The effect of ultrasonic treatment on mechanical behavior of titanium and steel specimens

A. V. Panin, V. A. Klimenov, Yu I. Pochivalov, A. A. Son, M. S. Kazachenok

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The effect of surface ultrasonic treatment on plastic deformation and mechanical properties of polycrystalline titanium and low-carbon steel specimens under tension was studied. The deformation pattern was investigated using optical, transmission electron, scanning electron and scanning tunneling microscopy. It was shown that the material within hardened surface layers is characterized by ultrafine-grained structure. This structure results in plastic flow localization at different scale levels. Localized deformation meso-bands induce weak work hardening of the material. Plastic flow macro-localization causes a drop of the external deforming stress. The peculiar mechanisms of deformation localization within the specimen surface layer govern formation of a banded dislocation substructure in the bulk of the specimen.

Original languageEnglish
Pages (from-to)163-172
Number of pages10
JournalTheoretical and Applied Fracture Mechanics
Volume41
Issue number1-3
DOIs
Publication statusPublished - Apr 2004

Keywords

  • Meso-mechanics
  • Plastic deformation
  • Surface treatment
  • Tension
  • Ultrafine-grained structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Applied Mathematics

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