Abstract: Strength and ductility for a aluminum-lithium alloy wrought product in the transverse direction is improved by subjecting these types of alloys to improved T8 temper practice. The wrought product, after solution heat treating and quenching is subjected to a multiple step stretching sequence prior to aging, the total percent reduction for the multiple step stretching sequence ranging between 1 and 20 percent reduction. In the multiple step stretching sequence, each of the stretching steps may have the same or different amounts of percent reduction to achieve the desired total percent reduction. An aluminum-lithium alloy wrought product subjected to the improved T8 temper practice has increased tensile yield stress and percent elongation in its transverse direction to facilitate commercial application of the product in high strength applications.

Abstract: An improved aluminum alloy armoured cable wrap has been produced which permits the use of less aluminum alloy in the cable wrap thereby achieving lighter construction, while meeting or exceeding strength and flexibility requirements. The armoured cable wrap is made from aluminum alloy strip material formed of an aluminum alloy containing about 2.8-3.5 percent by weight Mg, about 0.25-0.70 percent by weight Mn and about 0.15-0.35 percent by weight Cr. Up to 0.5 percent by weight of Cu may also be added. The strip material is heat treated preferably to an Ultimate Tensile Strength of at least 265 MPa.

Abstract: This invention relates to aluminium alloys containing lithium which are particularly suitable for aerospace construction in that they possess improved cold rolling characteristics optionally with improved damage tolerance. A method of producing sheet or strip material is described which comprises the steps of: (a) providing, in a condition suitable for hot rolling, a billet of an alloy of the composition in weight percent: lithium 1.9 to 2.6; magnesium 0.4 to 1.4; copper 1.0 to 2,2; manganese 9 to 0.09; zirconium 0 to 0.25; at least one other grain-controlling element 0 to 0.5; nickel 0 to 0.5; zinc 0 to 0.

Abstract: A method of producing aluminum can sheet having low earing characteristics. An aluminum alloy ingot is provided and is heated to a temperature between about 527.degree. to 571.degree. C. (980.degree. to 1060.degree. F.). After this, the ingot is hot rolled in a single-stand reversible hot mill to produce an intermediate gauge sheet. The intermediate gauge sheet is then cold rolled to produce a final gauge aluminum can sheet having low eating characteristics.

Abstract: A method of producing aluminum can sheet having high strength and low earing characteristics comprises providing an aluminum alloy ingot and then hot rolling the ingot in a single-stand hot reversing mill to produce a first intermediate gauge sheet. The first intermediate gauge sheet is then cold rolled to produce a second intermediate gauge sheet. This second intermediate gauge sheet is passed through a heat source as a single web so that the second intermediate gauge sheet is continuously annealed. After heating, the second intermediate gauge sheet is quenched and coiled again. Finally, the coiled second intermediate gauge sheet is cold rolled again to produce the final gauge aluminum can sheet having high strength and low earing characteristics.

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 aluminum alloy containing about 0.5 to 1.3% magnesium, about 0.4 to 1.2% silicon, about 0.6 to 1.2% copper, about 0.1 to 1% manganese, the balance substantially being aluminum along with impurities and incidental elements, is made into wrought wire, rod, bar or tube products by extrusion and cold working, preferably drawing, operations. The method includes extrusion within about 300.degree. or 400.degree. up to about 650.degree. or 700.degree. F. and even possibly up to 750.degree. or 800.degree. F. on a less preferred basis. Following extrusion, the product may be cold drawn either before or after, or both before and after, solution heat treatment and quenching. Rapid quenching is preferred. The product can then be artificially aged, for instance by heating to 375.degree. F. The resulting product has a fine grain size and consistent and good properties so as to be useful in a number of applications.

