Rare Earth Encyclopedia|Rare Earth master alloy

Rare earth master alloy refers to a substance with metallic characteristics composed of rare earth elements and one or several other elements, also known as the mother alloy. This alloy material is widely used in electronics, aerospace, new energy, medical equipment and other fields, with high strength, low density, corrosion resistance and other advantages.

Rare earth master alloys generally include mixed rare earth metals, silicon-based rare earth composite ferroalloys and binary rare earth master alloys based on rare earth or yttrium. Its basic use is as a rare earth additive for adjusting the composition of the melt. Specifically, it is to melt some metal elements with a higher melting temperature, using the melting method and rare earth to generate an intermediate, the melting temperature of this intermediate is significantly reduced, so that some metal elements with a higher melting temperature are added to the melt at a lower temperature to adjust the element content of the melt.

Different types of rare earth master alloys have different uses. For example, high aluminum rare earth ferrosilicon alloy is mainly used for steel deoxidation and improve the desulfurization effect of molten steel; The rare earth aluminum alloy is used to improve the mechanical strength, electrical conductivity and corrosion resistance of industrial pure aluminum. Yttrium aluminum alloy is mainly used in the production of electric heating alloy; Magnesium base rare earth master alloy is an alloy additive for casting magnesium alloy and deformation of hot strong magnesium alloy. Iron base rare earth master alloys are mainly used in the manufacture of Nd-Fe-B permanent magnets, high-strength heat-resistant alloys and high-ohmic resistance alloys.