Abstract: A process for fabricating an aluminum alloy rolled sheet particularly suitable for use for an automotive body, the process comprising: (a) providing a body of an alloy comprising: about 0.8 to about 1.5 wt. % silicon, about 0.2 to about 0.65 wt. % magnesium, about 0.02 to about 0.1 wt. % copper, about 0.01 to about 0.1 wt. % manganese, about 0.05 to about 0.2 wt. % iron; and the balance being substantially aluminum and incidental elements and impurities; (b) working the body to produce a the sheet; (c) solution heat treating the sheet; and (d) rapidly quenching the sheet. In a preferred embodiment, the solution heat treat is preformed at a temperature greater than 860.degree. F. and the sheet is quenched by a water spray. The resulting sheet has an improved combination of formability, strength and corrosion resistance.

Abstract: An A-rated aluminum alloy suitable for machining, said alloy consisting essentially of: about 0.15-1.0 wt. % copper, about 1.01-1.5 wt. % tin, about 0.65-1.35 wt. % magnesium, about 0.4-1.1 wt. % silicon, about 0.00 2-0.35 wt. % manganese, up to about 0.5 wt. % iron, up to about 0.15 wt. % chromium and up to about 0.15 wt. % titanium, the remainder substantially aluminum. On a preferred basis, this alloy contains about 0.51-0.75 wt. % copper, about 1.1-1.3 wt. % tin, about 0.7-0.9 wt. % magnesium and about 0.45-0.75 wt. % silicon. The alloy is substantially free of lead, bismuth, nickel, zirconium and cadmium. There is further disclosed an improved method for making screw machine stock or wire, rod and bar product from this alloy by casting, preheating, extruding, solution heat treating, cold finishing and thermally processing the aforementioned alloy composition.

Abstract: A method is described for preparing a refined or reinforced eutectic or hyper-eutectic metal alloy, comprising: melting the eutectic or hyper-eutectic metal alloy, adding particles of non-metallic refractory material to the molten metal matrix, mixing together the molten metal alloy and the particles of refractory material, and casting the resulting mixture under conditions causing precipitation of at least one intermetallic phase from the molten metal matrix during solidification thereof such that the intermetallics formed during solidification wet and engulf said refractory particles. The added particles may be very small and serve only to refine the precipitating intermetallics in the alloy or they may be larger and serve as reinforcing particles in a composite with the alloy. The products obtained are also novel.

Abstract: An aluminum alloy useful for drawing and/or ironing, particularly of drink cans. The alloy consists essentially of, in weight percent, Fe<0.25; Si<0.25; Mn from 1.05 to 1.6; Mg from 0.7 to 2.5; Cu from 0.20 to 0.6; Cr from 0 to 0.35; Ti from 0 to 0.1; V from 0 to 0.1; other elements: each <0.05; total<0.15; and remainder Al.

Abstract: An abrasion-resistant aluminum alloy consists of 13.0 to 16.0 percent by weight of Si, 4.0 to 5.0 percent by weight of Cu, at least 0.8 and less than 1.4 percent by weight of Mg, not more than 0.8 percent by weight of Fe, not more than 0.1 percent by weight of either P or at least one of Na, Sb and Sr and a remainder of Al and unavoidable impurities. The alloy's microstructure contains coarse Si particles of 15 to 40 .mu.m mean particle diameter, fine Si particles of not more than 5 .mu.m mean particle diameter and other fine particles, with a homogeneous dispersion of all of these particles. This abrasion-resistant aluminum alloy has specific abrasion loss of not more than 10.times.10.sup.-7 mm.sup.2 /kg.

Abstract: A cast hypereutectic Al-Si alloy having 12% to 15% Si, and a method of producing such alloy. The alloy and a melt used in the method has at least one element of a first group of elements and at least one element of a second group of elements and further comprises Cu 1.5 to 5.5%; Ni 1.0 to 3.0%; Mg 0.1 to 1.0%; Fe 0.1 to 1.0%; Mn 0.1 to 0.8%; Zr 0.01 to 0.1; Zn 0 to 3.0%; Sn 0 to 0.2%; Pb 0 to 0.2%; Cr 0 to 0.1; Si modifier (Na, Sr) 0.001 to 0.1%; B (elemental) 0.05% maximum; Ca 0.03% maximum; P 0.05% maximum; and others 0.05% maximum each, the balance, apart from incidental impurities being Al. The element of the first group provides stable nucleant particles in the melt. The element of the second groups forms an intermetallic phase such that crystals of the phase form in advance of and nucleate primary Si to provide complex particles which promote nucleation of Al-Si eutectic on cooling of the melt below the eutectic solidification temperature.