Abstract: A superplastic aluminum-based alloy material consisting of a matrix formed of aluminum or a supersaturated aluminum solid solution, whose average crystal grain size is 0.005 to 1 .mu.m, and particles made of a stable or metastable phase of various intermetallic compounds formed of the main alloying element (i.e., the matrix element) and the other alloying elements and/or of various intermetallic compounds formed of the other alloying elements and distributed evenly in the matrix, the particles having a mean particle size of 0.001 to 0.1 .mu.m. The superplastic aluminum-based alloy material is produced from a rapidly solidified material consisting of an amorphous phase, a microcrystalline phase or a mixed phase thereof by optionally heat treating the material at a prescribed temperature for a prescribed period of time and then subjecting it to a single or combined thermomechanical treatment. The superplastic aluminum-based alloy material of the present invention is suited for superplastic working.

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: A high-strength rolled sheet of an aluminum alloy having a composition represented by the general formula Al.sub.bal Ni.sub.a X.sub.b, Al.sub.bal Ni.sub.a X.sub.b M.sub.c or Al.sub.bal Ni.sub.a X.sub.b M.sub.c Q.sub.d, wherein X represents at least one element selected from among La, Ce, Mm, Ti and Zr; M represents at least one element selected from among V, Cr, Mn, Fe, Co, Y, Nb, Mo, Hf, Ta and W; Q represents at least one element selected from among Mg, Si, Cu and Zn; and a, b, c and d are, in atomic percentages, 2.ltoreq.a.ltoreq.10, 0.1.ltoreq.b.ltoreq.3.ltoreq.0.1.ltoreq.c.ltoreq.2 and 0.01.ltoreq.d.ltoreq.2, wherein intermetallic compounds crystallized therefrom have a maximum particle size of 10 .mu.m or less. The rolled sheet can be easily produced by subjecting a melt of an alloy having the above-described composition to rolling simultaneously with cooling and solidification to provide a rolled sheet and has high strength and rigidity and excellent heat resistance and ductility.

Abstract: A method of producing an aluminum-based alloy product having improved exfoliation resistance and fracture toughness which comprises providing an aluminum-based alloy composition consisting essentially of about 5.5-10.0% by weight of zinc, about 1.75-2.6% by weight of magnesium, about 1.8-2.75% by weight of copper with the balance aluminum and other elements. The aluminum-based alloy is worked, heat treated, quenched and aged to produce a product having improved corrosion resistance and mechanical properties. The amounts of zinc, magnesium and copper are stoichiometrically balanced such that after precipitation is essentially complete as a result of the aging process, no excess elements are present. The method of producing the aluminum-based alloy product utilizes either a one- or two-step aging process in conjunction with the stoichiometrically balancing of copper, magnesium and zinc.

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: An Al-based intermetallic compound in which a eutectic crystal type Al-CuMn intermetallic compound dispersion phase is dispersed in an Al-Cu intermetallic compound matrix phase. The content of Mn as a eutectic crystal-forming element contained in the dispersion phase is set in a range of from 5% by weight (inclusive) to 30% by weight (inclusive). In the course of solidification of the Al-Cu-Mn intermetallic compound, an infinite number of dispersion phases are first crystallized, and the matrix phase is then crystallized. This ensures that the matrix phase is formed into a fine crystal structure due to hindrance of the growth thereof by the dispersion phase, leading to increases in hardness and toughness of the resulting Al-based intermetallic compound. In another embodiment, the Al-based intermetallic compound contains peritectic type Al-based intermetallic dispersion phase, such as formed by Ta, dispersed in the intermetallic compound matrix phase.

Abstract: Disclosed are an aluminum alloy casting having a high strength and a high toughness, and a production process for the same. The aluminum alloy casting comprises silicon (Si) in an amount of 2.5 to 4.4% by weight, copper (Cu) in an amount of 1.5 to 2.5% by weight, magnesium (Mg) in an amount of 0.2 to 0.5% by weight and the balance of aluminum (Al), and a matrix thereof includes a dendrite which has a size of 30 micrometers or less. Since the Si addition amount is suppressed as less as possible and since the size of the dendrite is micro-fined in the aluminum alloy casting, the toughness is improved remarkably. Further, since the Cu and Mg are added in the predetermined addition amounts, the strength is enhanced in the aluminum alloy casting. In addition, a solution treatment which is employed in the production process can further enhance the strength of the aluminum alloy casting.

