Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
Founded at 2009


The effect of nanoscale defects on the dynamic yield stress of alloys

V.V. Malashenko1,2, T.I. Malashenko3,4

1 Donetsk Institute for Physics and Engineering named after A.A. Galkin
2 Donetsk National University
3 Donetsk National Technical University
4 Donetsk National University of Economics and Trade named after Mikhail Tugan-Baranovskiy

DOI: 10.26456/pcascnn/2020.12.136

Short communication

Abstract: The high strain rate deformation of aged alloys containing Guinier-Preston zones is theoretically analyzed. The analytical expression for the contribution of the Guinier–Preston zones to the value of the dynamic yield stress has been obtained. It is shown that the dynamic drag of dislocations by nanoscale defects differs significantly from the drag by point defects.

Keywords: dislocations, Guinier-Preston zones, point defects, nanomaterials, high strain rate deformation, dynamic yield stress

  • Vadim V. Malashenko – Dr. Sc., Professor, Chief Researcher of the Department «Theory of kinetic and electronic properties of nonlinear systems», Donetsk Institute for Physics and Engineering named after A.A. Galkin, Professor, Department of Radiophysics and Infocommunication Technologies Donetsk National University
  • Tatyana I. Malashenko – Senior Lecturer, Department of Physics, Donetsk National Technical University, Senior Lecturer, Department of Natural Sciences and Life Safety Donetsk National University of Economics and Trade named after Mikhail Tugan-Baranovskiy

Reference:

Malashenko, V.V. The effect of nanoscale defects on the dynamic yield stress of alloys / V.V. Malashenko, T.I. Malashenko // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. – Tver: TSU, 2020. — I. 12. — P. 136-141. DOI: 10.26456/pcascnn/2020.12.136. (In Russian).

Full article (in Russian): download PDF file

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