Abstract: A bearing steel composition contains 0.1 to 0.2 wt % C, 3.25 to 4.25 wt % Cr, 9.5 to 11.5 wt % Mo, 5.75 to 6.75 wt % W, 1.5 to 2.5 wt % V, and 2.5 to 3.5 wt % Ni. A bearing component, such as a rolling element, an inner race or outer race, is formed from the bearing steel composition, for example, by a powder metallurgical technique and then is subjected to a case hardening treatment. The bearing component may have a microstructure composed of martensite, retained austenite and at least one of carbides and/or carbonitrides. The carbon level at the surface of the bearing component may be 0.5 to 1.1 wt %.

Abstract: A method for preparing titanium alloy that is created to be formed into a bearing component, wherein the titanium alloy comprises from 5 to 7 wt % Al, from 3.5 to 4.5 wt % V, from 0.5 to 1.5 wt % Mo, from 2.5 to 4.5 wt % Fe, from 2.5 to 4.5 wt % Fe, and from 0.05 to 2 wt % Cr. The alloy can optionally include one or more of the following elements: up to 2.5 wt % Zr, up to 2.5 wt % Sn, and up to 0.5 wt % C. The balance of the composition comprises Ti together with unavoidable impurities. The alloy is heated to a temperature T below the (?+?/?)-transition temperature T? and then quenched. The alloy is then aged a temperature of from 400 to 600° C.

Abstract: A method of forming a workpiece having an initial heat treatment and made of a naturally aging alloy to a final shape using an incremental sheet forming (ISF) machine having a coordinate system and a tool path corresponding to the final shape of the workpiece is disclosed. The method comprises positioning the workpiece in the ISF machine; performing an initial forming operation on the workpiece using the ISF machine; performing a final heat treatment on the workpiece; repositioning the workpiece in the ISF machine; and, with the workpiece in a final workpiece orientation in the ISF machine and the tool path of the ISF machine in a final tool-path orientation in the ISF machine, performing a final forming operation on the workpiece using the ISF machine to achieve the final shape of the workpiece. Intermediate heat treatments and intermediate forming operations in the ISF machine may also be performed.

Abstract: A method for producing a motor vehicle component includes the steps of providing a precipitation-hardenable blank composed of a 6000 or 7000 grade aluminum alloy, solution-annealing the blank at a temperature between 350° C. and 550° C. for a time period of 2 to 30 min., in particular 3 to 20 min. and preferably 5 to 15 min., in particular at a temperature between 440° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° C. in the case of a 6000 grade aluminum alloy, subjecting the solution-annealed blank to partially different quenching, a first region being quenched to a temperature between 150° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching.

Abstract: A dual phase or complex phase steel strip showing no tigerstripes. The steel strip having an ultimate tensile strength Rm classifying for 1000 MPa steel category, includes (in mass percent) C 0.09-0.19%; Mn 1.9-2.6%; Si at most 0.1%; Cr 0.4-0.8%; Mo at most 0.3%; Ni at most 0.4%; Al 0.02-1.3%; and optionally one or more of the following elements: Nb at most 0.08%; P equal to or more than 0.0005%; N equal to or less than 0.015%; Ti equal to or less than 0.1%; V equal to or less than 0.1%; B equal to or less than 0.01%; wherein the sum of Cr, Mo and Ni is at least 0.5%; the balance being Fe and inevitable impurities.

Abstract: The present invention provides a high-strength wear-resistant steel plate with Brinell hardness of ?HB420, comprising the following chemical compositions (by weight %) C: 0.205-0.25%, Si: 0.20-1.00%, Mn: 1.0-1.5%, P?0.015%, S?0.010%, Al: 0.02-0.04%, Ti: 0.01-0.03%, N?0.006%, Ca?0.005%, and at least one of Cr?0.70%, Ni?0.50%, Mo?0.30%, other compositions being Ferrum and unavoidable impurities. Also provided is a method of manufacturing the wear-resistant steel plate has remarkable TRIP effect in use, improving substantially its wear resistance, thereby meeting the high demand for wear-resistant steel plates in related industries.

