Abstract: A free-machinable hyper-eutectic Al—Si alloy includes 3.0-5.0 wt % Cu, 13-17 wt % Si, 0.2-0.5 wt % Fe, 2.5-6.0 wt % Bi, 0.005-0.02 wt % P, up to 0.1 wt % Mg, up to 0.1 wt % Ni, up to 0.5 wt% Mn and up to 0.5 wt % total sum of other elements, with the balance of the alloy being Al. The hyper-eutectic Al—Si alloy is advantageous in light of excellent machinability, easy cutting operation, extended lifetime of cutting tools and improved smoothness of cutting faces. In addition, the alloy has excellent elongation ratio and abrasion resistance, while maintaining mechanical properties such as rupture strength, tensile strength, yield strength and hardness which are similar to conventional A390 alloy, and thus can be applied to abrasion resistance-requiring applications, for example, swash plates of compressors for automotive air conditioners, without any surface treatment including anodizing or Sn plating.

Abstract: The present invention provides an aluminum alloy support body for a presensitized plate in which the uniformity of the grained surface due to electrochemical etching is further improved, and a method of producing the same. The aluminum alloy support body for the presensitized plate according to the present invention has a composition comprising 0.1 to 0.7% by weight of Fe; 0.01 to 0.2% by weight of Si; 0.005 to 1.0% by weight of one or more rare earth elements; and the balance of Al and unavoidable impurities. In the present invention, the aluminum alloy support body may further contain 0.005 to 0.1% by weight of Ni and 0.005 to 0.3% by weight of one or more rare earth elements. One or more elements of Ce, La and Nd can be selected as the rare earth elements.

Abstract: The invention relates to an aluminium brazing alloy, ideally suitable as fin stock material, having the composition, in weight %: Si 0.4-1.0, Mn 0.7-1.2, Mg up to 0.10, Fe up to 0.8, Zn up to 3.0, Ni 0.5-0.9, Cu up to 0.15, optionally one or more selected from the group consisting of Ti up to 0.20, In up to 0.20, Zr up to 0.25, V up to 0.25 and Cr up to 0.25, other elements up to 0.05 each, up to 0.15 in total, Al balance.

Abstract: A corrosion resistant aluminum alloy has controlled amounts of iron, manganese, chromium, and titanium along with levels of copper, silicon, nickel, and no more than impurity levels of zinc. The alloy chemistry is tailored such that the electrolytic potential of the grain boundaries matches the alloy matrix material to reduce intergranular corrosion. The alloy is particularly suited for the manufacture of tubing for heat exchangers using extrusion and brazing techniques.

Abstract: The invention relates to an aluminium alloy, in particular for a layer of a friction bearing, for example, which, apart from aluminium and smelt-related impurities, additionally contains soft-phase formers, e.g. Sn, Pb, Bi, Sb or similar. The alloy contains added quantities of at least one element from the group of elements consisting of Sc, Y, Hf, Nb, Ta, La, lanthanides and actinides in a maximum of 10% by weight, preferably 4% by weight, in particular between 0.015% by weight and 3.25% by weight, relative to 100% by weight of alloy, the remainder being aluminium with smelt-related impurities.

Abstract: An aluminum-based die casting alloy exhibiting improved corrosion resistance and good die-castability contains from about 4.5 to about 12 percent silicon by weight, at least 87 percent aluminum by weight, from about 0.25 percent to about 0.6 percent manganese by weight, and a maximum of 0.2 percent copper by weight. The alloys preferably contain iron in an amount sufficient to improve hot tear resistance and to decrease the tendency for die sticking or soldering during die casting.

