The interaction between a line edge dislocation and a self-interstitial atom cluster in α-iron was evaluated by using molecular dynamics calculations. When the distance between the slip plane of the dislocation and the cluster centroid was more than twice as large as the cluster radius and the distance between the slip plane and the nearest part of the cluster was more than 1 nm, the results obtained by molecular dynamics simulation agree well with that by the dislocation theory. The calculation temperature does not affect the stable position of the cluster near the dislocation. The difference between molecular dynamics and dislocation theory, and the limitation of the infinitesimal small cluster approximation, were considered.

A Study of the Interaction between Irradiation Induced-Defect and a Line Dislocation in BCC-Iron. S.Fujita, T.Okita, E.Kuramoto, N.Sekimura: Journal of Nuclear Materials, 2009, 386-388, 93-6