Abstract: New 6xxx aluminum alloys are disclosed. In one embodiment, a new 6xxx aluminum alloy sheet product includes from 0.75 to 1.05 wt. % Si, from 0.65 to 0.95 wt. % Mg, wherein (wt. % Mg)/(wt. % Si) is not greater than 0.99:1, from 0.50 to 0.75 wt. % Cu, from 0.02 to 0.40 wt. % Mn, from 0.06 to 0.26 wt. % Cr, wherein (wt. % Mn)+(wt. % Cr) is at least 0.22 wt. %, from 0.01 to 0.30 wt. % Fe, up to 0.25 wt. % Zn, up to 0.20 wt. % Zr, up to 0.20 wt. % V, and up to 0.15 wt. % Ti, the balance being aluminum, optional incidental elements and impurities.

Abstract: New 7xxx aluminum alloys alloys are disclosed. The new 7xxx aluminum alloys may include 5.0-9.0 wt. % Zn, 1.30-2.05 wt. % Mg, 1.10-2.10 wt. % Cu, wherein 2.55?(wt. % Cu+wt. % Mg)?3.85, at least one of (i) 0.03-0.40 wt. % Mn and 0.02-0.15 wt. % Zr, wherein 0.05?(wt. % Zr+wt. % Mn)?0.50, up to 0.20 wt. % Cr, up to 0.20 wt. % V, up to 0.20 wt. % Fe, up to 0.15 wt. % Si, up to 0.15 wt. % Ti, and up to 75 ppm B, the balance being aluminum, incidental elements and impurities. The new 7xxx aluminum alloys may be in the form of a 7xxx aluminum alloy sheet product having a thickness of from 0.5 to 4.0 mm and comprising at least 15 vol. % recrystallized grains. The new alloys may realize an improved combination of at least two of strength, elongation, fracture behavior and corrosion resistance.

Abstract: New 6xxx aluminum alloys are disclosed. In one approach, a new 6xxx aluminum alloy may include from 0.25-0.60 wt. % Fe, 0.8-1.2 wt. % Si, 0.35-1.1 wt. % Mg, 0.05-0.8 wt. % Mn, up to 0.30 wt. % Cu, up to 0.35 wt. % Zn, up to 0.15 wt. % Ti, up to 0.15 wt. % each of Cr, Zr, and V, the balance being aluminum, incidental elements and impurities. The new 6xxx aluminum alloys may be made from recycled aluminum alloys.

Abstract: New 2xxx aluminum alloys having are disclosed. The new 2xxx aluminum alloys generally include 2.5-3.9 wt. % Cu, 0.82-1.20 wt. % Li, 0.5-2.0 wt. % Zn, 0.10-0.60 wt. % Mn, 0.05-0.35 wt. % Mg, from 0.05 to 0.50 wt. % of at least one grain structure control element, wherein the at least one grain structure control element is selected from the group consisting of Zr, Sc, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 0.22 wt. % Ag, up to 0.15 wt. % Fe, up to 0.12 wt. % Si, and up to 0.15 wt. % Ti, the balance being aluminum, incidental elements and impurities. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance.

Abstract: New 7xxx aluminum alloys are disclosed. The new 7xxx aluminum alloys generally include from 0.05 to 1.0 wt. % Ag. In one approach, a new 7xxx aluminum alloy includes from 0.05 to 1.0 wt. % Ag, from 5.5 to 9.0 wt. % Zn, from 1.2 to 2.6 wt. % Cu, from 1.3 to 2.5 wt. % Mg, up to 0.60 wt. % Mn, up to 1.0 wt. % of at least one grain structure control material, wherein the at least one grain structure control material is selected from the group consisting of Zr, Cr, V, Hf, other rare earth elements, and combinations thereof, up to 0.30 wt. % Fe, up to 0.30 wt. % Si, up to 0.15 wt. % Ti, not greater than 0.08 wt. % Sc, and not greater than 0.05 wt. % Li, the balance being aluminum, optional incidental elements and impurities.

Abstract: New 2xxx aluminum alloys are disclosed. The new 2xxx aluminum alloys generally include from 0.08 to 0.20 wt. % Ti. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance, for instance.

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: Disclosed are improved thick wrought 7xxx aluminum alloy products, and methods for producing the same. The new 7xxx aluminum alloy products may realize an improved combination of environmentally assisted crack resistance and at least one of strength, elongation, and fracture toughness, among other properties. The new 7xxx aluminum alloy products generally include high amounts of manganese. The new 7xxx aluminum alloy products thus generally include from 0.15 to 0.50 wt. % Mn in combination with 5.5-7.5 wt. % Zn, 0.95-2.20 wt. % Mg, and 1.50-2.40 wt. % Cu.

Abstract: New aluminum alloys having iron and one or more rare earth elements are disclosed. The new alloys may include from 1 to 15 wt. % Fe and from 1 to 20 wt. % of the rare earth element(s), the balance aluminum and any optional incidental elements and impurities. The new aluminum alloys may be produced via additive manufacturing techniques.

Abstract: The present disclosure relates to various embodiments of aluminum alloy products having fine eutectic-type structures and methods for making the same. The method for producing an aluminum alloy product having a fine eutectic-type structure comprising selectively heating at least a portion of an additive manufacturing feedstock to a temperature above a liquidus temperature of the additive manufacturing feedstock, thereby forming a molten pool; and cooling the molten pool, thereby forming a solidified mass.