Abstract: An aluminum alloy piping material for automotive piping excelling in corrosion resistance and workability and a method of fabricating the same. The aluminum alloy piping material comprises an aluminum alloy which comprises 0.3-1.5% of Mn, 0.01-0.20% of Fe, and 0.01-0.20% of Si, wherein the content of Cu as impurities is limited to 0.05% or less, with the balance consisting of Al and impurities, wherein, among Si compounds, Fe compounds, and Mn compounds present in the alloy matrix, the number of compounds with a particle diameter (equivalent circle diameter, hereinafter the same) of 0.5 &mgr;m or more is 3×104 or less per mm2. The aluminum alloy piping material has a tensile strength of 70-130 MPa (temper: O material). An ingot of an aluminum alloy having the composition is hot extruded. The resulting extruded pipe is cold drawn at a working ratio of 30% or more and annealed.

Abstract: A low creep electrical conducting aluminum cable wire alloy is provided. The wire alloy has about 0.07 to about 0.12 weight percent iron, about 0.04 to about 0.07 weight percent silicon, about 0.03 to about 0.08 weight percent zirconium, and a balance weight percent of aluminum.

Abstract: An aluminum alloy article containing the alloying amounts of iron, silicon, manganese, titanium, and zinc has controlled levels of iron and manganese to produce an alloy article that combines excellent corrosion resistant with good formability. The alloy article composition employs a controlled ratio of manganese to iron and controlled total amounts of iron and manganese to form intermetallic compounds in the final alloy article. The electrolytic potential of the intermetallic compounds match the aluminum matrix of the article to minimize corrosion. The levels of iron and manganese are controlled so that the intermetallic compounds are present in a volume fraction that allows the alloy article to be easily formed. The aluminum alloy composition is especially adapted for extrusion processes, and tubing that are used in heat exchanger applications.

Abstract: Disclosed is an Al alloy for a welded construction having excellent welding characteristics, which Al alloy comprises 1.5 to 5 wt % of Si (hereinafter, wt % is referred to as %), 0.2 to 1.5% of Mg, 0.2 to 1.5% of Zn, 0.2 to 2% of Cu, 0.1 to 1.5% of Fe, and at least one member selected from the group consisting of 0.01 to 1.0% of Mn, 0.01 to 0.2% of Cr, 0.01 to 0.2% of Ti, 0.01 to 0.2% of Zr, and 0.01 to 0.2% of V, with the balance being Al and inevitable impurities. Also disclosed is a welded joint having this Al alloy base metal welded with an Al—Mg- or Al—Si-series filler metal.

Abstract: An aluminum-based die casting alloy exhibiting improved corrosion resistance and good die-castability contains from about 4.5 to about 12 percent silicon by weight, at least 87 percent aluminum by weight, and a maximum of 0.2 percent copper by weight. The alloys preferably contain iron in an amount sufficient to improve hot tear resistance and to decrease the tendency for die sticking or soldering during die casting.

Abstract: An aluminum alloy containing (in wt. %): 0.2-0.5 Fe; 0.7-1.2 Si; 1.2-1.6 Mn; up to 0.3 Mg; up to 0.5 Cu; up to 0.2 Zn; up to 0.1 Ti is used to make the fins of heat exchangers particularly car radiators. The finstock has high post braze strength and thermal conductivity, and has a sufficiently electronegative potential as to be capable of acting as a sacrificial anode for the heat exchanger tubes. By virtue of the absence of Sn, In, and Cr, these heat exchangers can be scrapped and melted for re-use.

Abstract: An aluminum alloy piping material exhibiting good corrosion resistance and excelling in workability such as bulge formation capability at the pipe ends. The aluminum alloy piping material is suitably used for pipes connecting automotive radiators and heaters or pipes connecting evaporators, condensers, and compressors. The aluminum alloy material comprises an aluminum alloy which comprises 0.3-1.5% of Mn, 0.20% or less of Cu, 0.06-0.30% of Ti, 0.01-0.20% of Fe, and 0.01-0.20% of Si, with the balance consisting of Al and impurities, wherein, among Si compounds, Fe compounds, and Mn compounds present in the matrix, the number of compounds with a particle diameter of 0.5 &mgr;m or more is 2×104 or less per mm2. The aluminum alloy piping material may further comprise 0.4% or less of Mg.

