The diffusion behavior of Fe in single crystals of Al was monitored by means of 57Fe Mössbauer line-broadening measurements. It was deduced that the Fe atoms migrated by exchanging sites with nearest-neighbor vacancies. The binding energy of an Fe-vacancy complex was estimated to be about 0.29eV. The diffusivity results could be described by:

D (cm2/s) = 1.1 x 104 exp[-2.3(eV)/kT]

S.Mantl, W.Petry, K.Schroeder, G.Vogl: Physical Review B, 1983, 27[9], 5313-31

The best linear fits to the solute diffusion data ([562] to [565], [567] to [570], [573] to [577], [581] to [585], [592] to [599], [608] to [611], [623] to [626]) yield:

Au: Ln[Do] = 0.67E – 20.7 (R2 = 0.999); Co: Ln[Do] = 0.43E – 12 (R2 = 0.69);

Cu: Ln[Do] = 0.69E – 22.7 (R2 = 0.99); Fe: Ln[Do] = 0.56E – 20.5 (R2 = 0.996);

H: Ln[Do] = 0.63E – 9.45 (R2 = 0.96); Mn: Ln[Do] = 0.52E – 21.4 (R2 = 0.993);

Zn: Ln[Do] = 0.77E – 24 (R2 = 0.99)