Faraday communications. Diffusion of hydrogen in Ti3Al
Abstract
The diffusivity of hydrogen in the intermetallic compound Ti3Al has been measured in the temperature range 973–1323 K. The activation energy for diffusion has been found to be nearly twice those for pure Ti and Al. A possible origin of this large activation energy is the presence of ordered AI atoms in Ti3Al and the difference in the heat of solution of hydrogen between Ti and Al.