Abstract: A polycrystalline cubic boron nitride comprising 96% by volume or more of cubic boron nitride, wherein the cubic boron nitride has a dislocation density of more than 8×1015/m2, the polycrystalline cubic boron nitride comprises a plurality of crystal grains, and the plurality of crystal grains have a median diameter d50 of an equivalent circle diameter of less than 100 nm.

Abstract: A rotor blade of a turbomachine, having a blade root, a blade airfoil which has a flow leading edge, a flow trailing edge, and flow-guiding surfaces extending between the flow leading edge and the flow trailing edge. The blade root and a radially inner section of the blade airfoil are made of a steel material, and a radially outer section of the blade airfoil is made of a more lightweight material.

Abstract: A turbine wheel for a turbocharger of a vehicle propulsion system includes a central hub and a plurality of blades extending outwardly from the central hub. Each of the blades defining an inducer section and an exducer section, and each of the blades including a first surface portion and a second surface portion. The first surface portion including a thermal barrier coating and the second surface portion free from the thermal barrier coating.

Abstract: A heat treatment technique may include heating an alloy component to a temperature above a transition temperature of the alloy or heating an alloy component to a temperature below the transition temperature of the alloy. The heat treatment technique further may include cooling a first portion of the alloy component at a first cooling rate, and cooling a second portion of the alloy component at a second cooling rate different than the first rate. The first cooling rate may result in formation of a plurality of first precipitate phase domains comprising a first average size in the first portion, and the second cooling rate may result in formation of a plurality of second precipitate phase domains comprising a second average size in the second portion. The average size of the first precipitate phase domains may be different than the average size of the second precipitate phase domains.

Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.

Abstract: An inner surface finishing tool enables machining of a workpiece made of a material machinable with a relatively large burnishing amount while reducing deformation at the opening of the workpiece or deterioration of its geometrical tolerance during machining of the inner peripheral surface. The tool includes a mandrel rotatable relative to the workpiece and includes a polygonal member, and a frame that is cylindrical and fitted onto the mandrel in a rotatable manner and has an axis extending in an axial direction of the mandrel and holds a plurality of first rollers and a plurality of second rollers rollable on an outer peripheral surface of the mandrel. The polygonal member rotates the plurality of second rollers to move inward and outward in a radial direction of the frame.

Abstract: A production method for an Fe—Ni based heat-resistant superalloy inhibits abnormal grain growth and yields a fine crystal grain structure having an ASTM crystal grain size number of 9 or greater. The production method comprises at least a hot working step in which a material having a prescribed composition is subjected to hot working, wherein the hot working step includes at least a step in which the above material of 930 to 1010° C. is subjected to hot working so that the relation of (effective strain)?0.139×(effective strain rate(/sec))?0.30 is satisfied in the entirety of the above material.

Abstract: A synchronizer hub for vehicles and a method for manufacturing the same forms an inner spline and an outer spline of a transmission synchronizer hub for vehicles by using different materials. The synchronizer hub may be manufactured by filling inner powders for forming the inner spline, molding the inner spline, filling outer powders for forming the outer spline, molding the outer spline, separating the double molded object obtained by integrally forming the inner spline and the outer spline from a mold, and performing sintering, post-processing, and high-frequency heating processes.

Abstract: The present invention is an electroconductive particle for forming an electrode including a precious metal particle including Pt or a Pt alloy and having an average particle diameter of 50 to 150 nm, a first ceramic particle including Al2O3 or ZrO2 dispersed in the precious metal particle and having an average particle diameter of 5 to 50 nm, and a second ceramic particle including Al2O3 or ZrO2 bonded to an outer periphery of the precious metal particle and having an average particle diameter of 5 to 50 nm. The sum of the volume of the first ceramic particle and the volume of the second ceramic particle is preferably 2 to 40 vol % based on the whole electroconductive particle. A metal paste containing the electroconductive particle according to the invention is one from which an electrode film of low resistance and excellent durability can be manufactured and further excellent in adherence and conformability to a substrate.

