Small-angle neutron scattering investigation of plastically deformed stainless steel

Vassily Lebedev, Vitaly Didenko, Alexander Lapin, Kir Konoplev, Diana Orlova, G. Török, Eszter Rétfalvi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The microstuctural evolution of plastically deformed steels has been studied by small-angle neutron scattering at ambient temperature in the range of momentum transfer q=(4π/λ)sin(Θ/2) =0.01-5 nm-1 where λ is neutron wavelength and Θ is the scattering angle. Samples of austenite stainless steels were pulled on a standard bench to cause a plastic deformation, S=0-60%, up to the fracture of the material. As a result of the deformation an increase of an order of magnitude was observed in the scatterred intensity I(q)∼1/[1+(qRc)2](6-Ds)/2. The analysis of the I(q) distribution has shown the surface fractal nature of the observed nano-scale structures. The evolution of internal surface via intensive growth of pores (size RC·20-40 nm) was found and a linear decrease of the surface fractal dimension 2.9≥Ds(S)≥2.1 was observed. These findings can be used to design the fracture criteria for materials of industrial application.

Original languageEnglish
Pages (from-to)629-631
Number of pages3
JournalJournal of Applied Crystallography
Volume36
Issue number3 I
DOIs
Publication statusPublished - 2003

Fingerprint

Small Angle Scattering
Fractals
Stainless Steel
Neutrons
Neutron scattering
stainless steels
neutron scattering
Steel
fractals
Plastics
Momentum transfer
Fractal dimension
austenite
seats
plastic deformation
ambient temperature
Industrial applications
Temperature
Pore size
momentum transfer

Keywords

  • Fracture
  • Plastic deformation
  • SANS

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Structural Biology

Cite this

Small-angle neutron scattering investigation of plastically deformed stainless steel. / Lebedev, Vassily; Didenko, Vitaly; Lapin, Alexander; Konoplev, Kir; Orlova, Diana; Török, G.; Rétfalvi, Eszter.

In: Journal of Applied Crystallography, Vol. 36, No. 3 I, 2003, p. 629-631.

Research output: Contribution to journalArticle

Lebedev, V, Didenko, V, Lapin, A, Konoplev, K, Orlova, D, Török, G & Rétfalvi, E 2003, 'Small-angle neutron scattering investigation of plastically deformed stainless steel', Journal of Applied Crystallography, vol. 36, no. 3 I, pp. 629-631. https://doi.org/10.1107/S0021889803003996
Lebedev, Vassily ; Didenko, Vitaly ; Lapin, Alexander ; Konoplev, Kir ; Orlova, Diana ; Török, G. ; Rétfalvi, Eszter. / Small-angle neutron scattering investigation of plastically deformed stainless steel. In: Journal of Applied Crystallography. 2003 ; Vol. 36, No. 3 I. pp. 629-631.
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