Abstract: An aluminum alloy powder for sliding members includes Fe in an amount of from 0.5 to 5.0% by weight, Cu in an amount of from 0.6 to 5.0% by weight, B in an amount of from 0.1 to 2.0% by weight and the balance of Al. An aluminum alloy includes a matrix made from the aluminum alloy powder and at least one member dispersed, with respect to whole of the matrix taken 100% by weight, in the matrix, and selected from the group consisting of B in an amount of from 0.1 to 5.0% by weight, boride in an amount of from 1.0 to 15% by weight and iron compound in an amount of from 1.0 to 15% by weight, and thereby it exhibits the tensile strength of 400 MPa or more. The aluminum alloy powder and the aluminum alloy are suitable for making sliding members like valve lifters for automobiles.

Abstract: A sintered Al-alloy, which has a composition of 0.2 to 2.0% of Mg, 10.0 to 35.0% of Si, from 0.2 to 4.0% of Cu, and Al and unavoidable impurities in balance, is produced by using a mixture of the main powder (10.0-35.0% of Si, 0.2-2.0% of Cu, and Al and unavoidable impurities in balance) and at least one metal or mother-alloy powder selected from (a)-(i): (a) Mg powder; (b) Al--Mg powder; (c) Al--Cu powder; (d) Al--Mg--Si powder; (e) Al--Cu--Si powder; (f) Al--Mg--Cu powder; (g) Al--Mg--Cu--Si powder; (h) Mg--Cu powder; and, (i) Mg--Cu--Si powder.

Abstract: The aluminum alloy of the invention has excellent fatigue strength, high rigidity, and low thermal expansion coefficient, and is suitable for rotating components such as conrods in an internal combustion engine. The aluminum alloy is an Al-Si alloy which contains 7.0-12.0% wt. Si, 3.0-6.0 % wt. Cu, 0.20-1.0% wt. Mg, 0.30-1.5% wt. Mn, 0.40-2.0% wt. Ti+V, 0.05-0.5% wt. Zr, and the remainder Al and being inevitable impurities and which contains a dispersed intermetallic compound of average particle size of 0.5 m or less and containing Ti, V, and Zr. The alloy is preferably manufactured by the rapidly solidifying powder metallurgy process, or by the spray-forming process. By selecting a work-hardening exponent of 0.20 or less, the thread rolling workability is improved.

Abstract: A low melting aluminum brazing alloy of about 15-25 wt. percent silver, about 15-25 wt. percent copper, about 1-5 wt. percent silicon, about 0-3 wt. percent zinc, about 0-2 wt. percent magnesium, about 0-2 wt. percent iron and the balance essentially aluminum and incidental impurities. Also, a brazing product of this alloy and a method of joining aluminum components using the brazing product.

Abstract: A hypereutectic aluminum-silicon alloy produced by a powder metallurgy technique disclosed herein comprises 12 to 50% by weight of silicon, 1.0 to 5.0% by weight of copper and 0.01 to 0.05% by weight of phosphorus, the content of Ca as an impurity being controlled to be 0.03% by weight or less. The hyereutectic aluminum-silicon alloy of the present invention is excellent in machinability and mechanical strength.

Abstract: A connecting rod for a two-cycle internal combustion engine that is composed of a hypereutectic aluminum-silicon alloy containing more than 12% silicon. The alloy contains precipitated particles of silicon having an average particle size less than 50 microns. In contrast to a hypoeutectic aluminum silicon alloy containing less than 12% silicon, the hypereutectic aluminum-silicon alloy has an endurance limit, so that at stresses below about 15,000 psi there will be no failure of the alloy at multiple cycles, making the alloy suitable for use as a connecting rod in a two-cycle engine, which is only subjected to compressive stress in service.