Abstract: One embodiment provides a tungsten wire containing 1 to 10% by mass of rhenium, the wire having a point indicating a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order; wherein the wire diameter of the tungsten wire is represented by x ?m, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x ?m, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current.

Abstract: The present invention provides a technology for recovering high-content tantalum from tantalum-containing waste with reducing various impurities such as antimony (Sb) and phosphorus (P) which hinder reuse of the tantalum in tantalum capacitors. The method for recovering tantalum from tantalum-containing waste according to the present invention is characterized in that tantalum-containing waste is subjected to an acid treatment and then to an alkali treatment, thereby recovering tantalum. The acid treatment is preferably performed with use of an acid containing hydrochloric acid and the alkali treatment is preferably performed with use of sodium hydroxide or potassium hydroxide. The tantalum-containing waste in the present invention is preferably a tantalum sintered compact collected from a tantalum capacitor.

Abstract: A sintered coupling ring (1) is described, comprising a ring of coupling teeth (2) which comprise relieved flanks (4) extending from wedge-shaped end faces (3) and, on the side opposite the wedge-shaped end faces (3), a stop (5) that protrudes radially beyond the tooth tip (6). In order to provide advantageous constructional conditions it is proposed that the stops (5) have a greater density than the remaining tooth tip (6).

Abstract: The present invention provides iron-based infiltration methods for manufacturing powder metallurgy components, compositions prepared from those methods, and methods of designing those infiltration methods. Iron-based infiltration methods table include the steps of providing an iron-based infiltrant composed of a near eutectic liquidus composition of a first iron based alloy system and an iron-based base compact composed of a near eutectic solidus powder composition of a second iron based alloy system. The base compact is placed in contact with the infiltrant and heated to a process temperature above the melting point of the infiltrant to form a liquid component of the infiltrant. Lastly, the base compact is infiltrated with the liquid component of the infiltrant. During infiltration, the liquid component of the infiltrant flows into the pores of the base compact.

Abstract: Provided is a method for producing hot briquette iron by hot-forming high-temperature reduced iron reduced in a reducing furnace, involving cooling the high-temperature reduced iron and controlling the temperature of the reduced iron to an appropriate hot-forming temperature of over 600° C. and 750° C. or less, producing hot briquette iron by hot-forming the high-temperature reduced iron at an appropriate hot-forming temperature with a briquetting machine.

Abstract: A method of forging a nickel base superalloy comprising providing a nickel base superalloy preform (40) with a first predetermined shape, the nickel base superalloy preform having been produced by powder metallurgy. The nickel base superalloy preform (40) is forged to produce a nickel base superalloy forged component (50) with a second predetermined shape. The first predetermined shape and the second predetermined shape are arranged such that the effective strain at the end of the forging is less than 1. The nickel base superalloy forged component (50) is given a supersolvus heat treatment to produce a large grain size in the nickel base superalloy forged component (50).

Abstract: A rare earth magnet is prepared by disposing a R1-T-B sintered body comprising a R12T14B compound as a major phase in contact with an R2-M alloy powder and effecting heat treatment for causing R2 element to diffuse into the sintered body. The alloy powder is obtained by quenching a melt containing R2 and M. R1 and R2 are rare earth elements, T is Fe and/or Co, M is selected from B, C, P, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ag, In, Sn, Sb, Hf, Ta, W, Pt, Au, Pb, and Bi.

Abstract: A sintered clutch ring (1) is described, comprising a rim of clutch teeth (2) which comprise wedge-like face surfaces (3, 4) intersecting in an axial plane and flanks (5) sloping downwardly under an angle of inclination from the tooth back (6) against the tooth root, with the flanks (5) being relieved starting from a re-entrant, axially normal shoulder (7). In order to provide advantageous conditions for press forming the flank reliefs it is proposed that the planes of intersection between the wedge-like face surfaces (3, 4) extend outside of the center of the teeth and that the mutually axially offset shoulders (7) of the two flanks (5) of the clutch teeth (2) separate the relieved flanks (5) from a paraxial flank portion (8) which is substantially triangular and is adjacent to the face surfaces (3, 4).