Abstract: The invention relates to a brazing sheet product comprising a core sheet made of an aluminum alloy, an aluminum clad layer cladding at least one of the surfaces of said core sheet, and a layer comprising nickel on the outersurface of one or both said clad layer or layers, and wherein the brazing sheet product is devoid of a layer comprising zinc or tin as a bonding layer between said outersurface of said aluminum clad layer or layers and said layer comprising nickel, and wherein the aluminum clad alloy layer comprises, in weight percent: Si 2 to 18, Mg up to 8.0, Zn up to 5.0, Cu up to 5.0, Mn up to 0.30, In up to 0.30, Fe up to 0.80, Sr up to 0.20, at least one element selected from the group consisting of: (Bi 0.01 to 1.0, Pb 0.01 to 1.0, Li 0.01 to 1.0, Sb 0.01 to 1.0), impurities each up to 0.05, total up to 0.20, balance aluminum.

Abstract: An aluminum bearing alloy includes, by mass, 3 to 40% Sn, 0.5 to 7% Si, 0.05 to 2% Fe, balance of Al, and unavoidable impurities. In the alloy, a ternary-element intermetallic compound of Al—Si—Fe and Si particles are contained as hard particles.

Abstract: The invention relates to a recyclable aluminum foil. The foil is made of an alloy containing 0.2%-0.5% Si, 0.4%-0.8% Fe, 0.1%-0.3% Cu, and 0.05%-0.3% Mn by weight. with the balance aluminum and incidental impurities. The foil contains at least about 2% by weight of strengthening particulates and has at least about 0.1% by weight of the copper and/or manganese retained in solid solution. The invention also relates to a method of manufacturing a sheet of aluminum based on an alloy which involves continuously casting an alloy of the above composition to form a sheet of alloy, coiling said sheet of alloy, cold rolling the sheet of alloy, interannealing the alloy after a first pass of the cold rolling; and further cold rolling the alloy to a final desired gauge. The foil, which is suitable for household use, has improved strength due to a larger quantity of dispersoids fortified by elements in solid solution, and can be recycled with other alloy scrap.

Abstract: The present invention provides an aluminum alloy support body for a presensitized plate in which the uniformity of the grained surface due to electrochemical etching is further improved, and a method of producing the same. The aluminum alloy support body for the presensitized plate according to the present invention has a composition comprising 0.1 to 0.7% by weight of Fe; 0.01 to 0.2% by weight of Si; 0.005 to 1.0% by weight of one or more rare earth elements; and the balance of Al and unavoidable impurities. In the present invention, the aluminum alloy support body may further contain 0.005 to 0.1% by weight of Ni and 0.005 to 0.3% by weight of one or more rare earth elements. One or more elements of Ce, La and Nd can be selected as the rare earth elements.

Abstract: The invention provides a new and improved process and exothermic reaction mixture for producing molten weld metal. The molten weld metal is used in joining one metallic piece with at least one other metallic piece. The process and exothermic reaction mixture have distinct advantages over the prior art. These advantages include a higher filler metal yield, an increased tensile strength, and a higher quality corrosion resistant weld. These advantages are accomplished by a process wherein a reactant mixture is provided which has a reducing agent, a metallic compound, and at least two filler metals that at least in part do not chemically react with the metallic compound, one of which is aluminum. The metallic compound subsequently forms, with the reducing agent, having a high heat of formation which provides an exothermic reaction with sufficient heat to melt the filler metals.

Abstract: A corrosion resistant aluminum alloy has controlled amounts of iron, manganese, chromium, and titanium along with levels of copper, silicon, nickel, and no more than impurity levels of zinc. The alloy chemistry is tailored such that the electrolytic potential of the grain boundaries matches the alloy matrix material to reduce intergranular corrosion. The alloy is particularly suited for the manufacture of tubing for heat exchangers using extrusion and brazing techniques.

