A metal matrix nanocomposite includes: (1) a matrix including an aluminum alloy; and (2) nanostmctures dispersed in the matrix, wherein the matrix includes grains having aspect ratios of about 3 or less. Manufacturing processes include subjecting the nanocomposite to solidification processing, fusion welding, extrusion, thixocasting, additive manufacturing, and heat treatment.

The present invention relates to aluminum alloy products that can be riveted and possess excellent ductility and toughness properties. The present invention also relates to a method of producing the aluminum alloy products. In particular, these products have application in the automotive industry.

The present disclosure provides Al—Si—Mg aluminum alloys comprising a deliberate addition of Mn between 0.05-0.40 weight percent to increase at least one tensile property (such as the yield strength) of an aluminum product comprising such alloy. The Al—Si—Mg alloy comprises, in weight percent, 5-9% Si, 0.35-0.75% Mg, 0.05-0.4% Mn, less than 0.15% Fe, up to 0.15% Ti, 0.005-0.03% Sr and the balance being aluminum and unavoidable impurities, wherein the unavoidable impurities may be present in an amount of up to 0.05% each and up to 0.15% total. The present disclosure provides a foundry ingot comprising the above Al—Si—Mg aluminum alloy, a process for making the above Al—Si—Mg aluminum alloy and an aluminum alloy obtainable by said process.

A casting magnesium alloy for providing improved thermal conductivity A magnesium alloy for providing improved thermal conductivity includes from 1 wt.% to 5 wt.% of lanthanum, from 1 wt.% to 5 wt.% of cerium or a combination thereof, and from 0.5 wt.% to 3 wt.% of neodymium, from 0.5 wt.% to 3 wt.% of gadolinium or a combination thereof, and from 0.0 wt.% to 0.2 wt.% of yttrium, and up to 0.8 wt.% of praseodymium, and up to 0.8 wt.% manganese, and up to 1.0 wt.% aluminium, and up to 0.8 wt.% zinc, and up to 20ppm beryllium, and with balanced magnesium and inevitable impurities.

A die-cast aluminum alloy and a preparation method and use thereof are disclosed. Based on the total mass of the die-cast aluminum alloy, the die-cast aluminum alloy includes: 4-9 wt % of Mg; 1.6-2.8 wt % of Si; 1.1-2 wt % of Zn; wt % of Mn; 0.1-0.3 wt % of Ti; 0.009-0.05 wt % of Be; the balance of Al; and less than 0.2 wt % of inevitable impurities.

A method for casting an aluminum alloy includes: pouring molten metal of an aluminum alloy comprising 6.0 to 9.0 mass % of Si, 0.4 to 0.8 mass % of Mg, 0.25 to 1.0 mass % of Cu, 0.08 to 0.25 mass % of Fe, 0.6 mass % or less of Mn, 0.2 mass % or less of Ti, and 0.01 mass % or less of Sr, with the balance being Al and unavoidable impurities into a shot sleeve of a die casting machine; filling a mold cavity of a center-gate die with the molten metal at a gate speed of 1 msec or less so as to produce a laminar flow, and subjecting T5 heat treatment so as to obtain the aluminum alloy having a tensile strength of 240 MPa or more.

A hollow interconnecting member for connecting vehicular frame members is provided. The hollow interconnecting member is formed of a metal material and defines a centerline. The hollow interconnecting member comprises a first end and a second end. The centerline extends through the first end and the second end. A plurality of walls cooperate to define a continuous passageway that extends between the first end and the second end and defines a first opening and a second opening at the first end and the second end, respectively. The hollow interconnecting member is formed as an as-cast one-piece construction.

The invention relates to the field of aluminum metallurgy and can be used to produce ingots from high quality aluminum alloys when manufacturing aerospace and automotive products. The use of this invention relates to the technology of secondary modification. The method of casting products from aluminum alloys includes the following stages: a) aluminum melt preparation in the alloying furnace; b) addition alloy introduction into melt; c) degassing of the aluminum melt containing the addition alloy; d) addition alloy re-introduction; e) filtration of the aluminum melt obtained at stage d) and f) feeding the filtered melt into the crystallizer. It ensures the improved effectiveness of the aluminum melt modification with addition alloys without additional constructional changes in existing lines for aluminum ingot casting. It allows reducing the alloy modification costs, decreasing the grain in resulting alloys and improving plastic and mechanical properties of the obtained cast ingots and their products.

A method for forming a battery bracket by semi-solid die casting, where the battery bracket is prepared by semi-solid die casting. The method includes: preparing an aluminum alloy raw material into liquid aluminum alloy, and incubating the liquid aluminum alloy at a first preset temperature; delivering the liquid aluminum alloy to a slurry machine for stirring to obtain a semi-solid slurry; pouring the semi-solid slurry into a die-casting machine for die-casting forming to obtain a prototype of the battery bracket; and subjecting the formed prototype of the battery bracket to solution treatment at a second preset temperature and then to aging treatment at a third preset temperature to obtain the battery bracket; where, the battery bracket mold structurally matches the battery bracket, and gates are disposed at positions in the battery bracket mold corresponding to threaded connections of a first boss and a second boss of the battery bracket, respectively.

An exemplary method for making a metal matrix composite vehicle component includes: using a mold including male and female die portions having mold surfaces and a plurality of spacers; heating the mold to a casting temperature; placing a ceramic preform on the plurality of spacers, the ceramic preform being spaced apart from at least one of the mold surfaces by the spacers; closing the mold to form a mold cavity between the mold surfaces of the male and female die portions, the ceramic preform being disposed within the mold cavity; providing molten metal into the mold cavity; and pressurizing the molten metal to a casting pressure for a casting duration to infiltrate the ceramic preform thereby forming the metal matrix composite vehicle component.