Abstract: The present disclosure relates generally to the field of welding filler metals, and more particularly to compositions suitable for welding or brazing aluminum alloys. In an embodiment, an aluminum-silicon-magnesium alloy, includes a magnesium content between approximately 0.1 wt % and approximately 0.5 wt %, wherein substantially all of the magnesium content is present as magnesium silicide. The alloy includes a silicon content between approximately 5.0 wt % and approximately 6.0 wt %, wherein at least 4.75 wt % of the silicon content is present as free silicon. The alloy includes one or more of iron, copper, manganese, zinc, and titanium. The alloy further includes a remainder of aluminum and trace components.

Abstract: Disclosed herein are embodiments of aluminum-based alloys having improved intergranular corrosion resistance. Methods of making and using the disclosed alloy embodiments also are disclosed herein.

Abstract: The aluminum alloy sheet of the present invention is a specific 6000-series aluminum alloy sheet in which the total sum (total amount) of Mg and Si existing in specific aggregates of atoms (clusters) is regulated and the total sum of Mg and Si existing in the aggregates of atoms is ensured so as to be balanced with the total amount of Mg and Si solid-solutionized in the matrix, and thus BH response (bake hardenability) after natural aging at room temperature and proof strength after BH treatment (bake hardening treatment) are further improved.

Abstract: One aspect generally relates to a Cr, Ni, Mo and Co alloy, with tightly controlled levels of impurities. One aspect relates to an alloy including about 10 to about 30 weight % Cr, about 20 to about 50 weight % Ni, about 2 to about 20 weight % Mo, about 10 to about 50 weight % Co, and less than about 0.01 weight % Al, wherein each weight % is based on the total weight of the alloy.

Abstract: An aluminum-alloy-clad plate which includes a plurality of superposed aluminum alloy layers and which has undergone a diffusion heat treatment. Aluminum alloy layers having specific compositions are superposed so that any adjoining two of these differ in the content of Mg or Zn, and are subjected to a diffusion heat treatment to give a structure which has fine crystal grain diameters and Mg/Zn mutual diffusion regions and which has specific DSC properties. Thus, both higher strength and high formability are imparted.

Abstract: 3000-series aluminum alloy sheet which has a high strength enabling application to automobile body panel and excellent in bendability and shape freezability is provided.

Abstract: A casting Al—Si—Mg-based aluminum alloy comprising by mass 12.0-14.0% of Si, 1.5-4.0% of Mg, and 0.10% or less of Mn, the balance being Al and inevitable impurities, and having excellent specific rigidity, strength and ductility, and its cast member.

Abstract: To obtain an Al—Mg—Si based aluminum alloy extruded material with a smooth surface and no burning without inhibiting the productivity. An aluminum alloy billet includes: Si: 2.0 to 6.0% by mass; Mg: 0.3 to 1.2% by mass; and Ti: 0.01 to 0.2% by mass, a Fe content being restricted to 0.2% or less by mass, with the balance being Al and inevitable impurities. The aluminum alloy billet is subjected to a homogenization treatment by keeping at 500 to 550° C. for 4 to 15 hours. The billet is forcibly cooled to 250° C. or lower at an average cooling rate of 50° C./hr or higher. Then, the billet is subjected to hot-extruding at an extrusion rate of 3 to 10 m/min by being heating at 450 to 500° C. The extruded material is forcibly cooled at an average cooling rate of 50° C./sec or higher and then subjected to an aging treatment. The extruded material can be manufactured that has its surface having a ten-point average roughness Rz of 80 ?m or less.

Abstract: Welding wires and methods for welding metal work pieces using the welding wires are provided. The welding wires are composite materials comprising a metal alloy and high temperature nanoparticles dispersed in the metal alloy.

Abstract: An electrical power connector fabrication method includes employing a cold drawing technique by using a series of dies to repeatedly draw a metal round rod into a thin thickness conducting contact bar, processing one end of the thin thickness conducting contact bar into a mating contact portion, stamping a part of the thin thickness conducting contact to form a mounting portion, cutting off the thin thickness conducting contact bar to obtain a finished metal contact formed of the mounting portion and the mating contact portion, repeating the aforesaid steps to obtain a large amount of metal contacts, attaching individual metal contacts to respective locating notches of a contact material strip, using an injection molding technique to mold electrically insulative housings on the metal contacts to form a number of electrical power connectors at a time, and then removing the contact material strip from the metal contacts.