Abstract: A process for producing an amorphous alloy material characterized by imparting ductility to an amorphous alloy having a supercooled liquid region by giving a prescribed amount of strain at a prescribed strain rate to the alloy in the glass transition temperature region of the alloy. The amorphous alloy may be in the form of spherical or irregular-shaped powders or thin ribbons or in the form of primary consolidated shapes thereof or an amorphous alloy casting. The amount of strain and strain rate are preferably 50% or greater and 2.times.10.sup.-2 /sec or higher, respectively, and the worked amorphous alloy material is preferably allowed to cool in a furnace or spontaneously. Suitable examples of the amorphous alloy to be employed include Al-TM-Ln, Mg-TM-Ln, Zr-TM-Al and Hf-TM-Al alloys, wherein TM is a transition metal element and Ln is a rare earth metal element. The thus obtained amorphous alloy is greatly improved in the prevention of embrittlement in hot working peculiar to the alloy.

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 Al alloy extrusion material for the fuel-distributing pipe of automobile, consisting essentially of 0.3 to 1.0 wt. % of Si, 0.1 to 0.5 wt. % of Cu, 0.6 to 1.5 wt. % of Mg, 0.3 to 1.0 wt. % of Sn, 0.005 to 0.03 wt. % of Ti and the balance of Al and inevitable impurities and having uniformly dispersed Sn compounds with particle diameter of not more than 20 .mu.m and density of 20 to 700 grains/mm.sup.2 in the section perpendicular to the extrusion direction of material is disclosed, which is excellent in the chip separation property and the precision of cut face on cutting.

Abstract: Disclosed is a method of producing a forged and rolled Al-Zn-Cu-Mg alloy plate product having improved fatigue properties in the long transverse direction. The method comprises providing a body of an Al-Zn-Cu-Mg alloy, working said body by a forging operation to reduce its thickness in a C direction by at least 30% and rolling or working the forged body to provide a forged and rolled plate product having improved fatigue properties in the long transverse direction.

Abstract: A rapidly solidified, low density aluminum base alloy consists essentially of the formula Al.sub.bal Li.sub.a Cu.sub.b Mg.sub.c Zr.sub.d wherein "a" ranges from about 2.2 to 2.5 wt %, "b" ranges from about 0.8 to 1.2 wt %, "c" ranges from about 0.4 to 0.6 wt % and "d" ranges from about 0.4 to 0.8 wt %, the balance being aluminum plus incidental impurities. The alloy is especially suited to be consolidated to produce a strong, tough, low density aircraft landing wheel.

Abstract: The present invention provides a method for improving aluminum alloy plate product properties by delaying final stretching of the plate product. During processing of the product, a time interval or intentional delay is provided between the final cold rolling step and the final stretching step. By delaying the final stretching procedure, an aluminum alloy plate product is provided with an improved fracture toughness without significant decrease in strength values. The method of intentionally delaying final stretching is particularly adapted for 2000 series aluminum alloys.

Abstract: A process for manufacturing an aluminum alloy material having excellent shape fixability and bake hardenability, the process comprising: conducting semicontinuous casting of an aluminum alloy comprising 0.4 to 1.7% (wt.%) Si and 0.2 to 1.4% Mg, optionally further comprising 0.05% or less Ti and 100 pm or less B and optionally further comprising at least one member selected from the group of 1.00% or less Cu, 0.50% or less Mn, 0.20% or less Cr and 0.20% or less V, with the balance consisting of Al and unavoidable impurities, subjecting the cast alloy to conventional hot rolling; conducting solution heat treatment by holding the hot-rolled alloy at a temperature of from 450 to 580.degree. C. for 10 minutes or less; conducting first-stage cooling of the alloy at a cooling rate of 200.degree. C./min or more to a quenched temperature in the range of from 60 to 250.degree. C.; and subjecting the alloy to second-stage cooling at a cooling rate selected within the zone ABCD shown in the attached FIG. 2.

