Abstract: An additive manufacturing method of producing a metal alloy article may involve: Providing a supply of a metal alloy in powder form; providing a supply of a nucleant material, the nucleant material lowering the nucleation energy required to crystallize the metal alloy; blending the supply of metal alloy powder and nucleant material to form a blended mixture; forming the blended mixture into a first layer; subjecting at least a portion of the first layer to energy sufficient to raise the temperature of the first layer to at least the liquidus temperature of the metal alloy; allowing at least a portion of the first layer to cool to a temperature sufficient to allow the metal alloy to recrystallize; forming a second layer of the blended mixture on the first layer; and repeating the subjecting and allowing steps on the second layer to form an additional portion of the metal alloy article.

Abstract: The invention relates to the field of aluminum metallurgy and can be used to produce ingots from high quality aluminum alloys when manufacturing aerospace and automotive products. The use of this invention relates to the technology of secondary modification. The method of casting products from aluminum alloys includes the following stages: a) aluminum melt preparation in the alloying furnace; b) addition alloy introduction into melt; c) degassing of the aluminum melt containing the addition alloy; d) addition alloy re-introduction; e) filtration of the aluminum melt obtained at stage d) and f) feeding the filtered melt into the crystallizer. It ensures the improved effectiveness of the aluminum melt modification with addition alloys without additional constructional changes in existing lines for aluminum ingot casting. It allows reducing the alloy modification costs, decreasing the grain in resulting alloys and improving plastic and mechanical properties of the obtained cast ingots and their products.

Abstract: Surface micro-texturing has been proven an effective way to reduce friction and wear for tribological applications. There is provided a low cost hot sintering method to apply micro-texturing on an advanced bearing polymer material. First, one face of the mold was micro-textured using a micro-casting method. Second, the cured Aromatic Thermosetting coPolyester (ATSP) powder was filled in the mold. Next, the filled mold was placed in a hot press for a hot sintering process. Finally, the textured bulk ATSP was cooled. The micro-textured ATSP bulk material was machined and compared with plain untextured material. The micro-textured material could effectively reduce friction at speeds lower than 2.46 m/s: 14% reduction in average.

Abstract: The invention relates to a method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining, and belongs to the technical field of titanium-aluminum alloys. The method comprises the following steps of pre-treating raw materials, weighing the raw materials in the mass ratio of rutile or high-titanium slags or titanium dioxide to aluminum powder to V2O5 powder to CaO to KClO3 being 1.0:(0.60-0.24):(0.042-0.048):(0.12-0.26):(0.22-0.30), performing an aluminothermic self-propagating reaction in a gradient feeding manner to obtain high-temperature melt, performing a gradient reduction melting, performing heat insulation and separating the melt after the feeding is completed, then adding CaF2—CaO—TiO2—V2O5 based refining slags into the high-temperature melt, performing slag washing refining, and finally removing slags to obtain titanium alloys.

Abstract: A conductor for a power transmission cable including at least two separate lengths of conductors, having at least 99.5% by weight aluminum, and the remainder other metals or substances except a titanium content of at most 0.02% by weight. The at least two lengths of aluminum conductors joined together by a weld. The welding material alloy has an aluminum content of at least 85.2% by weight, a silicon content of from 4.0 to 13.0% by weight and the remainder up to 100% by weight and at most 1.8% by weight, other metals and/or substances; or an aluminum content of at least 99.5% by weight, a titanium content of from 0.10 to 0.50% by weight and the remainder up to 100% by weight, other metals and/or substances.

Abstract: This invention relates to nonferrous metallurgy, namely to manufacture of near-beta titanium alloys containing titanium and such alloying elements as molybdenum, vanadium, chromium, zirconium, iron and aluminum. The provided alloy contains the following components, in weight percentages: molybdenum—25 to 27; vanadium—25 to 27; chromium—14 to 16; titanium—9 to 11; with balance aluminum and iron and zirconium in the form of commercially pure metals. The technical result of this invention is capability to produce a near-beta titanium alloy with high chemical homogeneity alloyed by refractory elements and having aluminum content ?6 wt %, wherein the alloy is characterized by a combination of stable high strength and high impact strength.