Abstract: A hyper-eutectic aluminum-silicon powder containing extremely fine primary crystal silicon, is prepared by atomizing. First, a molten metal of a hyper-eutectic aluminum-silicon alloy containing phosphorus is prepared. This molten metal or melt is atomized with air or an inert gas and quench-solidified. Aluminum-silicon alloy powder containing primary crystal silicon of not more than 10 .mu.m in crystal grain size is obtained. This aluminum-silicon alloy powder contains at least 12 percent by weight and not more than 50 percent by weight of silicon and at least 0.0005 percent by weight and not more than 0.1 percent by weight of phosphorus. When this hyper-eutectic aluminum-silicon alloy powder is employed, it is possible to prepare a consolidate of powder which has improved mechanical properties, and provides a high yield.

Abstract: The present invention relates to an alloy metal horseshoe for a race horse. The objective of the invention is to provide an alloy metal horseshoe for a race horse, which is light in weight, of great expansibility and hardness, with high abrasion resistance, shock absorption and ductility, capable of being slightly modified to suit the form of the horsehoof at the time of fitting, and that can rationalize the manufacturing process with heat treatment omitted. The horseshoe used a metal alloy made by mixing and dissolving Si:0.05-0.10%, Fe:0.05-0.10%(WT), Cu:0.10-0.20%(WT), Mn:0.10-0.20%(WT), Mg:3.00-5.00%(WT), Cr:0.05-0.15%, Zn:0.05-0.10%, and Al:96.6-94.15%(WT) in an electric furnace.

Abstract: An oil pump comprises a casing of aluminum alloy and at least one rotor housed therein. The rotor is produced by powder metallurgical with a rapidly solidified aluminum alloy comprising, by weight, of 5 to 25% of Si, up to 15% of one or more alloy elements selected from the group consisting of 3 to 10% of Fe, 3 to 10% of Ni and 1 to 8% of Cr, and the balance of Al and inevitable impurities. The casing may be produced by powder metallurgy or ingot metallurgy with an aluminum alloy consisting essentially, by weight, of 5 to 25%, preferably 5 to 17%, of Si, 1 to 5% of Cu, 0.2 to 1.5% of Mg, 0.2 to 1% of Mn, and the balance of Al and inevitable impurities. The rotor and casing are so combined that the sum of the Si content of said rapidly solidified aluminum alloy for casing and that of said rapidly solidified aluminum alloy for rotor being equal to or more than 15 percent by weight.

Abstract: A rapidly solidified brazing alloy consists essentially of about 14 to 45 weight percent magnesium and 0 to 10 weight percent of at least one element selected from the group consisting of silicon, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities. The alloy has a microcrystalline structure containing uniformly distributed intermetallic particles. It has the form of a foil (liquidus temperature <570.degree. C.) and can be used to braze non-heat-treatable rapidly solidified Al-Fe-V-Si alloy foil, sheet, plate, and tubing to produce components such as deicing duct, overduct, radiator, heat exchanger, evaporator, honeycomb panel for elevated temperature applications.

Abstract: The invention provides an aluminum alloy material consisting essentially of, by weight percent, 1% to 1.8% Cu, 0.8% to 1.4% Mg, 0.2% to 0.39% Si, 0.5% to 0.4% Fe, 0.05% to 0.40% Mn, with the balance aluminum with normal impurities. The alloy forms two precipitation phases during heat treatment and age hardening: a beta phase of Mg.sub.2 Si and an S' phase of Al.sub.2 CuMg. The alloy has improved formability without significant sacrifice of strength, and is particularly suited to be formed into automobile sheet metal parts such as hood lids, trunks lids, and fenders.

Abstract: A sintered aluminum-alloy consisting essentially in weight of 0.1-2.0% Mg, 0.1-2.0% Si, 0.2-6.0% Cu and Al and unavoidable impurities in balance is produced by sintering a mixture of a first aluminum-alloy starting powder and at least one second aluminum-alloy starting powder. The first aluminum-alloy powder consists of 0.1-3.0% Cu and Al and unavoidable impurities in balance and the second aluminum-alloy is selected from (1) an aluminum alloy starting powder consisting of 4-20% Mg, 12-30% Si and Al and unavoidable impurities in balance and (2) an aluminum-alloy starting powder consisting of from 0.1-20.0% Mg, 1-20% Si, 30-50% Cu and Al and unavoidable impurities in balance.

