Abstract: A printing aluminum alloy material plate is described which provides good printing characteristics, that is, surface-treatment ability, burning ability and ink stain resistivity; the plate is obtained from an aluminum alloy material which is cold-rolled at a reduction rate of from 20 to 95% after being subjected to intermediate annealing at a temperature of 300.degree. to 550.degree. C. wherein the aluminum alloy material comprises 0.25 wt % or less Si, from 0.05 to 1.0 wt % Fe, 0.03 wt % or less Cu, 0.10 wt % or less Ti, and 0.03 wt % or less Mg and the balance of unavoidable impurities and Al.

Abstract: A weld filler material for fusion welding of high strength aluminum alloys, especially alloys of the AlZnMgCu type, contains4.1-6.5% of zinc,4.0-6.0% of magnesium,0.3-0.6% of copper,0.3-0.5% of manganese,at most 0.1% of titanium,at most 0.3% of chromium,at most 0.3% of zirconium,at most 0.1% of silicon andat most 0.3% of iron,the remainder being aluminum of commercial purity. The formation of cracks in the region of the weld seam can be prevented by means of the weld filler material.

Abstract: Disclosed is a method of making lithium containing aluminum base alloy products having improved properties in the short transverse direction. The method comprises the steps of providing a body of a lithium containing aluminum base alloy and heating the body to a temperature for initial hot working but at a temperature sufficiently low that a substantial amount of grain boundary precipitate is not dissolved. The method further includes hot working the heated body to provide an intermediate product, recrystallizing the intermediate product and then hot working the recrystallized product to a final shaped product. The final shaped product is solution heat treated, quenched and aged to provide a non-recrystallized final product having improved levels of short transverse properties.

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 aluminum alloy for the substrate of magnetic disk is disclosed, wherein 2 to 6 wt % of Mg and further either one or two of Cu within a range of 0.12 to 2.0 wt % and Zn within a range of 0.28 to 7.0 wt % are contained, and the remainder comprises of Al and inevitable impurities.

Abstract: A T4 tempered and straightened rolled sheet of the Al--Mg--Cu series aluminum-alloy which contains from 1.5 to 5.5% of Mg and from 0.18 to 1.5% of Cu as the essential alloying element, has excellent mechanical properties, an improved formability, of a non-generation of Luder's marks. After the T4 treatment and subsequent straightening, the sheet is subjected to heating to a temperature in the range of from 60.degree. to 360.degree. C., at a heating rate falling within the hatched region of FIG. 1 attached herewith, then holding within the hatched region of FIG. 2 attached herewith, and subsequently, cooling at a cooling rate falling within the hatched region of FIG. 1.

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: An aluminum alloy sheet as a fin material for tubes of a heat exchanger, excellent in high-temperature sagging resistance and sacrificial anode property and having a high room-temperature strength, which consists essentially of:Manganese: from 0.95 to 1.50 wt. %,silicon: from 0.5 to 1.2 wt. %,zinc: from 0.1 to 2.0 wt. %,at least one element selected from the group consisting of:copper: from 0.05 to 0.60 wt. %, andmagnesium: from 0.05 to 0.60 wt. %, where, the total amount of said copper and said magnesium being up to 1.0 wt. %, andthe balance being aluminum and incidental impurities.the above-mentioned aluminum alloy sheet may further additionally contain at least one element selected from the group consisting of:chromium: from 0.03 to 0.30 wt. %, andzirconium: from 0.03 to 0.15 wt. % where, the total amount of said chromium and said zirconium being up to 0.4 wt. %.

Abstract: Aluminum alloy comprises 10 to 36 wt % of Si, 2 to 10 wt % of at least one metal selected from the group consisting of Fe, Ni, Co, Cr and Mn, and remainder consisting essentially of aluminum. The aluminum alloy further includes 1.0 to 12 wt % of Cu and 0.1 to 3.0 wt % of Mg. In a method for producing the aluminum alloy the steps comprises preparing powder mixtures including Si, at least one of metal selected from the group consisting of Fe, Ni, Co, Cr and Mn, and remainder consisting essentially of Al, producing aluminum alloy powders, compacting the aluminum alloy powders into a shape and hot working the aluminum alloy powder compact.

Abstract: An improved method of making a lithoplate from a 5XXX type alloy which includes controlling the composition and casting practices to eliminate forming a pine tree metal structure in an ingot used for rolling a workpiece to be made into lithoplate. The method also includes homogenizing and hot rolling the ingot at a controlled initial temperature to produce a desired grain and metal microstructure in the sheet rolled from the ingot which is suited for providing a surface having substantially uniform and evenly distributed craters produced by an electrochemical method of graining.

