Serial sectioning methods were used to study the diffusion of 95Nb in the γ phase. The results could be described by:

D (cm2/s) = 8.3 x 10-1 exp[-266.5(kJ/mol)/RT]

The diffusivity in the paramagnetic α phase could be described by:

D (cm2/s) = 5.02 x 101 exp[-252(kJ/mol)/RT]

J.Geise, C.Herzig: Zeitschrift für Metallkunde, 1985, 76[9], 622-6