Abstract: The present invention relates to an aluminum alloy having low density and enhanced heat resistance. An aluminum alloy having improved high temperature physical properties comprises: magnesium (Mg) in an amount of about 7 to about 11 wt %, silicon (Si) in an amount of about 4 to about 8 wt %, copper (Cu) in an amount of about 0.5 to about 2 wt % and manganese (Mn) in an amount of about 0.3 to about 0.7 wt %, and a balance of aluminum based on the total weight of the aluminum alloy. Vehicle parts such as a piston, a housing and/or a bed plate of high power engine, to which the aluminum alloy may be applied, are provided as well.

Abstract: An aluminum alloy comprising more than 3.5% and up to 6.0% of Mg, 0.02 to 1.0% inclusive of Cu, 0.02 to 0.1% inclusive of Cr, and a remainder made up by Al and unavoidable impurities, wherein the contents of Si and Fe in the unavoidable impurities are limited to 0.05% or less and 0.05% or less, respectively, and wherein the number of intermetallic compound particles contained in the aluminum alloy and having a maximum length of 4 ?m or more is 50 particles or less per 1 mm2 of an arbitrary cross-sectional area of the aluminum alloy. An aluminum alloy is provided, which has excellent anodic-oxidation-treatability and can be used for providing an anodic-oxidation-treated aluminum alloy member having high withstand voltage properties and such excellent heat resistance that the occurrence of cracking under high temperatures conditions can be prevented.

Abstract: The present disclosure provides improved processes and compositions for continuously casting aluminum alloys. The resulting aluminum alloy sheet is useful for container body stock.

Abstract: New 6xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 6xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 6xxx aluminum alloy bodies may realize improved strength and other properties.

Abstract: Disclosed are: a casting aluminum alloy that is excellent in elongation as alternative properties of a high cycle fatigue strength and a thermal fatigue strength and is suitably usable for a casting for which both of the excellent high cycle fatigue strength and the excellent thermal fatigue strength are required, for example, an internal combustion engine cylinder head; a casting made of the aluminum alloy; a manufacturing method of the casting; and further, an internal combustion engine cylinder head composed of the aluminum alloy casting and manufactured by the manufacturing method of the casting. The casting aluminum alloy contains, in terms of mass ratios, 4.0 to 7.0% of Si, 0.5 to 2.0% of Cu, 0.25 to 0.5% of Mg, no more than 0.5% of Fe, no more than 0.5% of Mn, and at least one component selected from the group consisting of Na, Ca and Sr, each mass ratio of which is 0.002 to 0.02%.

Abstract: An aluminum alloy product and method for producing the aluminum alloy product that, in some embodiments, includes an aluminum alloy strip having at least 0.8 wt. % manganese, at least 0.6 wt % iron, or at least 0.8 wt. % manganese and at least 0.6 wt % iron. A near surface of the aluminum alloy strip, in some embodiments, is substantially free of large particles having an equivalent diameter of at least 50 micrometers and includes small particles. Each small particle, in some embodiments, has a particular equivalent diameter that is less than 3 micrometers, and a quantity per unit area of the small particles having the particular equivalent diameter is at least 0.01 particles per square micrometer at the near surface of the aluminum alloy strip.

Abstract: An aluminum alloy material contains Si: 1.0 mass % to 5.0 mass % and Fe: 0.01 mass % to 2.0 mass % with balance being Al and inevitable impurities, wherein 250 pcs/mm2 or more to 7×105 pcs/mm2 or less of Si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material, while 100 pcs/mm2 to 7×105 pcs/mm2 of Al-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material. An aluminum alloy structure is manufactured by bonding two or more members in vacuum or a non-oxidizing atmosphere at temperature at which a ratio of a mass of a liquid phase generated in the aluminum alloy material to a total mass of the aluminum alloy material is 5% or more and 35% or less.

Abstract: The present invention relates to an automotive clad sheet product comprising a core layer and at least one clad layer wherein the core comprises an alloy of the following composition in weight %: Mg 0.45-0.8, Si 0.45-0.7, Cu 0.05-0.25, Mn 0.05-0.2, Fe up to 0.35, other elements (or impurities) <0.05 each and <0.15 in total, balance aluminum; and the at least one clad layer comprises an alloy of the following composition in weight %: Mg 0.3-0.7, Si 0.3-0.7, Mn up to 0.15, Fe up to 0.35, other elements (impurities) <0.05 each and <0.15 in total, balance aluminum. The clad automotive sheet product provides excellent hemmabtlity which does not substantially change over time and yet also provides a good age-hardening response after bake hardening.

