The multiplication of dislocations under the effect of ultrasound and the evolution of dislocation loops generated bу the dislocation source have been studied bу the computer modeling technique. Conditions have been determined under which the generation of loops proceeds bу the classical and bу nontraditional mechanisms. Relationships have been estanblished between the ultrasonic frequency and the coefficient of dynamic viscosity on the one hand and the critical parameters, such as the dislocation source length, stress amplitude, and stress interval within wich the new mechanism is operative; on the other hand. Conditions have been determined under which the dislocations generated in the crystal bу the nontraditional mechanism are accumulated.
Department of Molecular Physics and Physical Measurements
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