Structure-phase states and fracture surface in fatigue loaded and failed austenitic stainless steel

Sergey V. Vorobyov, Victor V. Kovalenko, Yuri F. Ivanov, Victor E. Gromov, Sergey V. Konovalov

Research output: Contribution to journalArticle

Abstract

Studies of fracture surface and defect substructure state of 08Cr18Ni10Ti steel subjected to asymmetrical cyclic bending have been carried out by methods of optical, scanning and transmission electron microscopy. It has been shown that fatigue tests result in the formation of structural gradient expressed in regular change of the grain structure parameters, fracture surface relief, and defect substructure in the material as the distance to the loading surface increases. It has been revealed that values of scalar and excess dislocation density, volume fraction of grains containing deformation microtwins, the degree of dislocation substructure organization reach the maximum values near the surface of sample.

Original languageEnglish
Pages (from-to)39-47
Number of pages9
JournalArabian Journal for Science and Engineering
Volume31
Issue number2 C
Publication statusPublished - Dec 2006

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austenitic stainless steels
substructures
fatigue tests
defects
steels
scalars
gradients
transmission electron microscopy
scanning electron microscopy

Keywords

  • Dislocation substructure
  • Fatigue
  • Load
  • Physics: experimental results in solid state physics

ASJC Scopus subject areas

  • General

Cite this

Structure-phase states and fracture surface in fatigue loaded and failed austenitic stainless steel. / Vorobyov, Sergey V.; Kovalenko, Victor V.; Ivanov, Yuri F.; Gromov, Victor E.; Konovalov, Sergey V.

In: Arabian Journal for Science and Engineering, Vol. 31, No. 2 C, 12.2006, p. 39-47.

Research output: Contribution to journalArticle

Vorobyov, Sergey V. ; Kovalenko, Victor V. ; Ivanov, Yuri F. ; Gromov, Victor E. ; Konovalov, Sergey V. / Structure-phase states and fracture surface in fatigue loaded and failed austenitic stainless steel. In: Arabian Journal for Science and Engineering. 2006 ; Vol. 31, No. 2 C. pp. 39-47.
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AU - Konovalov, Sergey V.

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