Abstract: Disclosed is an aluminum alloy material for a heat exchanger fin, the aluminum alloy material containing Si: 1.0% to 5.0% by mass, Fe: 0.1% to 2.0% by mass, and Mn: 0.1% to 2.0% by mass with balance being Al and inevitable impurities, wherein 250 pieces/mm2 or more to 7×104 pieces/mm2 or less of Si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 ?m are present in a cross-section of the aluminum alloy material; and wherein 10 pieces/mm2 or more and 1000 pieces/mm2 or less of the Al—Fe—Mn—Si-based intermetallic compounds having equivalent circle diameters of more than 5 ?m are present in a cross-section of the aluminum alloy material. The aluminum alloy material may further contain one or more additive elements of Mg, Cu, Zn, In, Sn, Ti, V, Zr, Cr, Ni, Be, Sr, Bi, Na, and Ca.

Abstract: An aluminum alloy and recycle method are provided in which the recycled used beverage containers form an alloy composition useful with relatively minor or no compositional adjustments for body, end and tab stock, apart from magnesium levels.

Abstract: In a first aspect, the invention provides aluminium alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium. In a second aspect, the invention provides a composite aluminium sheet product comprising a core layer and at least one clad layer wherein the at least one clad layer is an aluminium alloy comprising the following composition, all values in weight %: Si 0.25-1.5 Cu 0.3-1.5 Fe up to 0.5 Mn up to 0.1 all other elements including Mg being incidental and present (if at all) then in an amount less than or equal to 0.05 individually, and less than or equal to 0.15 in aggregate, the balance being aluminium.

Abstract: The invention relates to an age-hardenable aluminium alloy product for structural members having a chemical composition including, in wt. %: Cu about 3.6 to 6.0%, Mg about 0.15 to 1.2%, Ge about 0.15 to 1.1%, Si about 0.1 to 0.8%, Fe<0.25%, balance aluminium and normal and/or inevitable elements and impurities. Zn, Ag and/or Ni may or may not be present. A typical range for Zn is <0.3 or, in a further embodiment about 0.3 to 1.3%. A typical range for Ag is <0.1 or, in a further embodiment about 0.1 to 1.0%. Products made from this aluminium alloy product are very suitable for aerospace applications. The alloy can be processed to various product forms, e.g. sheet, thin plate, thick plate, extruded or forged products. Products made from this alloy can be used also as a cast product, ideally as die-cast product.

Abstract: New 6xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 6xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 6xxx aluminum alloy bodies may realize improved strength and other properties.

Abstract: An aluminum alloy comprising 2.1 to 2.8 wt. % Cu, 1.1 to 1.7 wt. % Li, 0.1 to 0.8 wt. % Ag, 0.2 to 0.6 wt. % Mg, 0.2 to 0.6 wt. % Mn, a content of Fe and Si less or equal to 0.1 wt. % each, and a content of unavoidable impurities less than or equal to 0.05 wt. % each and 0.15 wt. % total, and the alloy being substantially zirconium free.

Abstract: Provided is an aluminum alloy, and particularly, a die casting aluminum alloy for a heat sink, which includes 0.01 to 0.5 wt % of Cu, 0.3 to 0.6 wt % of Fe, 1.0 to 1.5 wt % of Si, and thus may enhance heat dissipation and castability.

Abstract: A substantially recrystallized extrusion may include from about 0.7 to about 1.3 wt % silicon, up to about 0.50 wt % iron, from about 0.03 to about 0.2 wt % copper, up to about 0.5 wt % manganese, from about 0.6 to about 1.2 wt % magnesium, up to about 0.05 wt % chromium, up to about 0.2 wt % zinc, up to about 0.10 wt % titanium and the balance consisting essentially of aluminum and incidental elements and impurities. The disclosed alloy may be homogenized at a temperature above 1030° F. (554.4 ° C.) and have a recrystallized grain structure. Extrusions made from the disclosed alloys and having a wall thickness ranging from about 0.050 to about 0.500 inches (1.5-˜12.5 mm) provides a tensile yield strength of greater than 42 ksi (290 MPa).

Abstract: A composition for welding or brazing aluminum comprises silicon (Si) and magnesium (Mg) along with aluminum in an alloy suitable for use in welding and brazing. The Si content may vary between approximately 4.7 and 10.9 wt %, and the Mg content may vary between approximately 0.15 wt % and 0.50 wt %. The alloy is well suited for operations in which little or no dilution from the base metal affects the Si and/or Mg content of the filler metal. The Si content promotes fluidity and avoids stress concentrations and cracking. The Mg content provides enhanced strength. Resulting joints may have a strength at least equal to that of the base metal with little or no dilution (e.g., draw of Mg). The joints may be both heat treated and artificially aged or naturally aged.