Abstract: A master alloy for modification and grain refining of hypoeutectic and eutectic Al-Si based foundry alloys is described. In addition to unavoidable contaminants the alloy contains nucleating and modifying additions of Ti, B and Sr, wherein the content of Ti is between 0,5 and 2,0 % by weight, the content of B is between 0,5 and 2,0 % by weight and the content of Sr is between 3,0 and 12,0 % by weight, with the ratio Ti/B between 0,8 and 1,4. A method for the preparation of said master alloy is also described.

Abstract: The stability under load and deformability of an aluminum-based sliding bearing material with 10-25 mass 6 tin are improved in that the aluminum alloy is composed of tin with the admixture of silicon and manganese, the remainder being aluminum, in that the proportions of manganese and silicon amount each to 0.2-2 mass %, and in that the ratio of the percentage by mass of manganese to the percentage by mass of silicon lies between 0.6 and 1.5.

Abstract: Aluminum alloy products are described which combine both good strength and resistance to pitting corrosion. They are extruded from an aluminum alloy of the AA1000, AA3000 or AA8000 series containing about 0.001 to 0.3% zinc and about 0.001 to 0.03% titanium. The alloy may also contain 0.001 to 0.5% manganese and about 0.03 to 0.4% silicon. These products are particularly useful in the production of extruded products, such as heat exchanger tubing.

Abstract: The invention provides an aluminum alloy having a homogenous distribution of bismuth therein comprising at least 5 wt/wt % bismuth, wherein about 3.5 wt/wt % of the bismuth is distributed in the form of very small particles of up to 5 microns diameter and at least 2 wt/wt % of the bismuth is distributed in the form of spherical particles of about 10 to 40 microns in diameter and the very small particles and the spherical particles are homogenously distributed throughout the aluminum matrix.

Abstract: The present invention is a method for producing an iron-containing hypoeutectic alloy free from primary platelet-shaped beta-phase of the Al5FeSi in the solidified structure by the steps (a) providing an iron-containing aluminum alloy having a composition within the following limits, in weight percent, 6-10% Si, 0.05-1.0% Mn, 0.4-2% Fe, at least one of 1) 0.01-0.8% Ti and/or Zr 2) 0.005-0.5% Sr and/or Na and/or Ba, 0-6.0% Cu, 0-2.0% Cr, 0-2.0% Mg, 0-6.0% Zn, 0-0.

Abstract: This invention relates to a eutectic or hypereutectic aluminium-silicon alloy product suitable for thixoforming, comprising (by weight) 10 to 30% silicon and, if applicable, copper (<10%), magnesium (<3%), manganese (<2%), iron (<2%), nickel (<4%), cobalt (<3%) and other elements (<0.5% each and 1% in total), the microstructure of which is composed of primary silicon crystals, equiaxed type aluminium dendrites less than 4 mm in size and a eutectic composed of eutectic silicon grains and eutectic aluminium grains less than 4 mm in size.

Abstract: A support for a lithographic printing plate in which uniform pits are efficiently formed by electrochemically graining treatment, always independently of electrolytic conditions to give excellent printing performance, which comprises an aluminum alloy plate containing 0.05% to 0.5% by weight of Fe, 0.03% to 0.15% of Si, 0.006% to 0.03% by weight of Cu and 0.010% to 0.040% by weight of Ti, wherein the Cu concentration of a surface layer portion of from a surface to a depth of 2 &mgr;m of the aluminum alloy plate is at least 20 ppm higher than that of a region deeper than the surface layer portion.

Abstract: The present invention provides a thixoformable Al alloy composites wherein Si is added to ASTM 2000 series aluminum alloy so that the total Si content thereof may be 1-5 at. % and also a manufacturing method of thixoformable Al alloy composites comprising: obtaining a matrix of the composite containing 1-5 at. % of the total Si content by adding Si to ASTM 2000 series aluminum alloy; holding the matrix in the temperature range of 560-610.degree. C. to obtain a liquid fraction of 40-70% and thereafter performing a thixoforming process.

