THE INFLUENCE OF STRUCTURAL RELATIONSHIP ON EXTENDED SOLID SOLUBILITYAT MECHANICAL ALLOYING

The role of structural relationships between metal-solvent and nearest intermetallic compound on the formation of extended solid solutions o btained by mechanical alloying was investigated. The systems Ni-Ga, Ni -Ge, Ni-In and Ni-Sn were studied. It was found, that if the host meta l and the intermetallic compound adjacent to the solid solution have s tructural relationship, mechanical alloying allows one to extend the r ange of the nickel-based solid solutions. It was shown that supersatur ated solid solutions extend to the two-phase regions and the region of the intermetallic compound at a favorable size factor.