The tracer diffusion of H in the body-centered cubic β phase of TiH0.57 and TiH0.70 was measured at 390 to 416C and 282 to 352C, respectively. The results could be described by:

TiH0.70:     D (cm2/s) = 6.4 x 10-4 exp[-0.147(eV)/kT]

TiH0.57:     D (cm2/s) = 7.8 x 10-4 exp[-0.150(eV)/kT]

E.H.Sevilla, R.M.Cotts: Physical Review B, 1988, 37[12], 6813-20