Deformation behavior and spall fracture of the Hadfield steel under shock-wave loading

S. F. Gnyusov, V. P. Rotshtein, S. D. Polevin, S. A. Kitsanov

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Comparative studies of regularities in plastic deformation and fracture of the Hadfield polycrystalline steel upon quasi-static tension, impact failure, and shock-wave loading with rear spall are performed. The SINUS-7 accelerator was used as a shock-wave generator. The electron beam parameters of the accelerator were the following: maximum electron energy was 1. 35 MeV, pulse duration at half-maximum was 45 ns, maximum energy density on a target was 3. 4·1010 W/cm2, shock-wave amplitude was ~20 GPa, and strain rate was ~106 s-1. It is established that the failure mechanism changes from ductile transgranular to mixed ductile-brittle intergranular one when going from quasi-static tensile and Charpy impact tests to shock-wave loading. It is demonstrated that a reason for the intergranular spallation is the strain localization near the grain boundaries containing a carbide interlayer.

Original languageEnglish
Pages (from-to)1046-1052
Number of pages7
JournalRussian Physics Journal
Volume53
Issue number10
DOIs
Publication statusPublished - Mar 2011

Fingerprint

shock waves
steels
shock wave generators
accelerators
Charpy impact test
spallation
regularity
carbides
plastic deformation
strain rate
interlayers
pulse duration
grain boundaries
flux density
electron beams
electron energy

Keywords

  • Hadfield steel
  • High-current electron beam
  • Spall fracture

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Deformation behavior and spall fracture of the Hadfield steel under shock-wave loading. / Gnyusov, S. F.; Rotshtein, V. P.; Polevin, S. D.; Kitsanov, S. A.

In: Russian Physics Journal, Vol. 53, No. 10, 03.2011, p. 1046-1052.

Research output: Contribution to journalArticle

Gnyusov, S. F. ; Rotshtein, V. P. ; Polevin, S. D. ; Kitsanov, S. A. / Deformation behavior and spall fracture of the Hadfield steel under shock-wave loading. In: Russian Physics Journal. 2011 ; Vol. 53, No. 10. pp. 1046-1052.
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