Abstract: A method of producing a recrystallized aluminum-lithium product having improved levels of strength and fracture toughness is disclosed. The method comprises the steps of: providing a lithium-containing aluminum base alloy comprised of 0.5 to 4.0 wt. % Li, 0 to 5.0 wt. % Cu, 0 to 5.0 wt. % Mg, 0.10 to 1.0 wt. % of a grain structure control element selected from the class consisting of Zr, Cr, Hf, Ti, V, Sc, and Mn, 0.5 wt. % max. Fe, and 5 wt. % max. Si, with the balance consisting essentially of aluminum and incidental elements and impurities; heating the body to a high presoak temperature to homogenize the alloy; cooling the alloy to a first hot working temperature; reheating the alloy, after hot working, back to a high annealing temperature; cooling the alloy to a second hot working temperature to produce a first product; reheating the alloy to a lower annealing temperature; and then cold working the alloy.

Abstract: A weldable aluminum alloy workable into sheet form containing Si, Mg and Cu, and a process for its production are disclosed.The alloy comprises (in percent by weight) proportions of Si and Mg as defined by a trapezium having the following co-ordinates:______________________________________ Si Mg ______________________________________ (A) 0.5 0.1 (B) 0.5 0.2 (C) 1.3 0.5 (D) 1.3 0.1 ______________________________________Cu: 0.1-0.5;Mn: 0-0.2;Ti: 0-0.1;Fe: 0-0.35;other impurites each: .ltoreq.0.05total impurity content: .ltoreq.0.15balance Al.The production procedure comprises semi-continuous or continuous casting of blanks, an optional homogenisation operation, a hot transformation operation which is terminated in the range of 270.degree. to 340.degree. C., an optional cold transformation operation, a complete solution treatment, a shaping operation using stamping or pressing, folding, bending, etc . . . , and a tempering operation.

Abstract: Disclosed is a method of making an improved aluminum alloy coated sheet stock useful for fabricating into easy-open ends for beverage containers. The method comprises the steps of providing a body of an aluminum base alloy consisting essentially of, by weight, 4.0 to 5.5% Mg, 0.2 to 0.7% Mn, 0.05 to 0.40% Cu, the balance being aluminum, incidental elements and impurities and rolling the body to produce an aluminum sheet stock. The sheet stock is subjected to a structure refining operation to precipitate finally divided magnesium containing constituent and thereafter the sheet stock is coated with an organic coating material and cured at a temperature sufficiently low and for a period of time to avoid dissolving the precipitated constituent to provide coated sheet stock having improved levels of tensile strength and high levels of formability.

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: A method is disclosed for preparing an improved aluminum alloy plate product wherein the plate produced from an Al-Li-Cu-Mg alloy in the T351 condition is subjected to a thermal aging treatment wherein the plate is exposed to a temperature of about 170.degree. C..+-.2.degree. C. for about 32 hours .+-.0.5 hours.

Abstract: An aluminum base alloy wrought product having an isotropic texture and a process for preparing the same is disclosed. The product has the ability to develop improved properties in the 45.degree. direction in response to an aging treatment and is comprised of 0.5 to 4.0 wt.% Li, 0 to 5.0 wt.% Mg, up to 5.0 wt.% Cu, 0 to 1.0 wt.% Zr, 0 to 2.0 wt.% Mn, 0 to 7.0 wt.% Zn, 0.5 wt.% max. Fe, 0.5 wt.% max. Si, the balance aluminum and incidental impurities. The product has imparted thereto, prior to a hot rolling step, a recrystallization effect to provide therein after hot rolling a metallurgical structure generally lacking intense work texture characteristics. After an aging step, the product has improved levels of properties in the 45.degree. direction.

Abstract: The invention concerns Al-base alloys with substantial proportions of Li and Si, containing, by weight:from 3.6 to 8% Lifrom 5 to 14% Sifrom 0 to 1% of each of the following optional elements: Fe, Co, Ni, Cr, Mn, Zr, V, Ti, Nb, Mo, O.sub.2, Sc, andfrom 0 to 2% of each of the optional elements Cu, Mg and/or Zn, the total amount of the optional elements being less than 5%, and the balance being Al and impurities, each impurity.ltoreq.0.05%, with total impurities.ltoreq.0.15%. The products are obtained by rapid solidification processes and contain from 15 to 60% by volume of phase T (Al, Si, Li), in the form of particles of from 0.01 to 10 .mu.m.

