Abstract:
In the present work the developed technique and the results of numerical calculations of researching edge dislocation $\frac a2$<$111$>$\{110\}$ in bcc-iron under temperatures $0.1$ Ê and $300$ Ê behavior are presented. The edge dislocation, containing hydrogen Cottrell atmosphere, behavior near a zero-dimensional crystal defect has been considered. It has been shown that hydrogen may reduce the mechanical stress required to the dislocation overcome the field, made by that defect, by two times.