Influence of the Guinier–Preston Zones on the Concentration Dependence of the Yield Point of the Aged Two-Component Alloys in Conditions of High-Speed Deformation
- Authors: Malashenko V.V.1,2
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Affiliations:
- Galkin Donetsk Institute for Physics and Engineering
- Donetsk National University
- Issue: Vol 61, No 10 (2019)
- Pages: 1800-1803
- Section: Mechanical Properties, Physics of Strength, and Plasticity
- URL: https://journal-vniispk.ru/1063-7834/article/view/206273
- DOI: https://doi.org/10.1134/S106378341910024X
- ID: 206273
Cite item
Abstract
The glide of an ensemble of edge dislocations at the high-speed deformation of an aged binary metal alloy is theoretically analyzed. The yield stress of the alloy is a nonmonotone function of the second component concentration, which has a maximum and a minimum under certain conditions. The maximum corresponds to the transfer from the dominating influence of dislocation collective interaction on creation of a spectral gap to the prevalence of the influence of collective interaction of atoms of the second component. The minimum of the obtained curve corresponds to the transfer from the prevalence of the drag of the dislocation by the Guinier–Preston zones to the prevalence of its drag by the atoms of the second component.
Keywords
About the authors
V. V. Malashenko
Galkin Donetsk Institute for Physics and Engineering; Donetsk National University
Author for correspondence.
Email: malashenko@fti.dn.ua
Ukraine, Donetsk, 83114; Donetsk, 283001
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