Abstract: A method of producing an unrecrystallized wrought aluminum-lithium sheet product having improved levels of strength and fracture toughness is disclosed. The method comprises providing a body of a lithium containing aluminum base alloy comprised of 1.5 to 2.5 wt. % Li, 1.6 to 2.8 wt. % Cu, 0.7 to 2.5 wt. % Mg, 0.03 to 0.20 wt. % Zr, 0.5 wt. % max. Fe, 5 wt. % max. Si, the balance essentially aluminum and incidental elements and impurities. The body is heated to a hot working temperature, hot worked to produce a first product, then reheated while avoiding substantial recrystallization thereof, the reheating adapted to relieve stored energy capable of causing recrystallization during a subsequent heat treating step. The reheated product is solution heat treated, quenched and aged to provide a substantially unrecrystallized sheet product having improved levels of strength and fracture toughness.

Abstract: A high strength aluminum alloy including 5 to 13 wt % Si, 1 to 5 wt % Cu, 0.1 to 0.5 wt % Mg, 0.005 to 0.3 wt % Sr, and the balance Al and inevitable impurities. The aluminum alloy is subjected to pressure casting and T6 heat treatment. The solution treatment time can be shortened.

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 0.48% Mg, 0.05 to 0.4% Fe, 0.75 to 1.1% Cu, 0.1 to 0.5 wt. % Mn, the balance essentially aluminum and incidental elements and impurities. The alloy body may be homogenized at a temperature in the range 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: A wrought Al/Cu/Mg type aluminum alloy of high strength in the temperature range between 0 and 250.degree. C., having the following composition:Cu=5.0 to 7.0% by weightMg=0.3 to 0.8% by weightAg=0.2 to 1.0% by weightMn=0.3 to 1.0% by weightZr=0.1 to 0.25% by weightV=0.05 to 0.15% by weightSi<0.10% by weightIn this artificially aged state, the yield strength (0.2% limit) reached is more than 500 MPa at room temperature, almost 400 MPa at 200.degree. C. and about 300 MPa at 250.degree. C. At 180.degree. C., the creep strength is still more than 250 MPa after 500 hours.

Abstract: The invention is an oxalloy consisting essentially of about 5 to about 57 weight percent magnesium or aluminum and about 0.5 to about 10 weight percent of one or more alloying materials selected from the group consisting of B, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, As, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, Ga, In, Sn, Sb, Hf, Ta, W, Re, Os, Ir, Pt, Au, Tl, Pb, Bi, Th, and rare earths; and the remainder oxygen.The invention also includes a method for forming the above oxalloys and a substrate coated with the oxalloys of the present invention.

Abstract: An aluminum alloy-core material for brazing, having improved secular corrosion resistance is provided, by a composition of 0.5.about.1.0% of Cu, 0.5.about.1.0% of Mn, 0.10.about.0.30% of Ti, 0.3% or less of Fe, less than 0.10% of Si, and balance of Al, and contains, occasionally at least one element selected from the group consisting of from 0.05 to 0.4% of Mg, from 0.05 to 0.4% of Cr, and from 0.05 to 0.4% of Zr. The alloy is free of an Al-Fe intermetallic compound, has an improved resistance to pitting corrosion and exhibits only a slight reduction in mechanical strength after brazing.

Abstract: Silicon carbide particulate reinforced aluminum alloy matrix composites are formed using techniques which include agitation of a melt of aluminum alloy, containing magnesium, and silicon carbide particulates in a manner whereby the silicon carbide particles are maintained, during agitation, within the body of the melt; the agitation, which involves shearing or wiping of the particles in the liquid, is carried out under vacuum; and may involve incorporation into the melt of an additional amount of magnesium such that that amount compensates for the amount of magnesium which segregates to the carbide surfaces, and is sufficient to effect strengthening of the resulting composite. Aluminum alloy matrix composites, containing copper, are produced using similar agitation and mixing procedures, with the copper being incorporated in such a way as to discourage reaction between the copper and SiC particles.

