent, a metallic phase 1: 1.0% or more and less than 35.0%, a metallic phase 2: 30.0% or more and 80.0% or less, a metallic phase 3: 5.0% or more and 50.

Abstract: A non-oriented electrical steel sheet contains, as a chemical composition, by mass %, C: more than 0% and 0.0050% or less, Si: 3.0% to 4.0%, Mn: 1.0% to 3.3%, P: more than 0% and less than 0.030%, S: more than 0% and 0.0050% or less, sol. Al: more than 0% and 0.0040% or less, N: more than 0% and 0.0040% or less, O: 0.0110% to 0.0350%, Sn: 0% to 0.050%, Sb: 0% to 0.050%, Ti: more than 0% and 0.0050% or less, and a remainder including Fe and impurities, in which Sn+Sb: 0.050% or less, Si?0.5×Mn: 2.0% or more, and an O content in a sheet thickness central portion excluding a surface layer portion which is a range from a front surface and a rear surface to a position of 10 ?m in a depth direction is less than 0.0100%.

Abstract: Ti-based metal matrix composites, methods of their additive manufacture, and parts manufactured therefrom and thereby are provided. Method include layer-by-layer additive manufacturing for fabricating Ti-based metal matrix composite parts thicker than 0.5 mm, in layers with thickness between 10-1000 micrometers. The parts formed may have one or more of the following properties: a tensile strength greater than 1 GPa, a fracture toughness greater than 40 MPa m1/2, a yield strength divided by the density greater than 200 MPa cm3/g, and a total strain to failure in a tension test greater than 5%.