The atomic displacement fields of dislocation loops of size 1–5nm formed by self-interstitial atoms in α-Fe were calculated using isotropic elasticity theory and anisotropic elasticity theory, and compared with atomic simulations for loops formed by 43–275 self-interstitial atoms. The atomic displacements predicted by anisotropic elasticity theory were in good agreement with those given by the atomistic simulations at distances greater than 3 nm from the loop plane, but the displacements predicted by isotropic elasticity theory showed significant discrepancies at distances up to 15 nm.

On the Atomic Displacement Fields of Small Interstitial Dislocation Loops. Z.Zhou, S.L.Dudarev, M.L.Jenkins, A.P.Sutton, M.A.Kirk: Materials Science and Engineering A, 2005, 400-401, 80-3