Abstract: Disclosed herein are: (1) a formable bake-hardening type aluminum alloy sheet, containing 0.2-0.7 wt % of Fe, 0.05-0.5 wt % of Cu, 0.5-2.5 wt % of Mg, 0.5-2.0 wt % of Mn and optionally 0.05-1 wt % of Zn under the condition of Fe wt % +(Mn wt %.times.1.07)+(Mg wt %.times.0.27).ltoreq.3.0, and intermetallic compounds of less than 45 microns in size and an areal rate of 0.5-5% as observed from the surface of a rolled sheet and an average crystal grain width smaller than 25 microns; and (2) a method for producing such bake-hardening type aluminum alloy sheets.

Abstract: An interconnecting wire of aluminum alloy for semiconductor devices which as improved ball-forming performance in the ball-bonding process, without any loss of conductivity and corrosion resistance. There is also provided an interconnecting wire for semiconductor devices which is lowered in resistance, with a minimum loss of conductivity and without any adverse effect on the bonding performance. The interconnecting wire contains about 0.1 to 45 wt % of an element having a melting point lower than about 450.degree. C., with the balance being substantially aluminum, or contains about 0.1 to 45 wt % of one more elements having a melting point lower than about 450.degree. C. and about 0.2 to 2 wt % of one or more elements selected from the group consisting of silicon, magnesium, manganese, and copper, with the balance being substantially aluminum.

Abstract: The invention relates to hollow bodies for gas under pressure manufactured from an aluminum alloy containing Zn, Cu and Mg as principal alloying elements and intended in particular for the production of metal bottles for pressurized gas. The hollow bodies are manufactured from an alloy consisting essentially of (in % by weight):______________________________________ 6.25 .ltoreq. Zn .ltoreq. 8.0 Mn .ltoreq. 0.20 1.2 .ltoreq. Mg .ltoreq. 1.95 Zr .ltoreq. 0.05 1.7 .ltoreq. Cu .ltoreq. 2.8 Ti .ltoreq. 0.05 0.15 .ltoreq. Cr .ltoreq. 0.28 Others each .ltoreq.0.05 Fe .ltoreq. 0.20 Others total .ltoreq.0.15 Si + Fe .ltoreq. 0.40 Balance Al. ______________________________________The alloy in state T73 complies with the very severe technical requirements in respect of strength and ductility which are imposed in relation to use for hollow bodies under pressure.

Abstract: An extruded aluminum alloy improved especially in wear resistance and cuttability and comprising 12 to 30% of Si and 0.3 to 7.0% of Cu, with or without 0.3 to 2.0% of Mg, the balance being substantially aluminum. In this alloy, primary Si crystals 40 to 80 microns in particle size occupy at least 60% of the area occupied by all the primary Si crystals in the aluminum matrix, and eutectic Si crystals up to 10 microns in particle size occupy at least 60% of the area occupied by all the eutectic Si crystals in the matrix. The primary and eutectic Si crystals are uniformly dispersed throughout the matrix. A process for preparing the extruded aluminum alloy is also disclosed.

Abstract: Rolled aluminum alloy sheets having improved strength and formability are provided which are to be formed into parts for use in an application where a high strength is required after paint baking, for example, as automobile body sheets. The aluminum alloy has a composition consisting essentially of Si 1.2-2.5%, Mg 0.25-0.85%, Fe 0.05-0.4%, Cu 0.1-1.5%, and at least one of Mn 0.05-0.6%, Cr 0.05-0.3%, and Zr 0.05-0.15%, balance essentially aluminum.

Abstract: Structural streaking defects in anodized aluminum architectural sheet products are substantially reduced or eliminated in 1XXX and 5XXX type aluminum alloys by including therein 0.01 to 0.08% of chromium or manganese, preferably both. It is preferred to combine such with continuously casting the ingot under high chill rate conditions such as employing low liquid metal head within the direct chill mold.

Abstract: An aluminum offset coil, having a surface zone of a predominantly recrystallized globular, fine grain structure, and a core zone of a greatly work-hardened structure, for use in offset printing plates, and a process for its preparation.

Abstract: An improved aluminum base alloy product is disclosed, the product comprising 0 to 3.0 wt. % Cu, 0 to 1.5 wt. % Mn, 0.1 to 4.0 wt. % Mg, 0.8 to 8.5 wt. % Zn, at least 0.005 wt. % Sr, max. 1.0 wt. % Si, max. 0.8 wt. % Fe and max. 0.45 wt. % Cr, 0 to 0.2 wt. % Zr, the remainder aluminum and incidental elements and impurities.