Abstract: Disclosed is an aluminum alloy, which is made of a composition including about 0.7˜7.5 wt % of Ti, about 0.2˜1.5 wt % of B and a residue of Al as a main component, wherein the aluminum alloy is formed by melting the composition at about 950˜1000° C.

Abstract: A Pt—Al—Hf/Zr aluminide coating that can be used as a bond coat for TBC and improve TBC spallation life in service at elevated temperatures is provided. The aluminide coating can include a metastable ternary or higher X—Pt/Pd—Ni phase where the phase and other elements in the alloy system are present in a NiAl ? phase of the coating. The metastable phase can be present and observable in the as-deposited condition of the bond coating; e.g. in an as-CVD deposited condition of the bond coating.

Abstract: The present invention discloses a method for producing an aluminum-zirconium-titanium-carbon (Al—Zr—Ti—C) intermediate alloy; the Al—Zr—Ti—C intermediate alloy comprises 0.01% to 10% Zr, 0.01% to 10% Ti, 0.01% to 0.3% C, and Al in balance; the producing method comprising the steps of: preparing commercially pure aluminum, zirconium, titanium, and graphite material according to the weight percentages of the aluminum-zirconium-titanium-carbon intermediate alloy; the graphite powder is subjected to the following treatments: being added to the aqueous solution of KF, NaF, K2ZrF6, K2TiF6 or the combination thereof, soaked for 12 to 72 hours, filtrated or centrifuged, and dried at 80° C. to 200° C. for 12 to 24 hours; melting the commercially pure aluminum and keeping it at 700° C. to 900° C. to provide aluminum liquid, in which the prepared zirconium, the titanium and the treated graphite powder are added and melted to provide an alloy solution; and keeping the alloys solution at 700° C. to 900° C.

Abstract: Provided is an Al alloy film for display devices, which has excellent heat resistance under high temperatures, low electric resistance (wiring resistance), and excellent corrosion resistance under alkaline environments. The present invention relates to an Al alloy film containing Ge (0.01-2.0 at. %) and a group X element (Ta, Ti, Zr, Hf, W, Cr, Nb, Mo, Ir, Pt, Re, and/or Os), wherein, with regard to precipitates each containing Al, the group X element and Ge generated when a heat treatment at 450 to 600° C. is carried out, the density of some of the precipitates which have equivalent circle diameters of 50 nm or more is controlled.

Abstract: The present invention discloses a method for producing an aluminum-zirconium-carbon (Al—Zr—C) intermediate alloy; the Al—Zr—C intermediate alloy has a chemical composition of 0.01% to 10% Zr, 0.01% to 0.3% C, and Al in balance; the producing method comprising the steps of: producing commercially pure aluminum, zirconium metal, and graphite material according to the weight percentages of the aluminum-zirconium-carbon intermediate alloy; the graphite is graphite powder having an average particle size of 0.074 mm to 1 mm; and the graphite powder is subjected to the following treatments: being added to the aqueous solution of KF, NaF, K2ZrF6, K2TiF6 or the combination thereof, soaked for 12 to 72 hours, filtrated or centrifuged, and dried at 80° C. to 200° C. for 12 to 24 hours; melting the commercially pure aluminum and keeping it at 700° C. to 900° C.

Abstract: A transition element-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-transition element melt in which a transition element content of the aluminum-transition element melt is less than 6 percent by weight. The aluminum-transition element melt then powderized to form a transition element-doped aluminum powder metal. The powderization may occur by, for example, air atomization.

Abstract: An aluminum alloy including additions of scandium, zirconium, erbium and, optionally, silicon.

Abstract: A zirconium-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight. The aluminum-zirconium melt then powderized to form a zirconium-doped aluminum powder metal. The powderization may occur by, for example, air atomization.

