Measurements of the diffusion rates of Cr in pure polycrystalline β-Zr were carried out at 914 to 1240C. The diffusion parameters were determined by analyzing diffusion profiles in the sample. An Arrhenius plot of the results showed that the diffusion was described by:

D (cm2/s) = 7.0 x 10-3 exp[-33.8(kcal/mol)/RT]

L.I.Nicolai, R.H.De Tendler: Journal of Nuclear Materials, 1979, 87[2-3], 401-4