Abstract: A method of evaporable foam casting of metal articles, such as engine blocks for internal combustion engines. An evaporable foam pattern having a configuration proportionally identical to the article to be cast is positioned in a mold and a finely divided flowable material, such as sand, surrounds the pattern and fills the internal cavities of the pattern. A molten hypereutectic aluminum-silicon alloy containing 16% to 19.5% by weight of silicon and containing a magnesium content in excess of the magnesium solid solubility limit, is fed into the mold and into contact with the pattern. The heat of the molten metal vaporizes the pattern, with the vapor being trapped within the sand and the molten metal filling the void created by vaporization of the pattern to provide a cast article. The high magnesium content in the alloy produces in the solid state a Mg.sub.

Abstract: An aluminum alloy consisting of: 1.0-1.5 wt % Si, 0.4-0.9 wt % Cu, 0.2-0.6 wt % Mn, 0.8-1.5 wt % Mg, 0.3-0.9 wt % Cr, 0.03-0.05 wt % Ti, 0.0001-0.01 wt % B, and the balance consisting of Al and unavoidable impurities; the sum of the Mn and Cr contents being not more than 1.2 wt % and the content of Fe as one of the unavoidable impurities being not more than 0.2 wt %. The alloy may further comprise 0.1-0.2 wt % Zr to facilitate the refinement of crystal grains. The alloy has a tensile strength of 40 kgf/mm.sup.2 or more and an elongation of 15% or more when plastically formed, solution-treated and aged to provide the highest strength.

Abstract: A hypereutectic aluminum-silicon casting alloy having a refined primary silicon particle size and a modified silicon phase in the eutectic. The aluminum base alloy includes from 19% to 30% by weight of silicon and also contains 0.005% to 0.06% by weight of phosphorus, and 0.15% to 1.15% by weight of titanium. On cooling from solution temperature, the phosphorus serves as an active nucleant for the primary silicon phase, while at a lower temperature, a titanium-aluminum intermetallic compound is formed that is sheathed by the pseudoprimary .alpha.-aluminum and the sheathed particles act as a nucleant to modify the acicular silicon phase in the eutectic. The resulting alloy has primary silicon refinement coupled with eutectic silicon modification.

Abstract: An extrusion ingot of an Al-Mg-Si alloy, has substantially all the Mg present in the form of particles having an average diameter of at least 0.1 microns of beta'-phase Mg.sub.2 Si in the substantial absence of bet-phase Mg.sub.2 Si. The ingot may be made by casting an ingot of the alloy, homogenizing the ingot, cooling the homogenized ingot to a holding temperature of 250.degree. C. to 425.degree. C. at a cooling rate of at least 400.degree. C./h, holding the ingot for 0.25 to 3 hours, and cooling. The ingot has improved extrusion properties.

Abstract: An aluminum-alloy main-starting powder for producing a sintered aluminum-alloy consists of from 0.1 to 3.0% of Cu, the balance being Al and unavoidable impurities. Mother alloy powder consists of from 4 to 20% of Mg, from 12 to 30% of Si, and Al and unavoidable impurities in balance. A mixture of the two powders may also be produced. Further, from 0.2 to 2.0% of a lubricant may be added to the mixture.

Abstract: Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9 wt. % Si, 3 to 7 wt. % Ni, 1.5 to 6 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.

Abstract: An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.5 percent lithium, 1.0 percent magnesium, 1.6 percent copper, 0.12 percent zirconium with the balance being aluminum and trace elements.

Abstract: An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.2 percent lithium, 0.6 percent magnesium, 2.5 percent copper, 0.12 percent zirconium with the balance being aluminum and trace elements.

Abstract: A worked rod extrusion product for fabricating into products having high wear resistance surfaces, the product comprised of 11 to 13.5 wt. % Si, 0.5 to 1.45 wt % Cu, 0.8 to 3 wt. % Mg, 0.5 to 2.95 wt. % Ni, max 1 wt. % Fe, max 0.1 wt. % Cr, max 0.25 wt. % Zn, the balance aluminum, incidental elements and impurities.

Abstract: Welding alloys based upon aluminum, copper, mangesium, silver and lithium have been found to possess exceptional properties such as resistance to hot cracking, high strength and ductility, and an unexpected natural aging response. The aluminum-base alloys may contain 3.5 to 7 weight percent Cu, 0.05 to 1.5 weight percent Mg, 0.01 to 2 weight percent Ag, 0.1 to 4 weight percent Li, and 0.01 to 2 weight percent grain refiner.