Abstract: Disclosed herein is an aluminum alloy plate for discs superior in Ni-P platability and adhesionability of plated layer and having a high surface smoothness with a minimum of nodules and micropits, said aluminum alloy plate comprising an aluminum alloy containing as essential elements Mg in an amount more than 3% and equal to or less than 6%, Cu in an amount equal to or more than 0.03% and less than 0.3%, and Zn in an amount equal to or more than 0.03% and equal to or less than 0.4%, and as impurities Fe in an amount equal to or less than 0.07% and Si in an amount equal to or less than 0.06% in the case of semi-continuous casting, or Fe in an amount equal to or less than 0.1% and Si in an amount equal to or less than 0.1% in the case of strip casting, and also containing Al-Fe phase intermetallic compounds, with the maximum size being smaller than 10 .mu.m and the number of particles larger than 5 .mu.m being less than 5 per 0.2 mm.sup.

Abstract: The present invention provides a method of producing a hardened aluminum alloy sheet having superior thermal stability, the method comprising the steps of: homogenizing an ingot of an aluminum alloy consisting essentially of, in weight percentage, 3.0 to 6.0% Mg and 0.4 to 0.8% Mn, with the balance being Al and incidental impurities; hot rolling the homogenized ingot to a sheet; cold rolling the hot-rolled sheet at a rolling reduction of at least 20%; intermediate heat treating the cold-rolled sheet at 200.degree. to 250.degree. C. for one hour or more; and final cold rolling the intermediate heat-treated sheet at a reduction of at least 50%. In this process, the aluminum ingot may further contain from 0.05 to 0.4% Cu with or without 0.05 to 0.5% Si, 0.1 to 0.5% Fe, 0.01 to 0.05% Ti and 0.0001 to 0.0010% B. Further, the above homogenizing and hot rolling steps may be replaced by the steps of homogenizing, hot rolling to a sheet thickness of 2 to 6 mm, cold rolling and annealing for recrystallization.

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: Aluminum based alloy primarily for use in aircraft and aerospace components consists essentially of the composition: 2.60 to 3.30 weight percent copper, 0.0 to 0.50 weight percent manganese, 1.30 to 1.65 weight percent lithium, 0.0 to 1.8 percent magnesium, and from 0.0 to 1.5 weight percent of grain refinement elements selected from the group consisting of zirconium, and chromium. Up to about 0.5 wt. % zinc and up to about 1.5 wt. % titanium may also be present. Minor impurities may also be present. These alloys exhibit an improved combination of characteristics including low density, high strength, high corrosion resistance and good fracture toughness.

Abstract: A component composed of a rapidly solidified aluminum-lithium alloy is subjected to thermal treatment at a temperature greater than 500.degree. C. for a time period greater than 5 hours under a protective atmosphere. Thus case toughened, the component exhibits notched impact toughness from 40 to 250% greater than that exhibited prior to the thermal treatment.

Abstract: A rapidly solidified zirconium containing aluminum lithium alloy powder consisting essentially of the formula Al.sub.bal Li.sub.a Cu.sub.b Mg.sub.c Zr.sub.d where "a" ranges from 2.1 to 3.4 wt %, "b" ranges from about 0.5 to 2.0 wt %, "c" ranges from 0.2 to 2.0 wt % and "d" ranges from greater than about 0.6 to 1.8 wt %, the balance being aluminum. The powder is degassed in a vacuum at a temperature of at least about 450.degree. C. Components consolidated from the powder exhibit high tensile strength and elongation together with excellent notched impact toughness.

Abstract: An Al-Li alloy consists essentially of the formula Al.sub.bal Li.sub.a Cu.sub.b Mg.sub.c Zr.sub.d wherein "a" ranges from about 1.9 to 3.4 wt %, "b" ranges from about 0.5 to 2.0 wt %, "c" ranges from 0.2 to 2.0 wt % and "d" ranges from about 0.3 to 1.2 wt %, the balance being aluminum. The alloy is solidified at a cooling rate of about 10.sup.3 .degree.-10.sup.4 .degree. C./sec by spray forming, and is characterized by a substantial absence of prior particle boundaries.