Abstract: There is provided an aluminum-alloy material having sufficient electric conductivity and tensile strength as a wiring material and excellent in wire-drawing property, and an electric wire or cable using the same. An electric wire or cable includes an aluminum-alloy strand formed of an aluminum-alloy including Fe: 0.1% by mass or more to less than 1.0% by mass, Zr: 0 to 0.08% by mass, Si: 0.02 to 2.8% by mass, at least one of Cu: 0.05 to 0.63% by mass and Mg: 0.04 to 0.45% by mass, and the remainder being aluminum and unavoidable impurities.

Abstract: Disclosed herein is an aluminum alloy composition and a method of heat treating the aluminum alloy, to improve process control and strength of the aluminum alloy for a rear safety plate mounted on a truck, etc., complying with safety regulations wherein the aluminum alloy composition includes Silicon (Si) about 0.8 to 1.3% by weight, Iron (Fe) up to about 0.5% by weight, Copper (Cu) about 0.15 to 0.4% by weight, Manganese (Mn) up to about 0.15% by weight, Magnesium (Mg) about 0.8 to 1.2% by weight, Chromium (Cr) up to about 0.25% by weight, Zinc (Zn) up to about 0.2% by weight, Titanium (Ti) up to about 0.1% by weight and the remaining percent by weight of Aluminum (Al) of the entire composition.

Abstract: In a car body or component thereof with at least one first component of sheet metal of a first aluminum alloy and at least one second component of sheet metal of a second aluminum alloy, the first and second aluminum alloys are of type AlMgSi and in the sheet metal of the second aluminum alloy a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, is present in the form of separate Mg2Si and/or Si particles in order to avoid artificial ageing. By reduction of the hardening capacity of the second component during artificial ageing of the body as part of the paint baking cycle, the car body has an improved impact protection for pedestrians in comparison with solutions according to the prior art.

Abstract: New 6xxx aluminum alloys are disclosed. The new 6xxx aluminum alloys may include 1.05-1.50 wt. Mg, 0.60-0.95 wt. % Si, where the (wt. % Mg)/(wt. % Si) is from 1.30 to 1.90, 0.275-0.50 wt. % Cu, and from 0.05 to 1.0 wt. % of at least one secondary element, wherein the secondary element is selected from the group consisting of V, Fe, Cr, Mn, Zr, Ti, and combinations thereof.

Abstract: An aluminum alloy that can be cast into structural components wherein the alloy has reduced casting porosity, improved combination of mechanical properties including tensile strength, fatigue, ductility in the cast condition and in the heat treated condition.

Abstract: New 6xxx aluminum alloys are disclosed. The new 6xxx aluminum alloys may include 1.05-1.50 wt. Mg, 0.60-0.95 wt. % Si, where the (wt. % Mg)/(wt. % Si) is from 1.30 to 1.90, 0.275-0.50 wt. % Cu, and from 0.05 to 1.0 wt. % of at least one secondary element, wherein the secondary element is selected from the group consisting of V, Fe, Cr, Mn, Zr, Ti, and combinations thereof.

Abstract: This aluminum alloy sheet has increased BH properties under low-temperature short-time-period conditions after long-term room-temperature aging by means of causing aggregates of specific atoms to be contained having a large effect in BH properties, the distance between atoms being no greater than a set distance, and containing either Mg atoms or Si atoms measured by 3D atom probe field ion microscopy in a 6000 aluminum alloy sheet containing a specific amount of Mg and Si.

Abstract: An aluminum alloy includes, in weight percent, 0.70-0.85 Si, 0.14-0.25 Fe, 0.25-0.35 Cu, 0.05 max Mn, 0.75-0.90 Mg, 0.12-0.18 Cr, 0.05 max Zn, and 0.04 max Ti, the balance being aluminum and unavoidable impurities. The alloy may be suitable for extruding, and may be formed into an extruded alloy product.

