Scientific principles of making an alloying addition of scandium to aluminium alloys

Research works concerning making an alloying addition of scandium to aluminium alloys are carried out for nearly 30 years in Russia. As a result of these studies, main regularities characterising the effect of scandium on a structure and properties of aluminium alloys have been found and, based on this, principles of making an alloying addition of scandium to aluminium alloys and foundations of a technology for production of wrought semiproducts have been formulated.