An Al—Si—Fe-based aluminum alloy casting material that is excellent in elongation while having characteristics of high rigidity and a method for producing the same are provided. The Al—Si—Fe-based aluminum alloy casting material has a composition that includes: Si, a content of which is 12.0% by mass or more and 25.0% by mass or less; Fe, a content of which is 0.48% by mass or more and 4.0% by mass or less; Cr, a content of which is 0.17% by mass or more and 5.0% by mass or less; and a remainder composed of Al and unavoidable impurities. The casting material includes a structure, in which a Si-based crystallized product surrounds an Al—Cr—Si-based compound.

An additive manufacturing method of producing a metal alloy article may involve: Providing a supply of a metal alloy in powder form; providing a supply of a nucleant material, the nucleant material lowering the nucleation energy required to crystallize the metal alloy; blending the supply of metal alloy powder and nucleant material to form a blended mixture; forming the blended mixture into a first layer; subjecting at least a portion of the first layer to energy sufficient to raise the temperature of the first layer to at least the liquidus temperature of the metal alloy; allowing at least a portion of the first layer to cool to a temperature sufficient to allow the metal alloy to recrystallize; forming a second layer of the blended mixture on the first layer; and repeating the subjecting and allowing steps on the second layer to form an additional portion of the metal alloy article.

An additive manufacturing method of producing a metal alloy article may involve: Providing a supply of a metal alloy in powder form; providing a supply of a nucleant material, the nucleant material lowering the nucleation energy required to crystallize the metal alloy; blending the supply of metal alloy powder and nucleant material to form a blended mixture; forming the blended mixture into a first layer; subjecting at least a portion of the first layer to energy sufficient to raise the temperature of the first layer to at least the liquidus temperature of the metal alloy; allowing at least a portion of the first layer to cool to a temperature sufficient to allow the metal alloy to recrystallize; forming a second layer of the blended mixture on the first layer; and repeating the subjecting and allowing steps on the second layer to form an additional portion of the metal alloy article.

New 3xx aluminum casting alloys are disclosed. The aluminum casting alloys generally include from 6.5 to 11.0 wt. % Si, from 0.20 to 0.80 wt. % Mg, from 0.05 to 0.50 wt. % Cu, from 0.10 to 0.80 wt. % Mn, from 0.005 to 0.05 wt. % Sr, up to 0.25 wt. % Ti, up to 0.30 wt. % Fe, and up to 0.20 wt. % Zn, the balance being aluminum and impurities.

New 3xx aluminum casting alloys are disclosed. The aluminum casting alloys generally include from 6.5 to 11.0 wt. % Si, from 0.20 to 0.80 wt. % Mg, from 0.05 to 0.50 wt. % Cu, from 0.10 to 0.80 wt. % Mn, from 0.005 to 0.05 wt. % Sr, up to 0.25 wt. % Ti, up to 0.30 wt. % Fe, and up to 0.20 wt. % Zn, the balance being aluminum and impurities.

Provided is an aluminum alloy material for die-casting that allows being manufactured at low-price and has a high strength property and a sufficient elongation property as an aluminum alloy, and a method for manufacturing the same. An aluminum alloy material for die-casting contains Si: 9.6 mass% to 12 mass%, Cu: 1.5 mass% to 3.5 mass%, Mg: more than 0.3 mass% to 1.6 mass%, Zn: 0.01 mass% to 3.5 mass%, Mn: 0.01 mass% to 0.7 mass%, Fe: 0.01 mass% to 1.3 mass%, and Al and inevitable impurities: balance when the aluminum alloy material for die-casting as a whole is 100 mass%, and a mass ratio of Fe to Mn (Fe/Mn) is 4.4 or less.

The present disclosure relates to the technical field of metal materials, and more specifically, to a non-heat treated aluminum alloy stress-bearing member material with high toughness and high casting performance and its preparation method. The non-heat treated aluminum alloy stress-bearing member material with high toughness and high casting performance includes the following components in terms of mass percentage: Si: 8.5-12.0%, Mg: 0.10-0.35%, Mn: 0.25-0.4%, Cr: 0.02-0.14%, V: 0.02-0.38%, Sr: 0.01-0.04%, Ti: 0.05-0.11%, B≤0.005%, Ca≤0.05%, Zr≤0.1%, Zn≤0.1%, RE≤0.1%. The total amount of other impurities is less than or equal to 0.25%, and the balance is Al. Under the premise of ensuring that the alloy has good die casting performance, the die-casting parts in non-heat-treated state can have excellent comprehensive mechanical properties, thereby meeting the performance requirements of the die casting stress-bearing member.

Provided herein are aluminum alloys and methods of making these alloys. The aluminum alloys described herein are produced with a high content of recycled scrap. The recycled scrap may include used beverage can scrap and mixed alloy scrap (e.g., automotive scrap containing one or more of 5xxx, 6xxx, and/or 7xxx series aluminum alloys). Surprisingly, aluminum alloy products produced from the aluminum alloys including a high content of recycled scrap as described herein exhibit mechanical properties comparable to those displayed by high-performance aluminum alloy products, such as high tensile strength, good formability without cracking and/or fracture, and/or high elongation before fracture.

The present invention relates to an aluminum alloy for diecasting having improved thermal conductivity and castability. Provided herein is an aluminum alloy for diecasting having improved thermal conductivity and castability by forming an aluminum alloy containing about 10.0 wt % to about 12.0 wt % of silicon (Si), about 0.5 wt % to about 0.8 wt % of iron (Fe), about 0.3 wt % or less of impurities, and remainder of aluminum (Al), a heat sink for a battery manufactured using the aluminum alloy for diecasting, and a manufacturing method thereof.

The present invention relates to an aluminum alloy for diecasting having improved thermal conductivity and castability. Provided herein is an aluminum alloy for diecasting having improved thermal conductivity and castability by forming an aluminum alloy containing about 10.0 wt % to about 12.0 wt % of silicon (Si), about 0.5 wt % to about 0.8 wt % of iron (Fe), about 0.3 wt % or less of impurities, and remainder of aluminum (Al), a heat sink for a battery manufactured using the aluminum alloy for diecasting, and a manufacturing method thereof.