Abstract: An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.2 percent lithium, 0.6 percent magnesium, 2.5 percent copper, 0.12 percent zirconium with the balance being aluminum and trace elements.

Abstract: Novel aluminum alloy composition and process for producing aluminum rolled semifinished strip material having a grain structure with grain diameters less than about 11 um, and having less than about 5 vol. % of rod shaped intermetallic phases. The present process comprises the steps of homogenizing rolling ingots of the present alloys, hot-rolling and the cold-rolling the ingots without intermediate annealing, and finally annealing the cold-rolled bars having a thickness between about 40 and 250 um.

Abstract: An aluminum alloy that can be fabricated into aluminum sheet having novel properties is provided. The strip stock is suitable for the fabrication of both container ends and container bodies in thinner gauges than are typically presently employed, has low earing characteristics and may be derived from recycled aluminum scrap. The alloy preferably has a magnesium concentration of from about 2 to about 2.8 weight percent and a manganese concentration of from about 0.9 to about 1.6 weight percent. The process preferably includes continuous chill block casting the alloy melt into a strip, hot rolling the strip to a first thickness, annealing the hot rolled strip and then cold rolling the annealed strip to a final thickness. Cold rolling preferably includes two stages with an intermediate anneal step between the two stages. The process increases tensile and yield strength while decreasing earing percentage, even in very thin gauges, such as 0.010 inches.

Abstract: The invention concerns an alloy based on Al and essentially containing Li, Cu, Mg and Zr as its chief elements. It has good cold deformation capability, particularly when sheets or strips are being cold rolled, and good damage resistance, that is to say essentially good resistance to fatigue and corrosion under tension, and good fracture toughness. The alloy is of the following composition, by weight: from 1.7 to 2.25% Li; from 1.0 to 1.5% Cu; from 1.0 to 1.8% Mg; from 0.04 to 0.15% Zr; up to 2% Zn; up to 0.15% Fe; up to 0.15% Si; up to 0.5% Mn; up to 0.25% Cr; others: each .ltoreq.0.05%, total .ltoreq.0.15%; remainder Al. The alloy can be used as a structural element, particularly in the aircraft and space industries.

Abstract: An aluminum alloy is prepared from an aluminum alloy powder having a composition of:lubricating componentPb: 3 to 15 Wt %;hardening componentSi: 1 to 12 Wt %;rainforcement componentone or more selected among Cu, Cr, Mg, Mn, NiZn, Fe and: 0.2 to 5.0 Wt %;and remainder of aluminum as principal material or matrix.To the aluminum alloy powder set forth above, powder state Pb in 3 to 12 Wt % is added. With the mixture of the aluminium alloy powder and Pb powder, a billet is formed. For the billet, extrustion process is performed in a extrusion ratio greater than or equal to 40. In the extruded block, Si particle dispersed in the aluminum matrix is in a grain size smaller than or equal to 12 .mu.m. Furthermore, at least of half of added Pb power particle is dispersed to have greater than or equal to 0.74 of circularity coefficient.

Abstract: A die cast, heat treated shaped aluminum silicon alloy article consisting essentially of, based on an alloy weight, from 13 or 25 wt % silicon, from 2 to 6 wt % copper, up to 1 wt % magnesium, balance alumium, said heat treated alloy being formed by the process comprising:subjecting said alloy while in molten condition to a primary pressure die casting at a casting pressure of from about 450 to about 500 kg/cm.sup.2 to form a primary pressure die cast product;removing the primary casting pressure from said primary pressure die cast product;prior to the time said aluminum silicon alloy completely solidifies, subjecting said primary pressure die cast alloy to a secondary pressure die casting so as to reduce the volume thereof from about 1.5 to about 3%;heating the thus treated product to a temperature of from about 460.degree. C. to about 520.degree. C. for a period of time of from about 2 to about 10 hours; andrapidly quenching said product to produce said article.

Abstract: Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9 wt. % Si, 3 to 7 wt. % Ni, 1.5 to 6 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.

