Aluminum Base Master Alloy is based on a metal. The definition of one or several single master alloys shows that the master alloy has the following characteristics
One of the most important goals of aluminum alloy production by casting is the refinement of grain size, because coarse grain size immediately reflects in lower property levels. In the case of fixed melting and casting conditions, this goal is usually achieved by different modification methods. These methods are conventionally based on the introduction of a small amount of special master alloys into a slightly overheated melt.
There is a variety of master alloys for aluminum and aluminum alloys, depending on the principal (leading) element. Most master alloys have a special color code and classification numbers provided by the Aluminum Association (AA) and the European Standardization Committee (CEN).
Master alloy is a variety of base alloys for the smelting of steel, cast iron, superalloy, titanium alloy, magnetic alloy, aluminum alloy and non-ferrous metal materials and additives. It cannot be used directly as a metal material. The master alloy is composed of two or more elements, in addition to the mass-produced ferroalloys. Master alloy is designed according to the composition and special requirements of the metal materials. It can be classified into iron base master alloy, nickel masterbase alloy, aluminum base master alloy, etc. according to the matrix composition, or according to the main elements of the alloy, but it is often called special alloy, so as to distinguish it from mass-produced ferroalloy, such as silicon special alloy, calcium special alloy, boron special alloy, chromium special alloy, etc.