Abstract: A titanium aluminide application process and article with a titanium aluminide surface are disclosed. The process includes cold spraying titanium aluminide onto an article within a treatment region to form a titanium aluminide surface. The titanium aluminide surface includes a refined gamma/alpha2 structure and/or the titanium aluminide is cold sprayed from a solid feedstock of a pre-alloyed powder.

Abstract: The present invention provides an Al alloy film that, in a production step of a thin-film transistor substrate, reflective film, reflective anode, touch panel sensor, or the like, can effectively prevent corrosion such as pinhole corrosion (black dots) or corrosion of the Al alloy surface when immersed in a sodium chloride solution, has superior corrosion resistance, is able to suppress hillock formation, and has superior heat resistance. The Al alloy thin film is used as a reflective film or a wiring film on a substrate, and contains 0.01-0.5 at % of Ta and/or Ti and 0.05-2.0 at % of a rare earth element.

Abstract: A process for fabricating sintered, substantially pore-free titanium aluminide articles with minor alloying element additions is disclosed. Such articles may find application as automobile engine valves and connecting rods and may be fabricated by rapidly sintering intimately mixed powders of substantially pure titanium and rapidly-cooled particles of aluminum alloyed with the minor alloying element(s).

Abstract: A titanium aluminide application process and article with a titanium aluminide surface are disclosed. The process includes cold spraying titanium aluminide onto an article within a treatment region to form a titanium aluminide surface. The titanium aluminide surface includes a refined gamma/alpha2 structure and/or the titanium aluminide is cold sprayed from a solid feedstock of a pre-alloyed powder.

Abstract: An aluminum-based bearing alloy material and a bearing made therefrom is described, the bearing material having a composition comprising in weight %: 5-10 tin; 0.8-1.3 copper; 0.8-1.3 nickel; 1.5-3 silicon; 0.13-0.19 vanadium; 0.8-1.2 manganese; 0.4-0.6 chromium; balance aluminum apart from incidental impurities.

Abstract: The present invention pertains to the field of metal alloy, and discloses an aluminum-zirconium-titanium-carbon grain refiner for magnesium and magnesium alloys, having a chemical composition of: 0.01%˜10% Zr, 0.01%˜10% Ti, 0.01%˜0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an Al—Zr—Ti—C intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Abstract: The present invention pertains to the field of metal alloy, and relates a grain refiner for magnesium and magnesium alloys, which is an aluminum-zirconium-carbon (Al—Zr—C) intermediate alloy, having a chemical composition of: 0.01%˜10% Zr, 0.01%˜0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Abstract: Provided is an Al-based alloy reflective film which reduces noise on an optical information recording medium by having a reflective film surface accurately reproduce grooves, pits and the like formed on a substrate, and has high reflectivity. A sputtering target which is effective for forming such a reflective film is also provided. The reflective film to be used for the optical information recording medium is substantially composed of an Al-based alloy containing 2.0-15.0 atm % of a rare-earth element, and has a crystallite size of 30 nm or smaller in the thickness direction of the reflective film.

Abstract: A method and apparatus produces high strength aluminum alloy parts from a powder containing L12 intermetallic dispersoids. The powder is degassed, sealed under vacuum in a container, heated, consolidated into billet form by vacuum hot pressing. The billet is then shaped into a ring preform by extrusion, forging or rolling. The preform is then ring rolled to form a useful part.

Abstract: A method for producing a high strength aluminum alloy brackets, cases, tubes, ducts, beams, spars and other parts containing L12 dispersoids from an aluminum alloy powder containing the L12 dispersoids. The powder is consolidated into a billet having a density of about 100 percent. The billet is extruded using an extrusion die shaped to produce the component.

Abstract: A method and apparatus produces high strength aluminum alloys from a powder containing L12 intermetallic dispersoids. The powder is degassed, sealed under vacuum in a container, consolidated by vacuum hot pressing, and extruded into useful shapes.

Abstract: A method for producing high strength L12 aluminum alloy armor plate by using gas atomization to produce powder that is then consolidated into L12 aluminum alloy billets before it is forged or rolled into plate form.