Abstract: High temperature alloys resistant to degradation and oxidation are provided. In accordance with preferred embodiments, alloys comprising from about 0.1 to about 50 atomic percent silicon, from about 10 to about 80 atomic percent aluminum, and at least one metal selected from the group consisting of chromium, iridium, rhenium, palladium, platinum, rhodium, ruthenium, osmium, molybdenum, tungsten, niobium and tantalum are formed. Shaped bodies and structural members comprising such alloys are also described as are methods for their fabrication.

Abstract: This invention relates to master alloy hardeners for use in preparing aluminum base alloys. The respective concentrations of the alloying elements in the master alloy hardener are a multiple equal to or greater than 2 of the concentrations of such elements in the base alloy, and the ratios of the alloying elements in the master alloy hardener to each other are the same as the ratios of the alloying elements in the base alloy. After the aluminum base alloy and the concentration of each alloying element therein are identified, a desired multiple of such concentrations is determined. An aluminum master alloy is prepared that contains the alloying elements at concentrations equivalent to such multiple of the corresponding concentrations of the elements in the base alloy. The master alloy hardeners are added to commercially pure aluminum to provide the desired base alloy.

Abstract: A brazing powder comprises a single powder or mixture powder that is composed of one or more type of elements consisting of Al, Si and Zn, having the composition of Al--Si--Zn hypereutectic alloy in terms of the total amount. The brazing powder comprises above 15% but up to 60% by weight of Si and 5% to 30% by weight of Zn.

Abstract: A continuous-cast and cold-rolled aluminum alloy sheet for a cross fin, characterized by a chemical composition consisting of not less than 0.05 wt % and less than 0.30 wt % Fe, more than 0.03 wt % and less than 0.10 wt % Mn, an amount of a grain refining agent, and the balance of Al and unavoidable impurities including less than 0.15 wt % Si; a microstructure substantially composed of subgrains; and an electrical conductivity of 55% IACS or more. The aluminum alloy sheet is advantageously produced by a process including the steps of continuous-casting an aluminum alloy melt having the above-mentioned chemical composition to form a cast sheet having a sheet thickness of not more than 30 mm; cold-rolling the cast sheet at a reduction of 90% or more, followed by a temper annealing at a temperature of from 250 to 300.degree. C. for a holding time of 2 hours or more.

Abstract: In a thixocasting process, the following steps are used: a step of subjecting, to a heating treatment, an Al-Si based alloy material having a hypo eutectic crystal composition and a characteristic that a first angled endothermic section appearing due to the melting of a eutectic crystal and a second angled endothermic section appearing due to the melting of a component having a melting point higher than a eutectic point exist in a differential calorimetric curve, thereby preparing a semi-molten Al-Si based alloy material having solid and liquid phases coexisting therein; a step of pouring the semi-molten Al-Si based alloy material into a cavity in a casting mold under pressure; and a step of solidifying the semi-molten Al-Si based alloy material under pressure. When the temperature of a rise-start point in the first angled endothermic section is represented by T.sub.1, and the temperature of a drop-end point the first angled endothermic sections is represented by T.sub.

Abstract: An aluminum alloy for pistons and a method of manufacturing pistons making use of said alloy, enabling casting without sacrificing the ease of casting, and restricting deformation and melting at high temperatures, and fatigue and wear caused by high speed sliding movement. The aluminum alloy contains Si+SiC in an amount in the range of 8% to 20% by weight, and SiC in an amount of 2% or more by weight. An ingot containing the aluminum alloy is melted, sprayed in the state of mist, rapidly cooled and solidified into rapidly cooled powder. The rapidly cooled powder is heated and solidified into a blank from which the piston is forged, heat-treated, and machined.

