Structural Turbulence of Plastic Flow and Ductile Fracture in Low-Alloy Steel under Lattice Curvature Conditions

V. E. Panin, V. E. Egorushkin, P. V. Kuznetsov, N. K. Galchenko, A. R. Shugurov, I. V. Vlasov, Ye Ye Deryugin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Abstract: The possibility of the structural turbulence ofplastic flow and ductile fracture in low-carbon and low-alloy steel09Mn2Si is shown by fracture toughness measurements and uniaxial tensionof chevron-notched specimens at 20°C. The conditions for the structuralturbulence of plastic deformation of solids are determined which providehigh fracture toughness. The decisive functional role is played by thelattice curvature, the appearance of mesoscopic structural states in thelattice interstices at the nanoscale, the activation of self-consistentrotational motion in the hierarchy of mesoscopic structural levels, thepresence of free volume, and the possibility of structuraltransformations at the nanoscale. A nonlinear theory of describingstructural turbulence in a deformable solid is discussed.

Original languageEnglish
Pages (from-to)279-290
Number of pages12
JournalPhysical Mesomechanics
Volume23
Issue number4
DOIs
Publication statusPublished - 1 Jul 2020

Keywords

  • Hierarchical self-organization of scale levels of rotational modes
  • Lattice curvature
  • Mesoscopic interstitial structural states
  • Nanostructural transformation
  • Structural turbulence

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces

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    Panin, V. E., Egorushkin, V. E., Kuznetsov, P. V., Galchenko, N. K., Shugurov, A. R., Vlasov, I. V., & Deryugin, Y. Y. (2020). Structural Turbulence of Plastic Flow and Ductile Fracture in Low-Alloy Steel under Lattice Curvature Conditions. Physical Mesomechanics, 23(4), 279-290. https://doi.org/10.1134/S1029959920040013