An electrolytic charging technique, and time-lag measurements, were used to study Armco Fe. The results could be described by:

50-100:     D (cm2/s) = 1.7 x 10-5 exp[-16.5(kcal/mol)/RT]

140-300:     D (cm2/s) = 3.8 x 10-3 exp[-4.2(kcal/mol)/RT]

J.Chene: Métal, Corrosion, Industrie, 1977, 52[622], 203-23