▎ 摘　　要

A theoretical model is suggested which describes distribution of grain boundary (GB) dislocations at GBs initially containing partial (non-topological) disclinations in polycrystalline graphene and ultrafine-grained metals. Such partial disclinations at GBs are associated with experimentally observed structural irregularities of real GBs in graphene and metals. Within the suggested model, spatial distribution of GB dislocations basic structural units of GBs are theoretically revealed as those depending on GB misorientation parameters and characteristics (strength, spatial location) of pre-existent GB disclinations in polycrystalline graphene and ultrafine-grained metals.