The bulk diffusivity of 59Fe exhibited a slight decrease, for Si contents of up to 2at%, followed by an increase. The present results could be described by:

D (cm2/s) = 2.73 x 100 exp[-57.6(kcal/mol)/RT]

D.Treheux, L.Vincent, P.Guiraldenq: Acta Metallurgica, 1981, 29[5], 931-8