Abstract: Solid and liquid phases coexist in a semi-molten casting material. A plurality of composite-solid phases having liquid and solid phase regions and a plurality of single-solid phases exist as the solid phases in a mixed state in an outer layer portion of the semi-molten casting material. If the sectional area of the solid phase region is represented by A, and the sectional area of the solid phase region is represented by B in one of the composite-solid phases, the liquid phase enclosure rate P of the composite-solid phase is defined as being represented by P={B/(A+B)}.times.100 (%). The liquid phase enclosure rate P of the single-solid phase is equal to 0 (%). When two groups are selected from a class of the solid phases, for example, by first and second straight lines so as to include a plurality of the solid phases, average values M.sub.1 and M.sub.2 of liquid phase enclosure rates of, for example, six solid phases in each of the first and second groups are represented by M.sub.1 =(P.sub.1 +P.sub.2 - - - +P.

Abstract: A high-strength extruded article of an age-hardening aluminum alloy capable of educing an achromatic dark gray color after the anodizing treatment thereof and a method for the production thereof are disclosed. The method comprises subjecting an alloy billet comprising 0.9 to 3.0% by weight of Si, 0.3 to 0.6% by weight of Mg, less than 0.3% by weight of Fe, and the balance of Al and unavoidable impurities or an alloy billet comprising 0.005 to 0.1% by weight of Ti either alone or in combination with 0.001 to 0.02% by weight of B besides the components mentioned above to a soaking treatment at a temperature in the range of from 350 to 480.degree. C. for 2 to 12 hours, extruding the soaked alloy billet at a billet temperature in the range of from 380 to 450 .degree. C., and subjecting the extruded alloy to an aging treatment at a temperature in the range of from 170 to 200.degree. C. for 2 to 8 hours.

Abstract: A high-strength and high-ductility aluminum-base alloy consisting of a composition of general formula: Al.sub.ba1 Mn.sub.a Si.sub.b or Al.sub.ba1 Mn.sub.a Si.sub.b TM.sub.c (wherein TM is one or more elements selected from the group consisting of Ti, V, Cr, Fe, Co, Ni, Cu, Y, Zr, La, Ce and Mm; and a, b and c are, in atomic percentages, 2.ltoreq.a.ltoreq.8, 0.5.ltoreq.b.ltoreq.6, 0<c.ltoreq.4, and a.gtoreq.b), wherein the alloy contains quasi-crystals. The an aluminum-base alloy have superior mechanical properties such as high hardness, high strength and high ductility.

Abstract: Described herein is an SiC-reinforced aluminum alloy composite material of the type having silicon carbide uniformly dispersed in an aluminum alloy matrix containing magnesium as a strengthening element, characterized in that the composite material contains Al4C3 in an amount smaller than 0.5 wt % and residual oxygen in an amount smaller than 0.4 wt %, and has a modulus of elasticity higher than 9000 kgf/mm.sup.2.

Abstract: A method of joining similar or dissimilar ceramic and ceramic composite materials, such as SiC continuous fiber ceramic composites, at relatively low joining temperatures uses a solventless, three component bonding agent effective to promote mechanical bond toughness and elevated temperature strength to operating temperatures of approximately 1200 degrees C. The bonding agent comprises a preceramic precursor, an aluminum bearing powder, such as aluminum alloy powder, and mixtures of aluminum metal or alloy powders with another powder, and and boron powder in selected proportions. The bonding agent is disposed as an interlayer between similar or dissimilar ceramic or cermaic composite materials to be joined and is heated in ambient air or inert atmosphere to a temperature not exceeding about 1200 degrees C. to form a strong and tough bond joint between the materials.

