Abstract
Changes in the structure and properties of electrodeposited iron during its aging are caused by migration of vacancies. Determination of the effective diffusion coefficient of vacancies taking into account the grain structure of the coating remains a relevant method of studying the processes associated with this migration. The aim of the work was to establish the relations between the structural features of electrodeposited iron and relaxation of internal stresses during aging and annealing.The size of the grain was studied using scanning and transmission electron microscopes, internal stresses were determined on an original installation. Time parameters of internal stress relaxation were calculated using the Comsol Multiphysics program.In the course of the work, it was found that the magnitude of the effective diffusion coefficient of vacancies is significantly affected by the size of the grain, which, in its turn, affects the character of relaxation of internal stresses in the iron coating. The rate of internal stress relaxation during aging is faster when the grain size is smaller.
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