Abstract: A method for fabricating a copper-gallium alloy sputtering target comprises forming a raw target; treating the raw target with at least one thermal treatment between 500° C.˜850° C. being mechanical treatment, thermal annealing treatment for 0.5˜5 hours or a combination thereof to form a treated target; and cooling the treated target to a room temperature to obtain the copper-gallium alloy sputtering target that has 71 atomic % to 78 atomic % of Cu and 22 atomic % to 29 atomic % of Ga and having a compound phase not more than 25% on its metallographic microstructure. Therefore, the copper-gallium alloy sputtering target does not induce micro arcing during sputtering so a sputtering rate is consistent and forms a uniform copper-gallium thin film. Accordingly, the copper-gallium thin film possesses improved quality and properties.

Abstract: A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order, wherein the wire diameter of the aforementioned tungsten wire is represented by x ?m, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x ?m, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the aforementioned wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current.

Abstract: An apparatus for rolling of a powder metallurgical metallic workpiece is provided having a feeding device, a first induction heating apparatus in operable communication with a first RF generator and at least a first hot rolling mill. A process control device monitors at least one parameter of the first RF generator and outputs a signal. A method for continuous rolling of a metallic workpiece is also provided using the apparatus for rolling. The process control device signal can be used to monitor metallurgical properties of the workpiece and provide in-line evaluation of the workpiece.

Abstract: After an alloy powder including W, Cr, at least one of Ti, Zr, and Hf, and at least one of V, Nb, and Ta is produced, the alloy powder, a powdery carbon material, and a catalyst are heat-treated in the presence of a nitrogen gas. The alloy powder is carbonitrided into a multicomponent ceramics powder, and sintered into a sintered body. Alternatively, a powder of a first substance including at least two of Ti, Al, V, Nb, Zr, Hf, Mo, Ta, Cr, and W is molded into a molded body. Then, the surface of the molded body is surrounded by a second substance including a metal element which is not contained in the powder of the first substance, and the molded body is heat-treated in an atmosphere in which N is present. A porous sintered body thus produced is crushed into a multicomponent ceramics powder.

Abstract: A bimetallic doctor blade (1) has a support strip (20) made of conventionally produced steel and a working edge (10) made of a steel produced by a powder metallurgical process. Also disclosed is a method for producing this type of bimetallic doctor blade (1), wherein a flat wire is produced from metal powder by a powder metallurgical process, and the flat wire is then welded to a conventionally produced support strip (20) made of steel in order to form a bimetallic doctor blade with a support strip (20) and a working edge (10).

Abstract: A method for recovering a catalyst for a fuel cell includes a collection step in which a catalyst is collected by attracting, using a magnetic force, a magnetic material contained in at least one of the catalyst and a carrier on which the catalyst is supported. A system for recovering a catalyst for a fuel cell includes a collection device that attracts, using a magnetic force, a magnetic material contained in at least one of a catalyst and a carrier on which the catalyst is supported.

Abstract: Infiltration compositions comprising chromium and at least about 80% copper. The infiltration compositions may further comprise iron, zinc, manganese, antimony and/or lubricants. Also, methods for infiltrating powder metal parts comprising contacting a powder metal part with the infiltration composition comprising chromium and at least about 80% copper and heating the powder metal part and infiltration composition to a temperature sufficient to melt the infiltration composition and allow the infiltration composition to infiltrate through pores in the powder metal part.

Abstract: The present invention relates to a steel band 1 for the manufacturing of doctor blades, coater blades or creping blades comprising a steel composition comprising in percent per weight 1-3% C, 4-10% Cr, 1-8% Mo, 2.5-10% V and the remainder essentially iron and contaminants in normal amounts, wherein the steel band 1 is produced by using a powder metallurgical process. Further, this invention relates to doctor blades, coater blades or creping blades of this steel band, as well as a method for its manufacture.