Abstract: A squeeze formed aluminum-silicon cylinder liner for an internal combustion engine is produced from a melt consisting essentially of the following composition by weight: silicon 14% to 16%, copper 1.9% to 2.2%, nickel 1.0% to 1.4%, magnesium of 0.4% to 0.55%, iron 0.6% to 1.0%, manganese 0.3% to 0.6%, silicon modifier 0.02% to 0.1%, with the balance being aluminum and any unavoidable impurities, the as-formed article having an essentially eutectic microstructure containing not more than 10% of primary alpha-aluminum dendrites and being substantially free from intermetallic particles exceeding 10.mu. in diameter. The growth rate R of the solid phase during solidification is from 1,000 to 2,500 .mu./s and the temperature gradient G at the solid/liquid interface, expressed in .degree.C./cm is such that the ratio G/R is from 100 to 1,000.degree. Cs/cm.sup.2.

Abstract: The present invention provides a heat resistant alloy having a composition consisting essentially of, in weight percentages, 4 to 12% of Fe, 1 to less than 4.0% of Si, 1 to 6% of Cu, 0.3 to 3% of Mg, and the balance aluminum and incidental impurities. The aluminum alloy may further contain one or more elements selected from 0.5 to 5 wt. % of V, 0.5 to 5 wt. % of Mo and 0.4 to 4 wt. % of Zr, the total content of these components not exceeding 8 wt. %. Since the heat-resistant aluminum alloys have a superior combination of properties of high tensile strength, good ductility and high fatigue strength at elevated temperatures up to 200.degree. C. as well as moderate temperatures, they can be applied to structural members, such as connecting rods, of internal combustion engines, thereby considerably reducing the weight of such structural components. The use of the alloys results in an increased output power and high efficiency in the internal combustion engines.

Abstract: Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9.0 wt. % Si, 3.0 to 7.0 wt. % Ni, 1.5 to 6.0 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.

Abstract: A hypereutectic aluminum silicon alloy having an improved distribution of primary silicon in the microstructure. The alloy is composed by weight of 20% to 30% silicon, 0.4% to 1.6% magnesium, up to 1.4% iron, up to 0.3% manganese, 0.25% copper maximum and the balance aluminum. With this composition the aluminum silicon alloy system exhibits near zero shrinkage on solidification, a similarity of the liquid aluminum-silicon alloy and the primary silicon during the early stages of primary silicon precipitation, and thereby minimizes floatation of the precipitated primary silicon and to provide a more uniform distribution of the primary silicon in the microstructure and increase the wear resistant characteristics of the alloy.

Abstract: A process is disclosed for the manufacture of aluminium-graphite particulate composite using uncoated graphite particles for automobile and engineering applications. In the process the aluminium-alloy melt is treated with a reactive metal to increase the wettability of the alloy and the graphite particles. Further treatment of the melt and gradual addition of activated graphite powder and stirring at about 500 to about 600 r.p.m. at a temperature of about 700.degree. to about 720.degree. C. result in the composite.

Abstract: A high strength, corrosion-resistant alloy for brazing is disclosed, which alloy comprises 0.2-1.0 wt % of Cu, 0.1-0.5 wt % of Mg, 0.2-1.0 wt % of Si, and the balance of Al and inevitably present impurities. The weight ratio of Si/Mg is in the range of 1-2.5:1. The alloy may further comprise 0.03-0.5 wt % of Ni and/or one or more of Zr, Cr and Mn each in an amount of 0.05-0.5 wt %.

Abstract: The invention relates to an aluminum alloy for thin metal sheets suitable for the production of can lids and bodies, and to a process for manufacturing such metal sheets. The alloy contains, in percent by weight:from 0.8 to 1.8 manganesefrom 1 to 2 siliconfrom 0.7 to 3 magnesiumless than 0.7 ironless than 0.5 copperless than 0.5 chromium; andremainder aluminium.

Abstract: An alluminum alloy composition represented by the following general formula (I):Al.sub.a Mg.sub.b Ni.sub.c Mn.sub.d Si.sub.e Cu.sub.f Fe.sub.g Ti.sub.h Zn.sub.i B.sub.k Zr.sub.l (I)whereinb=about 2-8 wt %c=0--about 7 wt %d=0--about 3.0 wt %e=0--about 1.0 wt %f=0--about 1.0 wt %g=0--about 0.5 wt %h=0--about 0.3 wt %i=0--about 0.3 wt %j=0--about 0.1 wt %k=0--about 0.1 wt % andl=0--about 0.3 wt %; provided thatc+d.gtoreq.about 0.5 wt %, anda is balance.