Abstract: A substantially amorphous or microcrystalline Al-based alloy, wherein said Al-based alloy is represented by the formula:Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.ein which:a+b+c+d+e=10050.ltoreq.a.ltoreq.95 atom %0.ltoreq.b.ltoreq.40 atom %0.ltoreq.c.ltoreq.15 atom %0.ltoreq.d.ltoreq.20 atom %0.ltoreq.e.ltoreq.3 atom %wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof, X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn and/or Ni, the total amount of these elements is at least 12 wt % of the alloy.

Abstract: A high corrosion resistant aluminum alloy sheet useful in the manufacture of containers for saline food and beverage, especially suited for easy opening can end manufacturing, which is made of an aluminum alloy consisting essentially of, by weight percentagesMg: from 0.50 to 2.0%Si: from 0.10 to 0.70%Mn: from 0.30 to 1.5%Cu: from 0.10 to 1.0%and the balance being essentially aluminum, the spontaneous electrode potential of the sheet being in the range of from -700 to -630 mV in a 0.1% sodium chloride solution at 25.degree. C., against an AgCl reference electrode. The aluminum alloy sheet is fabricated through a series of steps of hot rolling a cast ingot with the foregoing composition; intermediate cold rolling to an intermediate thickness which is at least one and a half times a final thickness; heating to a temperature of 500.degree. C. or higher; then rapidly cooling from the temperature; and then final cold rolling.

Abstract: Corrosion resistance in a brazed aluminum product is improved by subjecting the product to a heat treatment at a temperature of 300.degree. F. to 800.degree. F. for at least about one hour, preferably preceded by cooling the product to a temperaure below the temperature ultimately selected for the treatment, and in any event below about 550.degree. F. The useful life of brazed products such as automotive radiators is increased several times as a result of this treatment.

Abstract: Disclosed is a metal alloy product having increased resistance to fatigue crack growth and having coarse grains distributed in a fine grain structure, the coarse grains having a different alloy composition from the fine grain structure.

Abstract: An aluminum alloy consisting essentially of about the following percentages of materials:Si=14 to 18Fe=0.4 to 2Cu=4 to 6Mg=up to 1Ni=4.5 to 10P=0.001 to 0.1 (recovered)remainder grain refiner, Al and incidental impurities.

Abstract: The present invention provides a low density aluminum-base alloy, consisting essentially of the formula Al.sub.bal Zr.sub.a Li.sub.b Mg.sub.c T.sub.d, wherein T is at least one element selected from the group consisting of Cu, Si, Sc, Ti, V, Hf, Be, Cr, Mn, Fe, Co and Ni, "a" ranges from about 0.25-2 wt %, "b" ranges from 2.7-5 wt %, "c" ranges from about 0.5-8 wt %, "d" ranges from about 0.5-5% and the balance is aluminum. The alloy has a primary, cellular-dendritic, fine-grained, supersaturated aluminum alloy solid solution phase with intermetallic phases of the constituent elements uniformly dispersed therein. A consolidated article can be produced by compacting together particles composed of the aluminum alloy of the invention in a vacuum at elevated temperature. The compacted alloy is solutionized by heat treatment, quenched in a fluid bath, and optionally, stretched and aged.

Abstract: A method including providing aluminum having particles for stimulating nucleation of new grains, and deforming the aluminum under conditions for causing recrystallization to occur during deformation or thereafter, without subsequent heating being required to effect recrystallization.

Abstract: An abrasion resistant aluminum alloy characterized in that the aluminum alloy has a chemical composition basically containing 7.5-15 wt % of Si, 3.0-6.0 wt % of Cu, 0.3-1.0 wt % of Mg, 0.25-1.0 wt % of Fe, 0.25-1.0 wt % of Mn, and the balance of Al and impurities, and an alloy structure with a primary Si crystal size smaller than 80 microns, a Si-Mn-Fe compound grain size smaller than 120 microns, and an alpha-Al phase size smaller than 100 microns.

Abstract: This invention relates to a superplastic aluminum alloy comprising Mg, Cu, and at least one of Mn, Cr and Zr. The alloy has an elongation substantially of from 330% to 800% and can be readily produced.

Abstract: Aluminum alloys having compositions within the ranges (in Wt %) 0.2 to 3 lithium -0 to 4 magnesium -0.4 to 5 zinc -0 to 2 copper -0 to 0.2 zirconium -0 to 0.5 manganese -0 to 0.5 nickel -0 to 0.4 chromium-balance aluminum. The alloys are precipitation hardenable and exhibit a range of properties, according to heat treatment, which made them suitable for engineering applications where light weight and high strength are necessary.