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 alloy product having improved combinations of strength, density, toughness and corrosion resistance, said alloy product consisting essentially of about 7.6 to 8.4% zinc, about 1.8 to 2.2% magnesium, about 2 to 2.6% copper and at least one element selected from zirconium, vanadium and hafnium present in a total amount not exceeding about 0.5%, preferably about 0.05 to 0.25% zirconium, the balance aluminum and incidential elements and impurities. The alloy product, suitable for aerospace applications, exhibits high yield strength, at least about 10% greater yield strength than its 7X50-T6 counterpart, with good toughness and corrosion resistance properties typically comparable to or better than those of its 7X50-T76 counterpart. Upper wing members made from this alloy typically have a yield strength over 84 ksi, good fracture toughness and an EXCO exfoliation resistance level of "EC" or better, typically "EB".

Abstract: A cast hypereutectic Al-Si alloy with from 12-15% Si, having excellent wear resistance and machinability, improved fatigue strength and good levels of ambient and elevated temperature properties is provided, as well as a method of producing such alloy. The alloy and a melt used in the method contains Sr in excess of 0.10% and Ti in excess of 0.005%, the alloy further comprising: Cu 1.5 to 5.5%, Ni 1.0 to 3.00%, 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%, Na 0 to 0.01%, B (elemental) 0.05% maximum, Ca 0.003% maximum, P 0.003% maximum. Others 0.05 maximum each, the balance, apart from incidental impurities, being Al. The level of Sr in excess of 0.10% and Ti in excess of 0.

Abstract: A method of producing a sheet product and improved products having improved levels of toughness and fatigue crack growth resistance at good strength levels. The method comprises providing an aluminum base alloy containing 4 to 4.5% Cu, 1.2 to 1.5% Mg, 0.4 to 0.6% Mn, 0.12% max. Fe, 0.1% max. Si, the remainder aluminum, incidental elements and impurities and hot rolling the alloy, heating the alloy to above 910.degree. F. and additionally hot rolling it in a range of about 600.degree. to 900.degree. F., solution heat treating, preferably for a time of less than about 15 minutes at a solution heat treating temperature, and rapidly cooling and naturally aging. The invention products have very good combinations of strength together with high fracture toughness or low fatigue crack growth rate, or both, making them well suited for aerospace applications such as fuselage skin. The products preferably include a corrosion protecting cladding of aluminum or aluminum alloy.

Abstract: Aluminum-base alloys containing Cu, Li, Zn, Mg and Ag are disclosed which possess highly desirable properties, such as relatively low density, high modulus, high strength/ductility combinations, strong natural aging response with and without prior cold work, and high artificially aged strength with and without prior cold work. In addition, the alloys possess good weldability, corrosion resistance, cryogenic properties, and elevated temperature properties. The alloys may comprise from about 1 to about 7 weight percent Cu, from about 0.1 to about 4 weight percent Li, from about 0.01 to about 4 weight percent Zn, from about 0.05 to about 3 weight percent Mg, from about 0.01 to about 2 weight percent Ag, from about 0.01 to about 2 weight percent grain refiner selected from Zr, Cr, Mn, Ti, Hf, V, Nb, B and TiB.sub.2, and the balance Al along with incidental impurities. Preferred alloys comprise from about 3.0-6.5 weight percent Cu, from about 0.5-2.6 weight percent Li, from about 0.

