Influence of point defect misfit parameter on the dynamic yield strength of metals and alloys
Malashenko V. V.1
1Galkin Donetsk Institute for Physics and Engineering, Donetsk, Russia
Email: malashenko@donfti.ru
The motion of an ensemble of edge dislocations in case of high strain rate deformation of metals and alloys with a high concentration of point defects was theoretically analyzed. An analytical expression of the dependence of the dynamic yield strength on the point defect misfit parameter for various cases of high strain rate deformation is obtained. A qualitative analysis of the obtained results has been performed within the framework of the theory of dynamic interaction of defects (DID). Numerical estimates of the field of applicability of the obtained results have been made. Keywords: dislocations, point defects, high strain rate deformation.
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