Abstract: Aluminum alloy products particularly for automotive applications, e.g. panel members, may be produced from a body of aluminum base alloy consisting essentially of, by weight, 0.5 to 0.85% Si, 0.25 to 0.55% Mg, 0.05 to 0.4% Fe, 0.75 to 1.1% Cu, the balance essentially aluminum and incidental elements and impurities. The alloy body may be homogenized at a temperature in the range of 900.degree. to 1100.degree. F. and thereafter worked into a wrought product such as sheet which may be continuously solution heat treated and quenched and aged to a T4 condition prior to forming into vehicular panel members, for example.

Abstract: An Al-alloy containing Si, Fe, Cu and Mg and at least one of Mn and Co in the basic composition range of 8.0.ltoreq.Si.ltoreq.30.0 wt. %, 2.0.ltoreq.Fe.ltoreq.33.0 wt. %, 0.8.ltoreq.Cu.ltoreq.7.5 wt. %, 0.3.ltoreq.Mg.ltoreq.3.5 wt. %, 0.5.ltoreq.Mn.ltoreq.5.0 wt. % and/or 0.5.ltoreq.Co.ltoreq.3.0 wt. %, provided in a powder state. A sindered member formed of these Al-alloys displays high strength, excellent heat-resistivity and stress corrosion cracking resistivity. A structural member made of the sintered Al-alloy is manufactured through the steps of subjecting a powder press-shaped body formed at a temperature of 350.degree. C. or lower and at a pressure of 1,5.about.5.0 ton/cm to hot extrusion working at a temperature of 300.degree..about.400.degree. C. to form a raw material for forging, and then forge shaping the raw material at a temperature of 300.degree..about.495.degree. C.

Abstract: Disclosed is an aluminum-lithium alloy containing a predetermined amount of lanthanides which provides the alloy with an improved combination of strength and fracture toughness relative to a baseline alloy not containing lanthanides but otherwise having the alloy's composition.

Abstract: A hypereutectic aluminum-silicon casting alloy having particular use in casting cylinder blocks for marine engines. The alloy is composed by weight of 16% to 19% of silicon, 0.4 to 0.7% magnesium, up to 0.37% copper and the balance aluminum. With the stated silicon content the alloy has good fluidity and the precipitated silicon crystals provide excellent wear resistance. In addition, the alloy has a narrow solidification range of less than 150.degree. F., thereby providing the alloy with excellent castability. The copper content is maintained at a minimum so that the alloy has improved resistance to salt water corrosion.

Abstract: A method for producing aluminum alloy castings and the resulting product having improved toughness. An Al-Si or Al-Si-Cu alloy containing 4 to 24 wt % of silicon, iron and other incidental impurities, the balance being aluminum is melted, and the melt is heated to a temperature between 780.degree. C. and 950.degree. C. The melt is poured into a mold and there solidified. A solution heat treatment and aging are then conducted. The process is suitable for an alloy containing 0.25 to 1.4 wt % of iron. In a preferred embodiment, the alloy consists essentially of 6 to 12 wt % Si, 2 wt % Cu, 0.2 to 0.4 wt % Mg and other incidental impurities, the balance being aluminum. The solution heat treatment is preferably carried out by heating between 525.degree. 545.degree. C. for a period of 1 to 5 hours.

Abstract: An aluminium alloy with superior thermal neutron absorptivity contains 0.2-30 wt. % of Gd. An aluminium alloy for an wrought material with high-temperature strength contains 0.2-20 wt. % of Gd and 0.5-6 wt. % of Mg. An aluminium alloy for casting contains 0.2-10 wt. % of Gd and 6-12 wt. % of Si.

Abstract: A high strength, corrosion-resistant alloy for brazing is disclosed, which alloy comprises 0.2-1.0 wt % of Cu 0.1-0.5 wt % of Mg, 0.2-1.0 wt % of Si, and the balance of Al and inevitably present impurities. The weight ratio of Si/Mg is in the range of 1-2.5:1. The alloy may further comprise 0.05-0.5 wt % of Ni and/or one or more of Zr, Cr and Mn each in an amount of 0.05-0.5 wt %.