Influence of the strengthening phase scale characteristics on the formation the plastic shear zone in heterophaz alloys with dispersed incoherent particles | Izvestiya vuzov. Fizika. 2019. № 12. DOI: 10.17223/00213411/62/12/81

Influence of the strengthening phase scale characteristics on the formation the plastic shear zone in heterophaz alloys with dispersed incoherent particles

The description and theoretical analysis of the shear zone - the mezoscale of plastic deformation of dispersion-hardened crystalline materials with an aluminum matrix and incoherent particles was carried out by using the methods of mathematical modeling. The investigation was conducted from the microlevel which includes modelling the formation of linear and point strain defects, to the macrolevel with description of the behavior of the flow stress curves. It is shown that the size of the shear zone decreases with increasing a degree of deformation in all materials under investigation with hardening by particles of various sizes. On average, the shear zone diameter is practically independent of the scale characteristics of the hardening phase. It was revealed that the formation and accumulation in the shear zone of various types of dislocations is largely determined by the particle size.

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Keywords

математическое моделирование, дисперсно-упрочнённые материалы, пластическая деформация, наноразмерные частицы, деформационное упрочнение, плотность дислокаций, mathematical model, dispersion-hardened materials, plastic deformation, nanoparticles, strain hardening, dislocation density

Authors

NameOrganizationE-mail
Kovalevskaya T.A.Tomsk State University of Architecture and Building; National Research Tomsk State Universitytakov47@mail.ru
Daneyko O.I.Tomsk State University of Architecture and Building; National Research Tomsk State Universityolya_dan@mail.ru
Всего: 2

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 Influence of the strengthening phase scale characteristics on the formation the plastic shear zone in heterophaz alloys with dispersed incoherent particles | Izvestiya vuzov. Fizika. 2019. № 12. DOI: 10.17223/00213411/62/12/81

Influence of the strengthening phase scale characteristics on the formation the plastic shear zone in heterophaz alloys with dispersed incoherent particles | Izvestiya vuzov. Fizika. 2019. № 12. DOI: 10.17223/00213411/62/12/81