Abstract: An aluminum alloy which is excellent in high temperature strength and heat conductivity by adjusting the composition to one keeping down the drop in high temperature strength and making the Mn content as small as possible to reduce the formation of a solid solution in the aluminum, which aluminum alloy having a composition of ingredients which contains Si: 12 to 16 mass %, N: 0.1 to 2.5 mass %, Cu: 3 to 5 mass %, Mg: 0.3 to 1.2 mass %, Fe: 0.3 to 1.5 mass %, and P: 0.004 to 0.02 mass % and furthermore 0 to 0.1 mass % of Mn and further contains, as necessary, at least one of V: 0.01 to 0.1 mass %, Zr: 0.01 to 0.6 mass %, Cr: 0.01 to 0.2 mass %, and Ti: 0.01 to 0.2 mass %. Also described is a method for producing the aluminum alloy melt.

Abstract: Disclosed is an Al—Mg—Si aluminum alloy sheet that can prevent ridging marks during press forming and has good reproducibility even with stricter fabricating conditions. In an Al—Mg—Si aluminum alloy sheet of a specific composition, hot rolling is performed on the basis of a set relationship between the rolling start temperature Ts and the rolling finish temperature Tf° C., whereby the relationship of the cube orientation distribution profile in the horizontal direction of the sheet with the cube orientation alone or another crystal orientation distribution profile at various locations in the depth direction of the sheet is made more uniform, suppressing the appearance of ridging marks that develop during sheet press forming.

Abstract: A high-strength Al—Cu—Mg—Si aluminum alloy product obtained by extrusion is characterized in that the microstructure of the entire surface of the cross-section of the aluminum alloy product is formed of recrystallized grains, the grains have an average aspect ratio (L/t) of 5.0 or less and the orientation density of the grains in the microstructure, for which the normal direction to the {001} plane is parallel to the extrusion direction in comparison with the grains orientated to random orientations, is 50 or less. The high-strength Al—Cu—Mg—Si aluminum alloy product is characterized in that rod-shaped precipitates are arranged in the grains of the matrix in the <100> direction, the precipitates have an average length of 10 to 70 nm and a maximum length of 120 nm or less, and the number density of the precipitates in the [001] direction measured from the (001) plane is 500 or more per square micrometer.

Abstract: An aluminum alloy sheet of specific Al—Mg—Si composition, which, owing to preliminary aging treatment under adequate conditions, has a specific metallographic structure in which there are a large number of clusters of specific size (each being an aggregate of atoms) expressed in terms of number density, which, when observed under a transmission electron microscope of 1,000,000 magnifications, appear as dark contrast in the bright field image. It is superior in paint baking hardenability and is invulnerable to room temperature aging during storage for a comparatively long period of 1 to 4 months.

Abstract: An aluminum-alloy sheet includes 0.10 to 0.40 mass % of Si, 0.35 to 0.80 mass % of Fe, 0.10 to 0.35 mass % of Cu, 0.20 to 0.80 mass % of Mn, and 1.5 to 2.5 mass % of Mg, the balance being Al and unavoidable impurities, wherein a content ratio (Si/Fe) of the Si to the Fe is 0.75 or less, the area fraction of Mg2Si intermetallic compound grains having a maximum length of 1 ?m or more is 0.10% or more in a region of a section of the aluminum-alloy sheet, the region being a central region in the thickness direction of the aluminum-alloy sheet, and the aluminum-alloy sheet has a proof stress of 225 to 270 N/mm2 after having been baked at 270° C. for 20 seconds.

Abstract: An aluminum-alloy sheet includes 0.10 to 0.40 mass % of Si, 0.35 to 0.80 mass % of Fe, 0.10 to 0.35 mass % of Cu, 0.20 to 0.80 mass % of Mn, and 1.5 to 2.5 mass % of Mg, the balance being Al and unavoidable impurities, wherein a content ratio (Si/Fe) of the Si to the Fe is 0.75 or less, the solute Mn content is 0.12 to 0.20 mass %, and the aluminum-alloy sheet has a proof stress of 225 N/mm2 or more after having been baked at 270° C. for 20 seconds.

Abstract: A high strength aluminum alloy casting obtained by casting an aluminum alloy comprised of 7.5 to 11.5 wt % of Si, 3.8 to 4.8 wt % of Cu, 0.45 to 0.65 wt % of Mg, 0.4 to 0.7 wt % of Fe, 0.35 to 0.45 wt % of Mn, and the balance of Al and not more than 0.2 wt % of unavoidable impurities, wherein this aluminum alloy has 0.1 to 0.3 wt % of Ag added to it or contains 0.1 to 1.0 wt % of at least one element selected from the group of second additive elements comprised of Rb, K, Ba, Sr, Zr, Nb, Ta, V, and Pd and rare earth elements, and a method of production of a high strength aluminum alloy casting comprising the steps of filling a melt of an aluminum alloy in a mold to obtain a casting, taking out the aluminum alloy casting from the mold, solubilizing the high strength aluminum alloy casting by heating in a temperature range of 495 to 505° C.