Abstract: A method for producing high strength aluminum alloy consolidated billets containing L12 dispersoids by Ceracon forging is disclosed. The method comprises forming an aluminum alloy powder compact preform containing L12 dispersoid forming elements therein and encompassing the preform in a flowable pressure transmitting medium in a die in a hydraulic press. The die, pressure transmitting medium and preform are then heated and the preform is forged by applying pressure to the pressure transmitting medium by the ram of the hydraulic press. The unequal axial and radial strain resulting from this type of forging results in improved mechanical properties of L12 aluminum alloys.

Abstract: A polycrystalline aluminum thin film is made of polycrystals of an alloy of aluminum. The polycrystalline aluminum thin film includes a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain.

Abstract: There are provided an aluminum-alloy reflection film for optical information-recording, having low thermal conductivity, low melting temperature, and high corrosion resistance, capable of coping with laser marking, an optical information-recording medium comprising the reflection film described, and an aluminum-alloy sputtering target for formation of the reflection film described. The invention includes (1) an aluminum-alloy reflection film for optical information-recording, containing an element Al as the main constituent, 1.0 to 10.0 at. % of at least one element selected from the group of rare earth elements, and 0.5 to 5.0 at. % of at least one element selected from the group consisting of elements Cr, Ta, Ti, Mo, V, W, Zr, Hf, Nb, and Ni, (2) an optical information-recording medium comprising any of the aluminum-alloy reflection films described as above, and (3) a sputtering target having the same composition as that for any of the aluminum-alloy reflection films described as above.

Abstract: A sputtering target for optical media is mainly composed of Al and contains 1 to 10 at % of one or two species of elements selected from the group consisting of Ta and Nb and 0.1 to 10 at % of Ag. An optical medium 100 comprises a substrate 10 and reflective layers 20A, 20B provided on the substrate 10. Each of the reflective layers 20A, 20B has a composition, mainly composed of Al, containing 1 to 10 at % of one or two species of elements selected from the group consisting of Ta and Nb and 0.1 to 10 at % of Ag.

Abstract: An aluminum alloy comprising Al, Sc, Gd, Zr, and optionally Mg. The aluminum alloy is strengthened by an aluminum solid solution matrix and a dispersion of Al3X precipitate having an L12 structure where X comprises Sc, Gd and Zr. Mg is a preferred addition to the alloy containing Gd and Zr. The alloying additions control strengthening and coarsening kinetics of the alloy through control of diffusivity in the aluminum matrix and coherency strain of the Al3X precipitate.

Abstract: A two or three phase aluminum alloy having high strength, modulus, ductility and toughness, comprising a fine grain matrix phase nano L12 alloy having a particle size ranging from about 20 nm to 5 microns and a more ductile larger aluminum alloy coarse grain phase having a particle size ranging from about 25 to 250 microns. The fine grain matrix phase alloy comprises aluminum, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium. The alloy may also include ceramic reinforcements in addition to the fine grain matrix phase and the coarse grain phase.

Abstract: The present invention has been made by the fact that the wettability with lubricant increases when tin grains are broken within a certain range. In an aluminum-based bearing alloy containing from 2 to 20 mass % of tin, the tin grains in a sliding surface have a size not less than 20 ?m2 but not more than 50 ?m2 expressed in region partitioned areas of the tin grains measured in accordance with a region partitioning method.

Abstract: The invention relates to an aluminium alloy used as a coating for surfaces subjected to extreme friction stress, with an aluminium matrix incorporating at least a soft phase and a hard phase, as well as a process for producing the coating. The soft phase and/or the hard phase is essentially finely distributed in the aluminium matrix (20) and at least 80%, preferably at least 90%, of the soft phase or soft phase particles (18) have a mean diameter of a maximum of 3 ?m. The aluminium alloy is produced by depositing it on the base (11) by a process of deposition from a gas phase.

