The lattice distortion produced by vacancies in iron, molybdenum and vanadium

Abstract

The lattice distortion produced by an isolated vacancy in iron, discrete lattice model. In addition the interaction energies between pairs of vacancies in these metals have been computed as a function of their separation. The lattice model assumes a nonequilibrium pairwise potential which includes interactions out to second nearest neighbours and the calculations are performed in reciprocal space. The asymptotic displacement fields have been compared with the corresponding elasticity results for molybdenum and vanadium.