3 research outputs found
A study of phase separation processes in presence of dislocations in binary systems subjected to irradiation
Dislocation-assisted phase separation processes in binary systems subjected
to irradiation effect are studied analytically and numerically. Irradiation is
described by athermal atomic mixing in the form of ballistic flux with
spatially correlated stochastic contribution. While studying the dynamics of
domain size growth we have shown that the dislocation mechanism of phase
decomposition delays the ordering processes. It is found that spatial
correlations of the ballistic flux noise cause segregation of dislocation cores
in the vicinity of interfaces effectively decreasing the interface width. A
competition between regular and stochastic components of the ballistic flux is
discussed.Comment: 22 pages, 11 figure
Modeling the Evolution of the Microstructure of Crystalline Systems Under Irradiation
Моделювання еволюції мікроструктури кристалічних систем під дією опромінення. У роботі розглянуто процеси структуроутворення точкових дефектів вакансійного типу у кристалічних системах, підданих сталій дії опромінення, на прикладі нікелю. Отримані результати узгоджуються з експериментальними спостереженнями за процесами дефектоутворення при опромінюванні в реакторних умовах.The paper discusses the processes of structure formation of point defects in crystalline vacancy type systems subjected to constant exposure, to the example of nickel. These results are consistent with experimental observations of defect formation during irradiation processes in reactor conditions