Abstract: The present invention relates to modified alloy compositions for reduced hot tear susceptibility, the aluminum alloy comprising from 0.01 to 0.025% by weight of Sr; and TiB2, measured by its boron content, from 0.001 to 0.005% by weight of B. The invention also relates to a method of preventing or eliminating hot tears in an aluminum alloy comprising the step of combining with aluminum: from 0.01 to 0.025% by weight of Sr; and TiB2, measured by its boron content, from 0.001 to 0.005% by weight of B.

Abstract: Aluminum alloys having improved strength at 300° C. characterized by formation from an intermediate amorphous state to a final fcc matrix hardened by optimal 25 nm-diameter Ll2 precipitates with an interphase misfit less than about 4% in all three dimensions and Al23Ni6M4 precipitates where M is one or more elements selected from the group consisting of Y and Yb. An appropriate melt of aluminum with selected transition metals (Co, Cu, Fe, Ni, Ti, Y) and Ll2 stabilizers (Sc, Yb) in amounts of about 2 to 12 and 2 to 15 atomic percent, respectively, is processed to achieve an intermediate amorphous state to dissolve Ll2-forming components. The amorphous alloys are then thermo-mechanically devitrified to a final crystalline microstructure. The alloys have good ductility and a short-term tensile strength exceeding about 275 MPa (40 ksi) at 300° C., and are useful for applications such as high-temperature turbine engine components or aircraft structural components.

Abstract: A method is described for improving neutron absorption in aluminum-based cast composite material, which comprises preparing a molten composite from an aluminum alloy matrix and aluminum-boron intermetallics containing relatively large boron-containing particles, and either (a) heating the composite and holding for a time sufficient to partially dissolve the boron-containing particles and then adding titanium to form fine titanium diboride particles, and casting the composite, or (b) adding gadolinium or samarium to the molten composite or to the aluminum alloy matrix and casting the composite to precipitate fine particles of Gd—Al or Sm—Al within the cast composite, said fine particles filling gaps around the large boron-containing particles with neutron absorbing material.

Abstract: New alloys for potential use in applications such as in lower wing skins and fuselage skins are disclosed. Specifically, Mn-free 2×24 alloys potentially suitable for thick plate and thin plate and sheet applications are believed to be novel and to provide unexpectedly superior properties.

Abstract: A liquid reactant metal alloy includes at least one chemically active metal for reacting with non-radioactive material in a mixed waste stream being treated. The reactant alloy also includes at least one radiation absorbing metal. Radioactive isotopes in the waste stream alloy with, or disperse in, the chemically active and radiation absorbing metals such that the radiation absorbing metals are able to absorb a significant portion of the radioactive emissions associated with the isotopes. Non-radioactive constituents in the waste material are broken down into harmless and useful constituents, leaving the alloyed radioactive isotopes in the liquid reactant alloy. The reactant alloy may then be cooled to form one or more ingots in which the radioactive isotopes are effectively isolated and surrounded by the radiation absorbing metals. These ingots comprise the storage products for the radioactive isotopes. The ingots may be encapsulated in one or more layers of radiation absorbing material and then stored.

Abstract: An anodization-adapted aluminum alloy containing 2.0 to 3.5 wt % Mg and the remainder of 99.9 wt % or greater high-purity aluminum.

Abstract: Aluminum alloy products, such as plate, forgings and extrusions, suitable for use in making aerospace structural components like integral wing spars, ribs and webs, comprises about: 6 to 10 wt. % Zn; 1.2 to 1.9 wt. % Mg; 1.2 to 2.2 wt. % Cu, with Mg?(Cu+0.3); and 0.05 to 0.4 wt. % Zr, the balance Al, incidental elements and impurities. Preferably, the alloy contains about 6.9 to 8.5 wt. % Zn; 1.2 to 1.7 wt. % Mg; 1.3 to 2 wt. % Cu. This alloy provides improved combinations of strength and fracture toughness in thick gauges. When artificially aged per the three stage method of preferred embodiments, this alloy also achieves superior SCC performance, including under seacoast conditions.

