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Abstract
Abstract Evolution of the defect structure of the cascade region (CR) formed under irradiation in fcc materials, both with a large stacking fault energy (SFE) and with a small one, has been studied by use of the molecular dynamics technique (MDT). It is shown that when a 1 keV cascade is simulated under identical conditions a tangle of vacancy dislocations is formed in the first case, and a depleted zone in the second case. The connections of these observations with irradiation creep and swelling of alloys, both with a large (on the base of Ni and Al) and a small (Ag, Cu, Au, stainless steel, etc.) SFE, is discussed. A comparison with experimental results is also made.
Published Version
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