A thixomolding material includes: a metal body that contains Mg as a main component; and a coating portion that is adhered to a surface of the metal body via a binder and contains Si particles containing Si as a main component. An average particle diameter of the Si particles is 1 μm or more and 100 μm or less, and a mass fraction of the Si particles in a total mass of the metal body and the Si particles is 1.0 mass % or more and 30.0 mass % or less. The binder may contain waxes. A content of the binder may be 0.001 mass % or more and 0.200 mass % or less.

The invention relates to a method of manufacturing an AIMgSc-series aluminium alloy product, the method comprising the step of cooling said AIMgSc-series aluminium alloy product from a final annealing temperature to below 150° C., wherein the cooling in a first temperature range of about 250° C. to about 200° C. is at an equivalent time of more than 4 hours, and wherein the cooling in a second temperature range from about 200° C. to about 150° C. is at an equivalent time of more than 0.2 hours, and wherein the equivalent time (t(eq)) is defined as (I) wherein T (in degrees Kelvin) indicates the temperature of the heat treatment, which changes over the time t (in hours) and T.sub.ref (in degrees Kelvin) is the reference temperature selected at 473K.

[00001]$\begin{array}{cc}t\left(\mathrm{eq}\right)=\frac{\int \exp \left(-16000/T\right)\mathrm{dt}}{\exp \left(-16000/T_{\mathrm{ref}}\right)}& \left(I\right)\end{array}$

The invention relates to a method of manufacturing an AIMgSc-series aluminium alloy product, the method comprising the step of cooling said AIMgSc-series aluminium alloy product from a final annealing temperature to below 150° C., wherein the cooling in a first temperature range of about 250° C. to about 200° C. is at an equivalent time of more than 4 hours, and wherein the cooling in a second temperature range from about 200° C. to about 150° C. is at an equivalent time of more than 0.2 hours, and wherein the equivalent time (t(eq)) is defined as (I) wherein T (in degrees Kelvin) indicates the temperature of the heat treatment, which changes over the time t (in hours) and T.sub.ref (in degrees Kelvin) is the reference temperature selected at 473K.

[00001]$\begin{array}{cc}t\left(\mathrm{eq}\right)=\frac{\int \exp \left(-16000/T\right)\mathrm{dt}}{\exp \left(-16000/T_{\mathrm{ref}}\right)}& \left(I\right)\end{array}$

The present disclosure concerns a cast aluminum alloy for making cast aluminum products, especially using high-pressure vacuum die casting operations. The cast aluminum alloy comprises, in weight percent: Ni between about 1.5 and about 6.5; Si between about 0.10 and 1.5; Mg between about 0.10 and about 3; Fe up to about 0.2; Mn up to about 0.65; Ti up to about 0.12; V up to about 0.15; Zr up to about 0.15; Mo up to about 0.15; Cr up to about 0.01; Sr up to about 0.02; and the balance being aluminum and unavoidable impurities.

A range of alloys of Mg and at least one of Cu, Si, Ni and Na alloys that is particularly suitable for hydrogen storage applications. The alloys of the invention are formed into binary and ternary systems. The alloys are essentially hypoeutectic with respect to their Cu and Ni contents, where one or both of these elements are present, but range from hypoeutectic through to hypereutectic with respect to their Si content when that element is also present. The terms hypoeutectic and hypereutectic do not apply to Na if it is added to the alloy. The alloy compositions disclosed provide high performance alloys with regard to their hydrogen storage and kinetic characteristics. They are also able to be formed using conventional casting techniques which are far cheaper and more amenable to commercial use than the alternative ball-milling and rapid solidification techniques which are much more expensive and complex. Each of the individual binary Mg-E systems, where E=Cu, Ni or Si, forms a eutectic comprising of Mg metal and a corresponding Mg.sub.xE.sub.y intermetallic phase.

A range of alloys of Mg and at least one of Cu, Si, Ni and Na alloys that is particularly suitable for hydrogen storage applications. The alloys of the invention are formed into binary and ternary systems. The alloys are essentially hypoeutectic with respect to their Cu and Ni contents, where one or both of these elements are present, but range from hypoeutectic through to hypereutectic with respect to their Si content when that element is also present. The terms hypoeutectic and hypereutectic do not apply to Na if it is added to the alloy. The alloy compositions disclosed provide high performance alloys with regard to their hydrogen storage and kinetic characteristics. They are also able to be formed using conventional casting techniques which are far cheaper and more amenable to commercial use than the alternative ball-milling and rapid solidification techniques which are much more expensive and complex. Each of the individual binary Mg-E systems, where E=Cu, Ni or Si, forms a eutectic comprising of Mg metal and a corresponding Mg.sub.xE.sub.y intermetallic phase.

The present invention provides a bi-metal assembling method. The method provides a machine-shaped aluminum piece and places the machine-shaped aluminum piece into a die-cast mold. The machine-shaped aluminum piece is encapsulated with a magnesium metal liquid and die cast is performed. The assembled bi-metal structure is coated for protection and CNC high-gross treatment and anodizing treatment is performed in the machine-shaped aluminum piece. The magnesium alloy piece is hooked with the machine-shaped aluminum piece for assembling. The bi-metal structure has smooth surface to reduce the time for polishing, surface shrinkage and generation of blowholes. The present invention also provides a bi-metal assembled structure.

The present invention provides a bi-metal assembling method. The method provides a machine-shaped aluminum piece and places the machine-shaped aluminum piece into a die-cast mold. The machine-shaped aluminum piece is encapsulated with a magnesium metal liquid and die cast is performed. The assembled bi-metal structure is coated for protection and CNC high-gross treatment and anodizing treatment is performed in the machine-shaped aluminum piece. The magnesium alloy piece is hooked with the machine-shaped aluminum piece for assembling. The bi-metal structure has smooth surface to reduce the time for polishing, surface shrinkage and generation of blowholes. The present invention also provides a bi-metal assembled structure.

New 7xx aluminum casting alloys are disclosed. The aluminum casting alloys generally include from 3.0 to 8.0 wt. % Zn, from 1.0 to 3.0 wt. % Mg, where the wt. % Zn exceeds the wt. % Mg, from 0.35 to 1.0 wt. % Cu, where the wt. % Mg exceeds the wt. % Cu, from 0.05 to 0.30 wt. % V, from 0.01 to 1.0 wt. % of at least one secondary element (Mn, Cr, Zr, Ti, B, and combinations thereof), up to 0.50 wt. % Fe, and up to 0.25 wt. % Si, the balance being aluminum and other elements, wherein the aluminum casting alloy include not greater than 0.05 wt. % each of the other elements, and wherein the aluminum casting alloy includes not greater than 0.15 wt. % in total of the other elements.

New 7xx aluminum casting alloys are disclosed. The aluminum casting alloys generally include from 3.0 to 8.0 wt. % Zn, from 1.0 to 3.0 wt. % Mg, where the wt. % Zn exceeds the wt. % Mg, from 0.35 to 1.0 wt. % Cu, where the wt. % Mg exceeds the wt. % Cu, from 0.05 to 0.30 wt. % V, from 0.01 to 1.0 wt. % of at least one secondary element (Mn, Cr, Zr, Ti, B, and combinations thereof), up to 0.50 wt. % Fe, and up to 0.25 wt. % Si, the balance being aluminum and other elements, wherein the aluminum casting alloy include not greater than 0.05 wt. % each of the other elements, and wherein the aluminum casting alloy includes not greater than 0.15 wt. % in total of the other elements.