Abstract: A sputtering target consists essentially of 0.1 to 50% by weight of at least one kind of element that forms an intermetallic compound with Al, and the balance of Al. The element that forms an intermetallic compound with Al is uniformly dispersed in the target texture, and in a mapping of EPMA analysis, a portion of which count number of detection sensitivity of the element is 22 or more is less than 60% by area ratio in a measurement area of 20×20 ?m. According to such a sputtering target, even when a sputtering method such as long throw sputtering or reflow sputtering is applied, giant dusts or large concavities can be suppressed in occurrence.

Abstract: A method for protecting an article from a high temperature, oxidative environment is presented, along with alloy compositions and ion plasma deposition targets suitable for use in the method. The method comprises providing a substrate, providing an ion plasma deposition target, and depositing a protective coating onto the substrate using the target in an ion plasma deposition process. The target comprises from about 2 atom percent to about 25 atom percent chromium, and the balance comprises aluminum.

Abstract: A hard film is formed of a material having composition indicated by a chemical formula: (TiaAlbVcSidBf) (C1−eNe), in which subscripts a, b, c, d, f and e indicate atomic ratios of Ti, Al, V, Si, B and N, respectively, and meet relational expressions: 0.02≦a≦0.5, 0.4<b≦0.8, 0.05<c, 0≦d≦0.5, 0≦f≦0.1, 0.01≦d+f≦0.5, 0.5≦e≦1 and a+b+c+d=1. The hard film is harder than and more excellent in wear resistance than TiAlN films and conventional (TiAlV) (CN) films.

Abstract: A turbine component comprises a substrate; and a crystalline coating disposed on a surface of the substrate, wherein the crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating. A method of making a turbine component comprises disposing a coating composition on a substrate, wherein the coating composition comprises tin and yttrium in an amount greater than or equal to about 0.1 atomic percent based upon the total coating composition. A crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating.

Abstract: A sputtering target consists essentially of 0.1 to 50% by weight of at least one kind of element that forms an intermetallic compound with Al, and the balance of Al. The element that forms an intermetallic compound with Al is uniformly dispersed in the target texture, and in a mapping of EPMA analysis, a portion of which count number of detection sensitivity of the element is 22 or more is less than 60% by area ratio in a measurement area of 20×20 &mgr;m. According to such a sputtering target, even when a sputtering method such as long throw sputtering or reflow sputtering is applied, giant dusts or large concavities can be suppressed in occurrence.

Abstract: A sputtering target consists essentially of 0.1 to 50% by weight of at least one kind of element that forms an intermetallic compound with Al, and the balance of Al. The element that forms an intermetallic compound with Al is uniformly dispersed in the target texture, and in a mapping of EPMA analysis, a portion of which count number of detection sensitivity of the element is 22 or more is less than 60% by area ratio in a measurement area of 20×20 &mgr;m. According to such a sputtering target, even when a sputtering method such as long throw sputtering or reflow sputtering is applied, giant dusts or large concavities can be suppressed in occurrence.

Abstract: Hydrogen storage compositions which liberate hydrogen readily and which are readily regenerated from a dehydrogenated state formed by liberation of hydrogen are derived from an AlH3-based complex hydride incorporating a member selected from a metalloid such as B, C, Si, P and S, a metal such as Cr, Mn, Fe, Co, Ni, Cu, Mo, Zn, Ga, In and Sn, a metal which forms a stable hydride such as Be, Mg, Ca, Ti, V, Y, Zr and La and a second AlH3-based complex hydride.

Abstract: A novel method for producing a ceramic phase particle dispersoid in metal and a novel product composed thereof. The method includes (a) providing a molten composition consisting essentially of molten aluminum alloy containing molten metal selected form the group consisting of Zr, V and combinations thereof; (b) providing a chloride salt containing fine carbon particles; and (c) reacting the chloride salt containing fine carbon particles in the molten aluminum metal liquid with the molten metal liquid to form a uniform distribution of finely sized carbide particles formed and dispersed in-situ in an aluminum alloy matrix.

Abstract: A method for mixing an in-situ aluminum matrix composite with an aluminum-litium alloy via the spray deposition process to obtain an Al—Li composite.