An estimate of the irradiation creep rate in α-Fe based on computer simulation of vacancy pipe diffusion along <100>{010} dislocations

The effect of external loading on vacancy pipe diffusion along a dislocation line is studied. It is shown that the external load leads to orientational dependence of dislocation sink strengths due to polarization of vacancies in the dislocation core. Computer calculations of the dipole tensor for vacancy diffusion in the core of a [100](010) dislocation in α-Fe are performed to obtain an estimate of the irradiation creep compliance value. (orig.)