Abstract: The present disclosure relates to new nickel-iron-aluminum-chromium based alloys. Generally, the new alloys contain 20-40 at. % Ni, 15-40 at. % Fe, 5-20 at % Al, and 5-26 at. % Cr, the balance being optional incidental elements and unavoidable impurities. Generally, methods for producing the new alloys include one or more of heating a mixture above its liquidus temperature, then cooling the mixture below its solidus temperature, optionally hot and/or cold working the solid material into a final product form, then heating and quenching the solid material, and precipitation hardening the solid material.

Abstract: The present disclosure relates to methods of additively manufacturing multi-region alloy products. The multi-region products generally comprise a first region having a first crystallographic structure, and a second region having a second crystallographic structure, different than the first, wherein at least one of the first and the second crystallographic structures is a multi-phase microstructure. In one embodiment, an energy source is used to selectively produce at least some of the first region and/or at least some of the second region. The locations and/or volumes of one or more regions may be preselected and/or controlled so as to produce multi-region products having tailored microstructures.

Abstract: New aluminum alloys having iron, vanadium, silicon, and copper, and with a high volume of ceramic phase therein are disclosed. The new products may include from 3 to 12 wt. % Fe, from 0.1 to 3 wt. % V, from 0.1 to 3 wt. % Si, from 1.0 to 6 wt. % Cu, from 1 to 30 vol. % ceramic phase, the balance being aluminum and impurities. The ceramic phase may be homogenously distributed within the alloy matrix.

Abstract: New aluminum alloys having iron, vanadium, silicon and copper are disclosed. The new alloys may include from 3 to 12 wt. % Fe, from 0.1 to 3 wt. % V, from 0.1 to 3 wt. % Si, and from 1.0 to 6 wt. % Cu, the balance being aluminum and impurities. The new aluminum alloys may be produced via additive manufacturing techniques, which may facilitate rapid solidification of a molten pool of the aluminum alloy.

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: New HT aluminum alloy bodies and methods of producing the same are disclosed. The new HT aluminum alloy bodies contain 0.20-2.0 wt. % Mg, 0.10-1.5 wt. % Si, 0.01-1.0 wt. % Fe, and, 0.10-1.0 wt. % Cu, wherein, when Si+Cu<0.60 wt. %, then Fe+Mn?1.5 wt. %, optionally with up to 1.5 wt. % Mn, optionally with up to 1.5 wt. % Zn, wherein at least one of the Mg, the Si, the Fe, the Cu, the optional Mn, and the optional Zn is the predominate alloying element of the aluminum alloy sheet other than the aluminum, and 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 HT aluminum alloy bodies may realize improved strength and other properties.

Abstract: There is claimed a forged structural member suitable for aerospace applications and having improved combinations of strength and toughness. The member is made from a substantially vanadium-free, lithium-free aluminum-based alloy consisting essentially of: about 4.85-5.3 wt. % copper, about 0.5-1.0 wt. % magnesium, about 0.4-0.8 wt. % manganese, about 0.2-0.8 wt. % silver, about 0.05-0.25 wt. % zirconium, up to about 0.1 wt. % silicon, and up to about 0.1 wt. % iron, the balance aluminum, incidental elements and impurities, the Cu:Mg ratio of said alloy being between about 5 and 9, and more preferably between about 6.0 and 7.5. The invention exhibits a typical longitudinal tensile yield strength of about 71 ksi or higher at room temperature and can be forged into aircraft wheels or various brake and other product forms.

Abstract: There is claimed a lower wing structure for a commercial jet aircraft which includes a substantially unrecrystallized rolled plate member made from an aluminum alloy consisting essentially of about 3.6 to 4.0 wt. % copper, about 1.0 to 1.6 wt. % magnesium, about 0.3 to 0.7 wt. % manganese, about 0.05 to 0.25 wt. % zirconium, the balance aluminum and incidental elements and impurities. On a preferred basis, the alloy products of this invention include very low levels of both iron and silicon, typically on the order of less than 0.1 wt. % each, and more preferably about 0.05 wt. % or less iron and about 0.03 wt. % or less silicon. This alloy composition may be rolled to form lower wing skin plates and extruded or rolled to form wing box stringers therefrom.

Abstract: There is claimed a lower wing structure for a commercial jet aircraft which includes a substantially unrecrystallized rolled plate member made from an aluminum alloy consisting essentially of about 3.6 to 4.0 wt. % copper, about 1.0 to 1.6 wt. % magnesium, about 0.3 to 0.7 wt. % manganese, about 0.05 to 0.25 wt. % zirconium, the balance aluminum and incidental elements and impurities. On a preferred basis, the alloy products of this invention include very low levels of both iron and silicon, typically on the order of less than 0.1 wt. % each, and more preferably about 0.05 wt. % or less iron and about 0.03 wt. % or less silicon. This alloy composition may be rolled to form lower wing skin plates and extruded or rolled to form wing box stringers therefrom.

Abstract: There is claimed a sheet or plate structural member suitable for aerospace applications and having improved combinations of strength and toughness. The member is made from a substantially vanadium-free, lithium-free, aluminum-based alloy consisting essentially of: about 4.85-5.3 wt. % copper, about 0.5-1.0 wt. % magnesium, about 0.4-0.8 wt. % manganese, about 0.2-0.8 wt. % silver, about 0.05-0.25 wt. % zirconium, up to about 0.1 wt. % silicon, and up to about 0.1 wt. % iron, the balance aluminum, incidental elements and impurities, the Cu:Mg ratio of said alloy being between about 5 and 9, and more preferably between about 6.0 and 7.5. The invention exhibits a typical tensile yield strength of about 77 ksi or higher at room temperature and can be processed into various lower wing members or into the fuselage skin of high speed aircraft.