Abstract: The present invention relates to an Al alloy solder material comprising a composition containing Si in an amount of more than 7.0 to 12.0% or less by weight, Cu in an amount of more than 0.4 to 8.0% or less by weight, Zn in an amount of more than 0.5 to 6.0% or less by weight, Mn in an amount of more than 0.05 to 1.2% or less by weight and Fe in an amount of more than 0.05 to 0.5% or less by weight, or at need, further one or both of In and Sn respectively in an amount of 0.3% or less by weight, with the remainder being Al and inevitable impurities. A brazing sheet clad with the solder material and used for various members of the heat exchanger enables satisfactory brazing at a temperature as low as 570.degree. to 580.degree. C. and is excellent in corrosion resistance. Since the brazing sheet is brazed at a low temperature, a high-strength material having a low melting point is used for a core material of a fin, a tube or the like.

Abstract: The invention relates to an aluminum alloy sheet heat treated by natural aging, quenching and possibly tempering so as to obtain a yield strength greater than 320 MPa, for use in mechanical, naval, aircraft, or spacecraft construction, with a composition (by weight) of:Si: 6.5 to 11%Mg: 0.5 to 1.0%Cu: <0.8%Fe: <0.

Abstract: A sputtering target comprising a body of metal such as aluminum and its alloy with an ultrafine grain size and small second phase. Also described is a method for making an ultra-fine grain sputtering target comprising melting, atomizing, and depositing atomized metal to form a workpiece, and fabricating the workpiece to form a sputtering target. A method is also disclosed that includes the steps of extruding a workpiece through a die having contiguous, transverse inlet and outlet channels of substantially identical cross section, and fabricating the extruded article into a sputtering target. The extrusion may be performed several times, producing grain size of still smaller size and controlled grain texture.

Abstract: An aluminum alloy sheet for printing plate contains Fe: 0.2 to 0.6 Wt %, Si: 0.03 to 0.15 Wt %, Ti: 0.005 to 0.05 Wt %, Ni: 0.005 to 0.20 Wt %, and remainder of Al and inevitable impurity, wherein a ratio of Ni content and Si content satisfies 0.1.ltoreq.Ni/Si.ltoreq.3.7. The aluminum alloy sheet is manufactured by homogenizing an aluminum alloy ingot at a temperature in a range of 500.degree. to 630.degree. C., after performing hot rolling at start temperature in a range of 400.degree. to 450.degree. C., providing cold rolling and intermediate annealing, and further performing final cold rolling. By this, the aluminum alloy sheet for printing plate is prevented from pit generation upon dipping in electrolytic solution in a condition where an electric power is not applied. Uniformity of grained surface of the aluminum alloy sheet by electrolytic treatment can be improved.

Abstract: An aluminum alloy support for a planographic printing plate is disclosed, which is an aluminum alloy plate comprising 0<Fe.ltoreq.0.20 wt %, 0.ltoreq.Si.ltoreq.0.13 wt %, Al.gtoreq.99.7 wt % and the balance of inevitable impurity elements, wherein the number of intermetallic compounds present in the arbitrary thickness direction with in 10 .mu.m from the plate surface is from 100 to 3,000 per mm.sup.2 and the intermetallic compound has an average particle size of from 0.5 to 8 .mu.m, with the intermetallic compounds having a particle size of 10 .mu.m or more being in a proportion by number of 2% or less. Also disclosed is a method for producing the above-described aluminum alloy support.

Abstract: A method of refining a melt of aluminum scrap material which comprises metallic aluminum and impurities including iron, in order to obtain a target iron level. The method includes the steps of determining the initial amounts in the melt of Mn, Fe and Si, adding a quantity of Mn to the melt so as to obtain in the melt, after refining of the melt a ratio of Mn in the melt to a desired target level of Fe. Thereafter, the method includes the steps of homogenizing the melt by heating, cooling the melt and maintaining it at a super-eutectic holding temperature so that solid intermetallic compounds form and finally separating the solid intermetallic compounds from the melt.

Abstract: A sacrificial anode and method of making a sacrificial anode are provided. The anode includes an extruded galvanically active metal rod and integrally formed end cap which has a cylindrically shaped portion with a threaded exterior surface. The anode is formed by extruding the rod, forging the end cap from the anchoring end portion of the rod, and machining the outer surface of the end cap to provide threads.