Abstract: A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order, wherein the wire diameter of the aforementioned tungsten wire is represented by x &mgr;m, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x &mgr;m, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the aforementioned wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current.

Abstract: A superalloy made of a forging nickel-base superalloy such as Rene™ 88DT or ME3 is forged in a forging press having forging dies made of a die nickel-base superalloy. The forging is accomplished by heating to a forging temperature of from about 1700° F. to about 1850° F., and forging at that forging temperature and at a nominal strain rate. The die nickel-base superalloy is selected to have a creep strength of not less than a flow stress of the forging nickel-base superalloy at the forging temperature and strain rate.

Abstract: The present invention teaches a method in which a cemented carbide product is prepared such that the ease and quality of brazing is improved. The process involves a controlled heat treatment such that the surface of the carbide is enriched with cobalt from the carbide matrix. This cobalt surface enhances the wettability and flow during brazing and provides for improved bond strength.

Abstract: The invention is intended to establish means for manufacturing MB2 single crystals and to provide a useful superconductive material (wire rod and so forth) taking advantage of anisotropic superconductive properties thereof. A mixed raw material of Mg and B or a precursor containing MgB2 crystallites, obtained by causing reaction of the mixed raw material of Mg and B, kept in contact with hexagonal boron nitride (hBN), is held at a high temperature in the range of 1300 to 1700° C. and under a high pressure in the range of 3 to 6 GPa to cause reaction for forming an intermediate product, thereby growing the MB2 single crystals having anisotropic superconductive properties via the intermediate product.

Abstract: The invention includes a method of producing a hard metallic material by forming a mixture containing at least 55% iron and at least one of B, C, Si and P. The mixture is formed into an alloy and cooled to form a metallic material having a hardness of greater than about 9.2 GPa. The invention includes a method of forming a wire by combining a metal strop and a powder. The strip and the powder are rolled to form a wire containing at least 55% iron and from 2-7 additional elements including at lease one of C, Si and B. The invention also includes a method of forming a hardened surface on a substrate by processing a solid mass to form a power, applying the powder to a surface to forma a layer containing metallic glass, and converting the glass to a crystalline material having a nanocrystalline grain size.

Abstract: In a metalliferous storage material for hydrogen a metal oxide is provided in or on the surface of the metalliferous materialas a catalyst for the hydrogenation or dehydrogenation of the metalliferous storage material.

Abstract: The present invention concerns a method of improving the properties of powder metallurgically produced SMC compacted body consisting of a soft magnetic material of insulated powder particles and a lubricant, to a stress relieving heat treatment in a furnace until the component has reached a temperature of at least 400° C. in an oxygen containing atmosphere having a CO content is less than 0.25% by volume.

Abstract: A method of producing a corrosion resistant ferrous product is disclosed. The product is produced by rolling a heated billet which comprises a mass of mild steel swarf in a stainless steel jacket. Two reducing agents are present in the jacket when the billet is heated. The first reducing agent is in the form of powdered aluminum, titanium turnings or other metal having a greater affinity for oxygen than chrome and which promotes the formation of CO rather than CO2 from air or oxygen which enters or evolves in the billet above about 800° C. The second reducing agent is in gaseous or vapour form substantially below that temperature. The second reducing agent may be provided by premixing with the swarf such substances as ammonium chloride or urea, which dissociate to form reducing gases when heated. Alternatively, the billet can be heated in a reducing furnace and the gas in the furnace may act as the second reducing agent.

Abstract: A method of making a composite powder metal disk for a rotor assembly in a synchronous reluctance machine. The method includes filling discrete regions of a disk-shaped die with ferromagnetic and non-ferromagnetic powder metals, compacting to powders, and sintering the compacted powders. By this method, a disk is formed that includes alternating regions of magnetically conducting powder metal and magnetically non-conducting powder metal compacted and sintered to a high density. The method may also include forming a rotor assembly by stacking a plurality of the composite powder metal disks axially along a shaft with their magnetic configurations aligned.