Abstract: The invention relates to materials for coating metal alloys or metals, which materials are intended to improve the performance of said alloys or metals.These materials have a composition which corresponds to the general formula Al.sub.a Cu.sub.b Fe.sub.c X.sub.d I.sub.e, wherein X represents one or more elements chosen from V, Mo, Ti, Zr, Nb, Cr, Mn, Ru, Rh, Ni, Mg, W, Si and the rare earths, and I represents the inevitable manufacturing impurities, e.ltoreq.2, 14.ltoreq.b.ltoreq.30, 7.ltoreq.c.ltoreq.20, O.ltoreq.d.ltoreq.10, with c+d.ltoreq.10 and a+b+c+d+e=100% of the number of atoms, and they contain at least 40% by mass of an icosahedral quasi-crystalline phase and/or a decagonal quasi-crystalline phase and have a grain size greater than 1,000 nm in the quasi-crystalline phase.These materials are useful, in particular, for coating copper, aluminium alloys or copper alloys in the manufacture of cooking utensils, anti-friction bearings, anti-wear surfaces and reference surfaces.

Abstract: An aluminum based alloy useful in aircraft and aerospace structures which has low density, high strength and high fracture toughness consists essentially of the following formula:Cu.sub.a Li.sub.b Mg.sub.c Ag.sub.d Zr.sub.e Al.sub.balwherein a, b, c, d, e and bal indicate the amount in wt. % of alloying components, and wherein 2.4<a<3.5, 1.35<b<1.8, 0.25<c<0.65, 0.25<d<0.65 and 0.08<e<0.25, and the alloy has a density of 0.0945 to 0.0960 lbs/in.sup.3. Preferably, the relationship between the copper and lithium components also meets the following tests:more preferably the relationship meets the following tests:6.5<a+2.5b<7.5, 2b-0.8<a<3.75b-1.9.

Abstract: A method of improving strength in aluminum alloys. The method involves solution heat treating an aluminum alloy product, quenching the alloy product, warm working the alloy product without a pre-aging step, and aging the alloy product at 250.degree.-400.degree. F. (121.degree.-204.degree. C.). The method may be used on forgings, to impart T8-type hardness to alloys that previously could only obtain such hardness levels in non-forging applications, such as by using stretch/cold working techniques.

Abstract: Disclosed is a method for making an aluminum alloy sheet having controlled levels of strength properties for forming into a container panel. A body of an aluminum alloy consisting essentially of 0.45 to 0.60 wt. % Cu, 1.1 to 1.7 wt. % Mg, 0.3 to 0.6 wt. % Si, 0.3 to 0.55 wt. % Fe, 0.5 to 1.2 wt. % Mn, the remainder aluminum, incidental elements and impurities, is hot rolled to a gauge in the range of 0.12 to 0.16 inch to provide a hot rolled product. The hot rolled product is cold rolled to provide a reduction of 50 to 80% in thickness, then solution heat treated in a range of 850.degree. to 110.degree. F. and rapidly cooled before cold rollign to a final sheet gauge by providing a reduction of 30 to 90% in thickness.

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 component consolidated from a rapidly solidified aluminum-lithium alloy containing copper, magnesium and zirconium is subjected to a preliminary aging treatment at a temperature of about 400.degree. C. to 500.degree. C. for a time period of about 0.5 to 10 hours; quenched in a fluid bath; and subjected to a final aging treatment at a temperature of about 100.degree. C. to 250.degree. C. for a time period ranging up to about 40 hours. The component exhibits increased strength and elongation, and is especially suited for use in lightweight structural parts for land vehicles and aerospace applications.

Abstract: Shaped bodies which are improved in high-temperature strength, resistance to thermal shock and fatigue limit can be made of a lightweight cast material which consists mainly of aluminum and in addition contains 5 to 15% by weight magnesium silicide.

Abstract: An improved method of treating an ingot to be made into lithoplate. The method also includes (a) providing a non-heat treatable aluminum alloy containing magnesium; (b) homogenizing said alloy; (c) rolling said alloy to form a sheet or plate; (d) heating said sheet or plate for a temperature and time sufficient to permit magnesium to migrate to the surface of said metal; and (e) cold rolling said sheet or plate stock to a finished gauge workpiece.