Abstract: An amorphous alloy which is resistant to hot corrosion in sulfidizing and oxidizing atmospheres at high temperatures, consisting of at least one element selected from the group of Al and Cr and at least one element selected from the refractory metals Mo, W, Nb, and Ta, a portion of the set forth refractory metals being allowed to be substituted with at least one element selected from Fe, Co, Ni and Cu. The addition of Si further improves the alloy's oxidation resistance.

Abstract: A high-strength and high-toughness aluminum-based alloy having a composition represented by the general formula: Al.sub.a Ni.sub.b X.sub.c M.sub.d Q.sub.e, wherein X is at least one element selected from the group consisting of La, Ce, Mm, Ti and Zr; M is at least one element selected from the group consisting of V, Cr, Mn, Fe, Co, Y, Nb, Mo, Hf, Ta and W; Q is at least one element selected from the group consisting of Mg, Si, Cu and Zn; and a, b, c, d and e are, in atomic percentage, 83.ltoreq.a.ltoreq.94,3, 5.ltoreq.b.ltoreq.10, 0.5.ltoreq.c.ltoreq.3, 0.1.ltoreq.d.ltoreq.2, and 0.1.ltoreq.e.ltoreq.2. The aluminum-based alloy has a high strength and an excellent toughness and can maintain the excellent characteristics provided by a quench solidification process even when subjected to thermal influence at the time of working. In addition, it can provide an alloy material having a high specific strength by virtue of minimized amounts of elements having a high specific gravity to be added to the alloy.

Abstract: A new aluminum based alloy having properties which mimic homogenized DC cast 3003 alloy and a low-cost method for manufacturing it are described. The alloy contains 0.40% to 0.70% Fe, 0.10% to less than 0.30% Mn, more than 0.10% to 0.25% Cu, less than 0.10% Si, optionally up to 0.10% Ti and the balance Al and incidental impurities. The alloy achieves properties similar to homogenized DC cast 3003 when continuously cast followed by cold rolling and if desired annealing at final gauge. Suprisingly no other heat treatments are required.

Abstract: An alloy of aluminum containing magnesium, silicon and optionally copper in amounts in percent by weight falling within one of the following ranges:(1) 0.4.ltoreq.Mg.ltoreq.0.8, 0.2.ltoreq.Si.ltoreq.0.5, 0.3.ltoreq.Cu.ltoreq.3.5;(2) 0.8.ltoreq.Mg.ltoreq.1.4, 0.2.ltoreq.Si.ltoreq.0.5, Cu.ltoreq.2.5; and(3) 0.4.ltoreq.Mg.ltoreq.1.0, 0.2.ltoreq.Si.ltoreq.1.4, Cu.ltoreq.2.0; said alloyhaving been formed into a sheet having properties suitable for automotive applications. The alloy may also contain at least one additional element selected from the group consisting of Fe in an amount of 0.4 percent by weight or less, Mn in an amount of 0.4 percent by weight or less, Zn in an amount of 0.3 percent by weight or less and a small amount of at least one other element, such as Cr, Ti, Zr and V.

Abstract: A high heat resisting and high abrasion resisting aluminum alloy and aluminum alloy powder have superior toughness, abrasion resistance, high temperature strength, and creep resistance and are useful to form engine parts for automobiles, airplanes, etc. The high heat resisting and high abrasion resisting aluminum alloy comprises 2 to 15 wt % of Ni, 0.2 to 15 wt % of Si, 0.6 to 8.0 wt % of Fe, one or two of 0.6 to 5.0 wt % of Cu and 0.5 to 3 wt % of Mg, the total amount of Cu and Mg being equal to or less than 6 wt %, one or two of 0.3 to 3 wt % of Zr and 0.3 to 3 wt % of Mo, the total amount of Zr and Mo being equal to or less than 4 wt %, 0.05 to 10 wt % of B, and the balance of Al and unavoidable impurities, and is produced by powder metallurgy.