Abstract: The invention relates to a method of a composite material from superposed layers of solid and frothable metallic materials. The structural component consists of at least one layer of a solid metallic material and at least one layer of frothable metallic material. The structural component may be structured as a composite sheet or as a hollow body. The fabrication method of the structural component insures a good bond between the solid metallic layer and the frothable layer and that the frothable layer is securely attached to the solid metallic layer.

Abstract: Nanostructured non-stoichiometric materials are provided and electronic materials and their applications are discussed. More specifically, the uses of nanotechnology and nanostructured materials for electronic products.

Abstract: Novel non-ionics and energy device materials made from non-stoichiometric nanomaterials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel energy related products.

Abstract: Nanostructured non-stoichiometric materials are disclosed. Novel catalysts and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel catalysts for petrochemical, polymers, plastics, specialty chemicals, environmental and pharmaceutical applications.

Abstract: A boron containing ceramic-aluminum metal composite is formed by mixing a boron containing ceramic with a metal powder comprised of aluminum or alloy thereof, shaping the mixture into a porous preform, contacting the preform with an infiltrating metal comprised of aluminum or alloy thereof that melts at a lower temperature than the metal powder and heating to a temperature sufficient to melt the infiltrating metal, but insufficient to melt the metal powder, such that the infiltrating metal infiltrates the porous preform to form the composite. The composite that is formed may be used for vehicular parts.

Abstract: This invention relates to a method of manufacturing an improved ferritic or martensitic alloy based on iron and chromium strengthened by a dispersion of oxides, commonly called an Oxide Dispersion Strengthened or ODS alloy, and, more particularly to a method of manufacturing a ferritic or martensitic ODS alloy with large grains based on iron and chromium which has a single phase ferritic or martensitic matrix having an isotropic microstructure and a grain size that is sufficient to guarantee mechanical strength compatible with a use of this alloy at high temperature and/or under neutron irradiation. According to the invention, the method comprises slow cooling of an austenite at a cooling rate less than or equal to the critical cooling rate for transformation of this austenite into ferrite.

Abstract: An ingot is made from a used target of 30 weight % or more, and new metals of the same components, and recycled alloy powder is made by a gas atomizing process. Magnetic permeability is controlled not to exceed 2 by adjusting the content of rare earth metals in rare earth alloy powder to be at least 35 weight %. By blending the recycled alloy powder with other powder to produce alloy powder containing at least 50 weight % of rare earth alloy powder having a magnetic permeability not higher than 2 and containing at least 65 weight % of rare earth alloy powder. By sintering the alloy powder under pressure and thereafter cutting top, bottom and side surfaces of the sintered material, a target having a magnetic permeability not higher than 2 and having a thickness not less than 8 mm is fabricated.

Abstract: A valve seat made of an Fe-based sintered alloy excellent in wear resistance and having a reduced counterpart valve attack property is disclosed, which comprises a base comprising 15-40% by weight of Cu, 0.3-12% by weight of Ni and 0.0005-3.0% by weight of C, and further comprising 0.1-10% by weight of Co and 0.1-10% by weight of Cr when necessary, with the balance being Fe and inevitable impurities, the base having a structure which comprises an Fe-based alloy phase 1 composed of Fe as a main component combined by a Cu-based alloy phase 2 composed of Cu as a main component, wherein hard particles phase 3 having MHV of 500-1700 is dispersed in the base. The Fe-based alloy phase 1 is an Fe alloy phase which comprises Ni, Cu and C with Fe having more than 50% by weight, while the Cu-based alloy phase 2 is a Cu alloy phase which comprises Ni, Fe and C with Cu having more than 50% by weight.

Abstract: A process for producing a particle-reinforced titanium alloy includes the steps of: heating a titanium alloy in which ceramic particles having a thermodynamically stable property are dispersed in a temperature range of not less than &bgr;-transus temperature; and cooling the titanium alloy to pass through the &bgr;-transus temperature at a cooling rate of 0.1-30° C./second. The process can further include, before the heating step, the step of compressing the titanium alloy in a two phase temperature range of &agr;+&bgr; thereof or in a temperature range of not less than &bgr;-transus temperature.