Abstract: A cold-hardening aluminium casting alloy with good thermal stability for the production of thermally and mechanically stressed cast components, wherein the alloy includes from 11.0 to 12.0 wt % silicon from 0.7 to 2.0 wt % magnesium from 0.1 to 1 wt % manganese less than or equal to 1 wt % iron less than or equal to 2 wt % copper less than or equal to 2 wt % nickel less than or equal to 1 wt % chromium less than or equal to 1 wt % cobalt less than or equal to 2 wt % zinc less than or equal to 0.25 wt % titanium 40 ppm boron optionally from 80 to 300 ppm strontium and aluminium as the remainder with further elements and impurities due to production individually at most 0.05 wt %, in total at most 0.2 wt %. The alloy is suitable in particular for the production of cylinder crank cases by the die-casting method.

Abstract: There is provided an aluminum alloy casting consisting essentially of 7.0 to 11.5 mass % of Si, 0.9 to 4.0 mass % of Mg, 0.1 to 0.65 mass % of Fe, 0.1 to 0.8 mass % of Mn and the balance being Al and unavoidable impurities, or consisting essentially of 7.0 to 11.5 mass % of Si, 0.9 to 4.0 mass % of Mg, 0.1 to 0.65 mass % of Fe, 0.1 to 0.8 mass % of Mn, 0.3 to 1.0 mass % of Cu and the balance being Al and unavoidable impurities, and containing eutectic Si grains having an aspect ratio of 2.0 or smaller and an average grain size of 1.0 micrometer or smaller. There is also provided an automotive part formed with the aluminum alloy casting and a production method of the aluminum alloy casting.

Abstract: A method of forming a silicon anode material for rechargeable cells includes providing a metal matrix that includes no more than 30 wt % of silicon, including silicon structures dispersed therein. The metal matrix is at least partially etched to at least partially isolate the silicon structures.

Abstract: Various illustrative embodiments of a free-machining aluminum alloy composition and related methods are provided. The aluminum alloy composition can include an aluminum alloy and an effective amount of a graphitic material as a free-machining constituent. Free-machining means the graphitic material is capable of modifying the machining character of the aluminum alloy by affecting the generation of chip-shaped machining debris and/or the friction between the machining tool and the workpiece.

Abstract: A wear-resistant aluminum alloy material excellent in workability and wear-resistance is provided. A wear-resistant aluminum alloy material excellent in workability includes Si: 13 to 15 mass %, Cu: 5.5 to 9 mass %, Mg: 0.2 to 1 mass %, Ni: 0.5 to 1 mass %, P: 0.003 to 0.03 mass %, and the balance being Al and inevitable impurities. An average particle diameter of primary Si particles is 10 to 30 ?m, an area occupancy rate of the primary Si particles in cross-section is 3 to 12%, an average particle diameter of intermetallic compounds is 1.5 to 8 ?m, and an area occupancy rate of the intermetallic compounds in cross-section is 4 to 12%.

Abstract: A Al—Mg—Si-based, casting aluminum alloy comprising by mass 4-6% of Mg, 3.1-4.5% of Si, 0.5-1% of Mn, 0.1-0.3% of Cr, and 0.1-0.4% of Cu, the balance being Al and inevitable impurities.

Abstract: An AA2000-series alloy including 2 to 5.5% Cu, 0.5 to 2% Mg, at most 1% Mn, Fe <0.25%, Si >0.10 to 0.35%, and a method of manufacturing these aluminum alloy products. More particularly, disclosed are aluminum wrought products in relatively thick gauges, i.e. about 30 to 300 mm thick. While typically practiced on rolled plate product forms, this method may also find use with manufacturing extrusions or forged product shapes. Representative structural component parts made from the alloy product include integral spar members, and the like, which are machined from thick wrought sections, including rolled plate.

Abstract: An AA7000-series alloy including 3 to 10% Zn, 1 to 3% Mg, at most 2.5% Cu, Fe <0.25%, and Si >0.12 to 0.35%, and a method of manufacturing these aluminum alloy products. More particularly, disclosed are aluminum wrought products in relatively thick gauges, in particular i.e. about 30 to 300 mm thick. While typically practiced on rolled plate product forms, this method may also find use with manufacturing extrusions or forged product shapes. Representative structural component parts made from the alloy product include integral spar members, and the like, which are machined from thick wrought sections, including rolled plate.