Structural and phase states in austenitic steel subjected to high-cycle fatigue

S. V. Vorob'ev, Yu F. Ivanov, V. E. Gromov, M. P. Ivakhin

Research output: Contribution to journalArticle

Abstract

The destruction surface and defect substructure of the Fe-0.1C-1.71Mn-0.92Ti-18.2Cr-10.4Ni-0.71Si steel subjected to high-cycle fatigue tests is investigated by the methods of scanning and transmission electron microscopy. It is demonstrated that the fatigue tests, irrespective of the loading scheme (continuous or under conditions of intermediate stimulation by pulse current), result in the formation of a structural gradient in the material manifested through regular changes of the relief parameters of the destruction surface and defect substructure with increasing distance from the loading surface (face or back specimen side). It is revealed that scalar and excess dislocation density, volume fraction of grains that comprise deformation microtwins, and degree of dislocation substructure organization maximize near the free specimen surface.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalRussian Physics Journal
Volume49
Issue number1
DOIs
Publication statusPublished - Jan 2006

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substructures
steels
cycles
fatigue tests
destruction
defects
stimulation
scalars
gradients
transmission electron microscopy
scanning electron microscopy
pulses

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Structural and phase states in austenitic steel subjected to high-cycle fatigue. / Vorob'ev, S. V.; Ivanov, Yu F.; Gromov, V. E.; Ivakhin, M. P.

In: Russian Physics Journal, Vol. 49, No. 1, 01.2006, p. 97-104.

Research output: Contribution to journalArticle

Vorob'ev, S. V. ; Ivanov, Yu F. ; Gromov, V. E. ; Ivakhin, M. P. / Structural and phase states in austenitic steel subjected to high-cycle fatigue. In: Russian Physics Journal. 2006 ; Vol. 49, No. 1. pp. 97-104.
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