Abstract: A steel plate with a low yield ratio and high toughness. The steel plate comprises components of, by weight: C (0.05-0.08%), Si (0.15-0.30%), Mn (1.55-1.85%), P (less than or equal to 0.015%), S (less than or equal to 0.005%), Al (0.015-0.04%), Nb (0.015-0.025%), Ti (0.01-0.02%), Cr (0.20-0.40%), Mo (0.18-0.30%), N (less than or equal to 0.006%), O (less than or equal to 0.004%), Ca (0.0015-0.0050%), and Ni (less than or equal to 0.40%), a ratio of Ca to S being greater than or equal to 1.5, and the residual being Fe and inevitable impurities.

Abstract: A process for making steel armor products for use, for example as body armor. The steel armor product made has a compound curve and is made from a flat blank of armor steel by high-temperature annealing an armor steel blank to slightly above its austenitizing temperature, then followed by a slow, temperature-controlled cooling it, over-pressing the annealed blank to a first configuration so it springs back to a second configuration approximating the desired product shape when released from the press, and then heat-treating the product back to its austenitizing temperature, quenching it, and tempering it at a low temperature. The tool is conveniently made by lamination, using a series of thin plates of tool steel each cut to produce an approximation of the desired die.

Abstract: A non-grain-oriented electrical steel strip or sheet consisting of a steel which contains, in addition to iron and unavoidable impurities, (in wt. %) Si: 1.0-4.5%, Al: up to 2.0%, Mn: up to 1.0%, C: up to 0.01%, N: up to 0.01%, S: up to 0.012%, Ti: 0.1-0.5% P: 0.1-0.3%, wherein 1.0?% Ti/% P?2.0 applies for the % Ti/% P ratio. The NGO sheet or strip can be manufactured by cold rolling a hot strip of a steel having the previously mentioned composition into a cold strip and subjecting this cold strip to a final annealing process. Different variants of this final annealing process may be used to accentuate the properties of the strip or sheet. The non-grain-oriented electrical steel strip or sheet and components manufactured from such a sheet or strip for electrotechnical applications are characterized by increased strength and good magnetic properties.

Abstract: A hot-rolled steel sheet satisfies that average pole density of orientation group of {100}<011> to {223}<110> is 1.0 to 5.0 and pole density of crystal orientation {332}<113> is 1.0 to 4.0. Moreover, the hot-rolled steel sheet includes, as a metallographic structure, by area %, ferrite and bainite of 30% to 99% in total and martensite of 1% to 70%. Moreover, the hot-rolled steel sheet satisfies following Expressions 1 and 2 when area fraction of the martensite is defined as fM in unit of area %, average size of the martensite is defined as dia in unit of ?m, average distance between the martensite is defined as dis in unit of ?m, and tensile strength of the steel sheet is defined as TS in unit of MPa.

Abstract: Methods of refining the grain size of a titanium alloy workpiece include beta annealing the workpiece, cooling the beta annealed workpiece to a temperature below the beta transus temperature of the titanium alloy, and high strain rate multi-axis forging the workpiece. High strain rate multi-axis forging is employed until a total strain of at least 1 is achieved in the titanium alloy workpiece, or until a total strain of at least 1 and up to 3.5 is achieved in the titanium alloy workpiece. The titanium alloy of the workpiece may comprise at least one of grain pinning alloying additions and beta stabilizing content effective to decrease alpha phase precipitation and growth kinetics.

Abstract: The present invention provides a method for manufacturing a metal material. The method comprises a temperature increasing step of increasing the temperature of a silver material having undergone final plastic working to 700° C. or more and less than a melting point of the silver material in a vacuum or a helium gas atmosphere, a heating step of maintaining the silver material at 700° C. or more and less than the melting point, and a cooling step of cooling the silver material to room temperature in a vacuum or a helium gas atmosphere. For a part of the period of the heating step, the silver material is heated in a mixed atmosphere in which hydrogen gas is mixed with helium gas.

Abstract: A hydrogen gas generating member includes a metal alloy having dispersed aluminum. The metal alloy includes an Al—X alloy, where X is Sn: 10.1 to 99.5% by mass, Bi: 30.1 to 99.5% by mass, In: 10.1 to 99.5% by mass, Sn +Bi: 20.1 to 99.5% by mass, Sn +In: to 10 to 99.5% by mass, Bi+In: 20.1 to 99.5% by mass, or Sn+Bi+In: 20 to 99.5% by mass. Hydrogen gas is generated by bringing the hydrogen gas generating member into contact with water.

Abstract: A method for producing high strength aluminum alloy product from powder containing L12 intermetallic dispersoids using high pressure gas atomization to deposit droplets on a substrate prior to complete solidification to form a billet. The sprayed deposit is hot worked using extrusion, forging and rolling to densify the structure by eliminating porosity, improving mechanical properties and to produce different shapes of components.

