The influence of the initial structural state of armco iron on the ultrasonic treatment effect

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Abstract

Methods of diffraction electron microscopy have been used to examine the types of dislocation substructures formed in the surface layer of armco-iron specimens subjected to ultrasonic treatment. It is shown that banded or equiaxed ultrafine-grained structure can be generated in the material depending on its initial structural state. The special features of the plastic deformation and fracture of the ultrafine-grained surface layers of the specimens under uniaxial tension are described. The extent to which the mechanical properties of the examined material are improved by ultrasonic treatment has been found to depend on its initial state.

Original languageEnglish
Pages (from-to)85-93
Number of pages9
JournalRussian Physics Journal
Volume52
Issue number1
DOIs
Publication statusPublished - 1 Jan 2009

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Keywords

  • Mechanical properties
  • Plastic deformation
  • Surface layer
  • Tension
  • Ultrafine-grained structure
  • Ultrasonic treatment

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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