An improved aluminum alloy for blending with a recycled aluminum alloy to form a material for high pressure vacuum die casting is provided. The improved aluminum alloy includes 10 to 12 wt. % silicon, 0.65 to 0.85 wt. % manganese, less than 0.05 wt. % iron, less than 0.05 wt. % magnesium, 0.2 to 0.4 wt. % strontium, less than 0.05 wt. % titanium, and less than 0.02 wt. % copper, based on the total weight of the improved aluminum alloy. The recycled aluminum alloy typically includes 0.60-1.0 wt. % silicon, ?0.35 wt. % iron, ?0.20 wt. % copper, 0.05-0.20 wt. % manganese, 0.40-0.8 wt. % magnesium, ?0.20 wt. % chromium, ?0.15 wt. % zinc, ?0.05 wt. % titanium, ?0.05 wt. % others (each), and ?0.15 wt. % others (total). The material meets the specifications for an Aural 5S alloy.

A thixotropically molded product includes: a matrix portion containing Mg as a main component; a first particle portion dispersed in the matrix portion and containing SiC as a main component; a second particle portion dispersed in the matrix portion and containing Mg.sub.2Si as a main component; and a third particle portion dispersed in the matrix portion and containing MgO as a main component. An area fraction of the first particle portion in a cross section is 0.68 or more and 19.6% or less.

An aluminium, magnesium and silicon-based die casting alloy having 5.0-7.0 wt. % magnesium, 1.5-7.0 wt. % silicon, 0.3-0.8 wt. % manganese, 0.03-0.5 wt. % iron, 0.01-0.4 wt. % molybdenum, 0.01-0.3 wt. % zirconium, 0-0.25 wt. % titanium, 0-0.25 wt. % strontium, 0-250 ppm phosphorus, 0-4 wt. % copper and 1-10 wt. % zinc, the remainder being aluminium and inevitable impurities.

The present disclosure provides AlSiMg 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 AlSiMg 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 AlSiMg aluminum alloy, a process for making the above AlSiMg aluminum alloy and an aluminum alloy obtainable by said process.

In various embodiments, aluminum alloys having yield strengths greater than 120 MPa, and typically in the range from 140 MPa to 175 MPa, are described. Further, such alloys can have electrical conductivity of greater than 45% IACS, typically in the range from 45-55% IACS. In one embodiment, the aluminum alloy comprises Si from 1 to 4.5 wt %, Mg from 0.3 to 0.5 wt %, TiB.sub.2 from 0.02 to 0.07 wt %, Fe less than 0.1 wt %, Zn less than 0.01 wt %, Cu less than 0.01 wt %, Mn less than 0.01 wt %, the remaining wt % being Al and incidental impurities. Such alloys can be used to cast a variety of automotive parts, including rotors, stators, busbars, inverters, and other parts.

The present disclosure relates to aluminum based alloys and a method for producing the aluminum based alloys. The method comprises acts of, casting of the aluminum based alloy in a chilled casting mold. Then, aging the cast aluminum based alloy at a first predetermined temperature for a first predetermined time. The aging results in the formation of a first precipitate. Followed by this, solutionizing the aluminum based alloy at a second predetermined temperature for a second predetermined time such that the major alloying element is dissolved in aluminum matrix without much affecting the first precipitate. Then, aging the aluminum based alloy at a third predetermined temperature for a third predetermined time. The aging results in the formation of a second precipitate.

A method for die casting a metal alloy in a cavity, implementing a mold comprising induction heater to heat the molding surfaces of the cavity. The cavity is filled with the metal alloy by injection and preheated to a nominal preheating temperature T1. The metal in the cavity is solidified. The mold is opened and the part is ejected therefrom. The molding surfaces of the cavity is heated by induction while the part is no longer in contact with said surfaces. The molding surfaces of the cavity is sprayed, the mold being opened, by a release agent. The mold is closes and the cavity is heated the temperature T1.

Methods of casting lightweight, high-strength aluminum cast structural components are provided wherein the casting is accomplished by low-pressure die casting or gravity casting. The aluminum cast structural component is preferably composed of an aluminum-based alloy comprising silicon at about 4 to about 7 wt. %; iron at about 0.15 wt. %; manganese at about 0.5 wt. %; chromium at about 0.15 to about 0.5 wt. %; magnesium at about 0.8 wt. %; zinc at about 0.01 wt. %; titanium at about 0.05 to about 0.15 wt. %; phosphorus at about 0.003 wt. %; strontium at about 0.015 wt. % and a balance of aluminum.

A die casting alloy on an aluminum-silicon base with a composition having 8.5 to 11.5 wt. % of silicon, 0.1 to 0.5 wt. % of magnesium, 0.3 to 0.8 wt. % of manganese, 0.02 to 0.5 wt. % of iron, 0.005 to 0.5 wt. % of zinc, 0.1 to 0.5 wt. % of copper, 0.02 to 0.3 wt. % of molybdenum, 0.02 to 0.3 wt. % of zirconium, 10 to 200 ppm of gallium and optionally at least one of 30 to 300 ppm of strontium, 5 to 30 ppm of sodium, 1 to 30 ppm of calcium, 5 to 250 ppm of phosphorus, 0.02 to 0.25 wt. % of titanium, and 3 to 50 ppm of boron with the remainder being aluminium and unavoidable impurities. The alloy can be produced with a recycling rate of 50%.

The present invention relates to a magnesium alloy material and a method for manufacturing the same. The magnesium alloy material comprises, with respect to the total of 100 wt % thereof: Sc of 0.01 to 0.3 wt %; Al of 0.05 to 15.0 wt %; and the balance being Mg and other unavoidable impurities, wherein the magnesium alloy comprises a secondary phase compound comprising Al and Sc in the alloy in which a Volta potential difference between the secondary phase compound and a magnesium base is less than 920 mV.