Major alloying elements in aluminium
Increase ductility of hypoeutectic and eutectic aluminumsilicon alloys (Wrought aluminumsilicon alloys (4xxx), Cast aluminum alloy 443. 0) by a modification of the silicon phase from coarse platelet like particles to fine fibrous structure.Aluminium alloys are alloys in which aluminium is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin and zinc. There are two principal classifications, namely casting alloys and wrought alloys, both of which are further subdivided into the categories heattreatable and nonheattreatable. About 85 of aluminium is used for wrought products, for example rolled major alloying elements in aluminium
The addition of alloying elements modifies the properties and characteristics of aluminum. Such aspects as density, electrical and thermal conductivity, thermal expansion, mechanical properties, ability to finish and harden, and corrosion resistance are all affected by combining the alloying elements with aluminum.
The addition of alloying elements to aluminum is the principal method used to produce a selection of different materials that can be used in a wide assortment of structural applications. If we consider the seven designated aluminum alloy series used for wrought alloys, we can immediately identify the main alloying elements used for producing each of the alloy series. The principal effects of alloying elements in aluminum are as follows: Copper (Cu) 2xxx The aluminumcopper alloys typically contain between 2 to 10 copper, with smaller additions of other elements. The copper provides substantial increases in strength and facilitates precipitation hardening.major alloying elements in aluminium Manganese is the major alloying element in this series, often with smaller amounts of magnesium added. However, only a limited percentage of manganese can be effectively added to aluminum. 3003 is a popular alloy for general purpose because it has moderate strength and good workability and may be used in applications such as heat exchangers and cooking utensils.