Abstract: The present invention is a heat-resistant material comprising a Rh-based alloy, wherein the Rh-based alloy is a high heat-resistant and high strength alloy comprising a Rh-based alloy where Al and W as essential additive elements are added to Rh (0.2 to 15.0 mass % of Al, 15.0 to 45.0 mass % of W and Rh as the remainder), and a ?? phase (Rh3 (Al, W)) having an L12 structure is dispersed as a strengthening phase in a matrix. The Rh-based alloy of the present invention can be further improved in workability and high temperature oxidation characteristics by optionally adding B, C, Mg, Ca, Y, La or misch metals, Ni, Co, Cr, Fe, Mo, Ti, Nb, Ta, V, Zr, Hf, Ir, Re, Pd, Pt or Ru as an additive element. The Rh-based alloy of the present invention is a heat-resistant material having excellent high-temperature-resistant characteristics and a good balance of factors such as weight.

Abstract: The present invention provides a method for manufacturing a hot stamped body, the method including: a hot-rolling step; a coiling step; a cold-rolling step; a continuous annealing step; and a hot stamping step, in which the continuous annealing step includes a heating step of heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac1° C. and lower than Ac3° C.; a cooling step of cooling the heated cold-rolled steel sheet from the highest heating temperature to 660° C. at a cooling rate of equal to or less than 10° C./s; and a holding step of holding the cooled cold-rolled steel sheet in a temperature range of 550° C. to 660° C. for one minute to 10 minutes.

Abstract: Disclosed herein is a high Cr Ferritic/Martensitic steel comprising 0.04 to 0.13% by weight of carbon, 0.03 to 0.07% by weight of silicon, 0.40 to 0.50% by weight of manganese, 0.40 to 0.50% by weight of nickel, 8.5 to 9.5% by weight of chromium, 0.45 to 0.55% by weight of molybdenum, 0.10 to 0.25% by weight of vanadium, 0.02 to 0.10% by weight of tantalum, 0.21 to 0.25% by weight of niobium, 1.5 to 3.0% by weight of tungsten, 0.015 to 0.025% by weight of nitrogen, 0.01 to 0.02% by weight of boron and iron balance. By regulating the contents of alloying elements such as nitrogen, born, the high Cr Ferritic/Martensitic steel with superior tensile strength and creep resistance is provided, and can be effectively used as an in-core component material for sodium-cooled fast reactor (SFR).

Abstract: A dual phase or complex phase steel strip showing no tigerstripes. The steel strip includes, in mass percent, the following elements: C 0.08-0.11%; Mn 1.70-2.20%; Si at most 0.1%; Cr 0.40-0.70%; Mo at most 0.3%; Ni at most 1.0%, Al 0.01-1.50%; Nb at most 0.07%; P equal to or more than 0.005%; N equal to or less than 0.015%; Ti equal to or less than 0.1%; V equal to or less than 0.1%; B equal to or less than 0.01%; wherein the sum of Cr, Mo and Ni is at least 0.5%; the balance being Fe and inevitable impurities.

Abstract: A process for manufacturing a cold rolled high strength dual phase steel. The process includes soaking a steel slab within a temperature range of 1200-1300° C., hot rolling the soaked steel slab in a roughing treatment and producing a transfer bar, and hot rolling the transfer bar in a finishing treatment and producing hot rolled strip. The hot rolled strip is cold rolled with at least a 55% reduction in thickness. The cold rolled sheet is intercritically annealed at a temperature between 790-840° C. and rapidly cooled to a temperature between 450-500° C. The rapidly cooled sheet has a ferrite plus martensite microstructure, a 0.2% yield strength of at least 550 MPa, a tensile strength of at least 980 MPa and a total elongation to failure of at least 10%.

Abstract: A non-oriented electrical steel sheet comprising, Si: not less than 1.0 mass % nor more than 3.5 mass %, Al: not less than 0.1 mass % nor more than 3.0 mass %, Ti: not less than 0.001 mass % nor more than 0.01 mass %, Bi: not less than 0.001 mass % nor more than 0.01 mass %, wherein Expression (1) is satisfied when a Ti content (mass %) is represented as [Ti] and a Bi content (mass %) is represented as [Bi]: [Ti]?0.8×[Bi]+0.002 . . . (1).