Structural investigations of NdFe12-x-yTixNby alloys

Abstract A series of NdFe 12− x − y Ti x Nb y (0.6⩽ x + y ⩽1.1) alloys was prepared by arc melting followed by annealing at temperatures 950°C, 1050°C and 1150°C and water quenching. X-ray diffraction and magnetization measurements showed crystalline phases of ThMn 12 (1:12), Th 2 Zn 17 (2:17) and Nd 3 (Fe,Ti) 29 (3:29) structure types, as well as BCC-Fe and Fe 2 (Ti,Nb) crystalline phases. The volume fraction of the intermetallic compounds rises with the increasing of the annealing temperature. The 1:12 structure type is formed in alloys with p Nb = y /( x + y ) p Nb p Nb >0.5) the 2:17 structure type is observed.