Abstract: The invention comprises an alloy having improved intermediate temperature properties at temperatures up to about 316.degree. C. The alloy contains (by weight percent) about 1-6% X contained as an intermetallic phase in the form of Al.sub.3 X. X is at least one selected from the group consisting of Nb, Ti and Zr. The alloy also contains 0.1-4% strengthener selected from the group consisting of Si and Mg. In addition, the alloy contains about 1-4% C and 0.1-2% O present as aluminum carbides and oxides for grain stabilization.

Abstract: An aluminum-lithium based alloy which comprises 10-20 wt. % silicon, 1.5-5.0 wt. % copper, 1.0-4.0 wt. % lithium, 0.45-1.5 wt. % magnesium, 0.01-1.3 wt. % iron, 0.01-0.5 wt. % manganese, 0.01-1.5 wt. % nickel, 0.01-1.5 wt. % zinc, 0.01-0.5 wt. % silver, 0.01-0.25 wt. % titanium and the balance aluminum. The alloy is utilized to cast high temperature assemblies including pistons which have a reduction in density and similar mechanical properties including tensile strengths to alloys presently used.

Abstract: The alloy of the invention has improved intermediate temperature properties at temperatures up to about 482.degree. C. The alloy contains (by weight percent) a total of about 6-12% X contained as an intermetallic phase in the form of Al.sub.3 X. X is selected from the group consisting of Nb, Ti and Zr. The alloy also contains about 0.1-4% strengthener selected from the group consisting of Co, Cr, Mn, Mo, Ni, Si, V, Nb when Nb is not selected as X and Zr when Zr is not selected as X. In addition, the alloy contains about 1-4% C and about 0.1-2% O.

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: Disclosed is a method of making lithium-containing aluminum base alloy extrusion having at least a section thereof having a low aspect ratio, the extrusions having improved properties in sections thereof having the low aspect ratio. The method comprises providing a body of a lithium-containing aluminum alloy, extruding a low aspect ratio extrusion section, the aspect ratio being in the range of 1 to 2.5, and maintaining the body in a temperature range of 400.degree. to 1000.degree. F. and at least a 4:1 extrusion reduction during said extrusion step, the extrusion section having tensile yield strength of at least 60 ksi and having an ultimate yield strength of at least 4.5 ksi greater than the tensile yield strength.

Abstract: Disclosed is an aluminum base alloy suitable for forming into a wrought product having improved combinations of strength, corrosion resistance and fracture toughness. The alloy is comprised of 0.2 to 5.0 wt. % Li, 0.05 to 6.0 wt. % Mg, at least 2.45 wt. % Cu, 0.01 to 0.16 wt. % Zr, 0.05 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities.

Abstract: An aluminum base alloy suitable for forming into a wrought product having improved combinations of strength and fracture toughness is disclosed. The product is comprised of 0.2 to 3.0 wt. % Li, 0.1 to 3 wt. % Mg, 0.2 to 3 wt. % Cu, 5.1 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, at least one of the elements selected from the group Cr, V, Hf, Mn, Ti, Ag, In and Zr, with Cr, V, Ti and Zr in the range of 0.01 to 0.2 wt. %; Hf and Mn up to 0.6 wt. % each, Ag in the range of 0.05 to 1 wt. % and in the range of 0.01 to 0.5 wt. %, the balance aluminum and incidental impurities.

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: A 7000 series aluminum alloy characterized by high strength, high fatigue resistance and high fracture toughness consists essentially of 5.9 to 6.9% zinc, 2.0 to 2.7% magnesium, 1.9 to 2.5% copper, 0.08 to 0.15% zirconium, a maximum of 0.15% iron, maximum of 0.12% silicon, a maximum of 0.06% titanium, a maximum of 0.04% chromium, a maximum of 0.05% for each of any other trace elements present in the alloy, the total of the other trace elements in the allow being a maximum of 0.15%, the balance of the alloy being aluminum. The foregoing alloy is hot worked to provide a wrought product, such as an extruded or plate product, in which recrystallization is held to a minimum. The wrought product is subjected to a solution treatment, quench, and elevated temperature aging cycle, normally until the product is at or near its maximum strength.