Abstract: A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as ≦1% Cr, ≧0.05% Zr ≦2% Ti, ≦2% Mo, ≦1% Ni, ≦0.75% C, ≦0.1% B, ≦1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, and/or ≦3% Cu.

Abstract: A method of treating parts (34) in a treatment chamber (33) by hot-isostatic pressing with an inert gas as pressure medium and in the presence of a purifying agent (25a) for the inert gas comprises the steps of reducing the pressure in the treatment chamber (33), increasing the pressure again by introducing the inert gas, increasing the temperature in the treatment chamber (33) by activating heating elements (9a), and, after a certain holding time, reducing the pressure and the temperature again. Especially if the purifying agent (25a) is of the same material as the parts (34) being treated, the purifying effect of the purifying agent becomes insufficient. The effect of the purifying agent (25a) is improved according to the invention by bringing the inert gas, at least when being introduced, to circulate such that it is heated, passes through the purifying agent and is thereafter cooled before contacting the parts. The invention also relates to a device for carrying out the method.

Abstract: A method for creep cavity shrinkage and/or porosity reduction without applied stress. The thermal treatment is found to increase the rate of densification relative to isothermal annealing, allowing for more rapid recovery of desired theoretical density in a shorter time.

Abstract: A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. The method can include cold rolling an iron, nickel or titanium aluminide alloy and annealing the cold worked product in a furnace by infrared heating. The flash annealing is preferably carried out by rapidly heating the cold worked product to an elevated temperature for less than one minute. The flash annealing is effective to reduce surface hardness of the cold worked product sufficiently to allow further cold working. The product to be cold worked can be prepared by casting the alloy or by a powder metallurgical technique such as tape casting a mixture of metal powder and a binder, roll compacting a mixture of the powder and a binder or plasma spraying the powder onto a substrate.

Abstract: A process for altering surface properties of a mass of metal alloy solder comprising a first metal and a second metal. The process comprises exposing the mass to energized ions to preferentially sputter atoms of the first metal to form a surface layer ratio of first metal to second metal atoms that is less than the bulk ratio. The solder may be located on the surface of a substrate, wherein the process may further comprise masking the substrate to shield all but a selected area from the ion beam. The sputtering gas may comprises a reactive gas such as oxygen and the substrate may be an organic substrate. The process may further comprise simultaneously exposing the organic substrate to energized ions of the reactive gas to roughen the organic substrate surface.

Abstract: A method of imparting high strength, high ductility, and high fracture toughness to a refractory metal alloy workpiece includes: (i) subjecting the workpiece to at least one pass that reduces the initial cross-sectional area of said workpiece, (ii) annealing the workpiece subsequent to the at least one pass, and (iii) subjecting the workpiece to a final working step comprising at least one pass conducted at a temperature between ambient and 300.degree. C., the final working step further reducing the cross-sectional area of the workpiece such that the total reduction in the initial cross-sectional area of the workpiece is approximately 40%-75% and the final cold working is 0.30 to 0.75 of the total reduction in cross-sectional area. The resulting article has a tensile yield strength of approximately 170-200 Ksi, a tensile elongation of approximately 12%-17%, and a Charpy 10 mm Smooth Bar impact toughness of approximately 100 ft.-lb. to 240 ft.-lb.

Abstract: A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. The method can include cold rolling an iron, nickel or titanium aluminide alloy and annealing the cold worked product in a furnace by infrared heating. The flash annealing is preferably carried out by rapidly heating the cold worked product to an elevated temperature for less than one minute. The flash annealing is effective to reduce surface hardness of the cold worked product sufficiently to allow further cold working. The product to be cold worked can be prepared by casting the alloy or by a powder metallurgical technique such as tape casting a mixture of metal powder and a binder, roll compacting a mixture of the powder and a binder or plasma spraying the powder onto a substrate.