Self-diffusion of Ti, Zr, and Hf in their hcp phases, and diffusion of Nb95 in hcp Zr

Abstract

Preliminary values for the self-diffusion constants of α-(hexagonal cp) Hf and new values for the self-diffusion constants of α-(hcp) Zr are given. A new determination of the latter was considered necessary since existing values disagree widely and the experimental methods employed in their determination are not considered to be sound. Values obtained by the authors for the self-diffusion constants of α-Ti are reviewed.