Abstract: A metallurgical method including cooling molten aluminum particles and consolidating resulting solidified particles into a multiparticle body, wherein the improvement comprises the provision of greater than 0.15% of a metal which diffuses in the aluminum solid state at a rate less than that of Mn.Aluminum containing greater than 0.15% of a metal which diffuses in the aluminum solid state at a rate less than that of Mn.

Abstract: Aluminum armor plate containing relatively high amounts of magnesium, 6-10%, along with about 0.1-1% manganese and up to 0.23% chromium is made by cold rolling aluminum alloy rolling stock to a cold reduction of at least 10% with or without prior hot rolling. Susceptibility to stress conversion cracking is overcome by heating the alloy to an elevated temperature of typically 600.degree. or 700.degree. F. or more followed by cooling the alloy at a controlled cooling rate of at least 10.degree. F. per minute. The heating and the cooling precede the cold rolling operation and may be associated with hot rolling if such is employed.

Abstract: Rivets for use in the aircraft industry are made from a wrought aluminum alloy (Material No. 3.1324 in accordance with DIN). As that alloy will precipitation-harden at room temperature, the rivets must be closed immediately after they have been annealed and quenched. The time in which the rivets can be deformed can be extended to as much as one week if the rivets are stored below -17.degree. C. In order to overcome said disadvantages in the processing of the rivets, 0.002 to 0.3% cadmium is added to the wrought aluminum alloy. The resulting modified material exhibits a delayed precipitation hardening at room temperature and even when it is fully precipitation-hardened has a very high ductility. For this reason the precipitation hardening will not impose restrictions as regards the time in which rivets made of said alloy can be closed.

Abstract: Aluminum alloy sheet constituted of an alloy containing 0.65-0.79% Cu, 0.62-0.82% Mg, and 0.60-1.0% Si, produced by the successive steps of casting, homogenizing, cold rolling and solution-heat-treating, the sheet having strength and formability suitable for forming into automotive body members and being age-hardenable under paint-baking conditions.

Abstract: A high strength, aluminum alloy sheet having good formability is disclosed which is particularly suitable for forming can-body parts and can-end parts, which sheet has received a final cold rolling reduction of at least 50% and consists essentially of Mn 0.30 to 1.50 wt. %, Mg 0.50 to 2.00 wt. %, preferably 0.50 to 1.25 wt. %, Si 0.52 to 1.00 wt. % and the balance being Al and incidental impurities. If required, the aluminum alloy forming sheet may also, in addition to the above elements, contain at least one component selected from the group consisting of Fe, Cu, Cr, Zn and Ti in specified ranges.The alloy sheet was produced by a specially prescribed production method.

Abstract: An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.5 percent lithium, 0.6 percent magnesium, 1.8 percent copper, 0.12 percent zirconium with the balance being aluminum and trace elements.

Abstract: The present invention relates to substantially amorphous or microcrystalline aluminium-base alloys.Such alloys are of the following chemical composition:Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.ein which:50.ltoreq.a.ltoreq.95 atom %M representing one or more metals of the group Mn, Ni, Cu, Zr, Ti, V, Cr, Fe and Co with:0.ltoreq.b.ltoreq.40 atom %M' representing Mo and/or W with:0.ltoreq.c.ltoreq.15 atom %X representing one or more elements of the group Ca, Li, Mg, Ge, Si and Zn, with:0.ltoreq.d.ltoreq.20 atom %Y representing the inevitable production impurities such as O, N, C, H, He, Ga, etc . . . , the proportion of which does not exceed 3 atom %.The alloys according to the invention can be produced by means of known methods in the form of wires, strips, bands, sheets or powders in the amorphous or microcrystallized state, the grain size of which is less than 1000 nm, preferably 100 nm.

Abstract: Improved aluminum alloy products are fabricated from an improved alloy broadly containing 0.4 to 1.2% silicon, 0.5 to 1.3% magnesium, 0.6 to 1.1% copper and 0.1 to 1% manganese. The alloy is treated at very high temperatures, approaching the solidus or initial melting temperature, to provide the improved performance. Thereafter, the alloy is shaped as by rolling, extruding, forging and other known aluminum wrought product-producing operations. In the solution heat treated, quenched and artificially aged temper products so produced exhibit very high strength in comparison with 6XXX aluminum alloys, together with very high toughness and impact and dent resistance along with substantial corrosion resistance properties. In addition, the artificial aging response of the improved products enables use of high temperature, low cost aging treatments without risk of overshooting or undershooting the required or desired properties.