Fatigue life enhancement by irradiation of 12Cr1MoV steel with a Zr+ ion beam. Mesoscale deformation and fracture

S. V. Panin, I. V. Vlasov, Victor Petrovich Sergeev, B. B. Ovechkin, P. O. Marushchak, Sunder Ramasubbu, P. S. Lyubutin, V. V. Titkov

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Abstract

The structure and properties of 12Cr1MoV steel irradiated with a zirconium ion beam were studied by optical microscopy, scanning electron microscopy, and micro- and nanoindentation. It is shown that the modification covers the entire cross-section of the irradiated specimens to a depth of 1 mm. The data on irradiation-induced structural changes are used to interpret the changes in mechanical properties of the irradiated specimens under static and cyclic loading. Particular attention is given to analysis of strain estimation by the digital image correlation method.

Original languageEnglish
Pages (from-to)261-272
Number of pages12
JournalPhysical Mesomechanics
Volume18
Issue number3
DOIs
Publication statusPublished - 24 Jul 2015

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Keywords

  • deformation
  • digital image correlation
  • fatigue life
  • fracture
  • ion beam treatment
  • surface nanostructuring

ASJC Scopus subject areas

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

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