The diffusivity of H was determined by using electrochemical methods at 273 to 360K. The results could be described by:
D (cm2/s) = 2.89 x 10-3 exp[-5.3(kcal/mol)/RT]
M.Yoshihara, R.B.McLellan: Acta Metallurgica, 1982, 30[1], 251-5