Brittle-ductile transitions in vanadium and iron-chromium

T. D. Joseph, M. Tanaka, A. J. Wilkinson, S. G. Roberts

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We report ongoing experimental work on fracture and brittle-ductile transitions in vanadium, iron and iron-9% chromium single crystals and polycrystals. Tests were carried out by four-point bending of pre-cracked specimens in the temperature range 77-300 K, at a variety of strain rates. For a given material, variation of the brittle-ductile transition temperature with strain rate allows us to estimate an activation energy for the controlling process; for vanadium this was found to be ∼0.37 eV, for iron ∼0.21 eV and for iron-9% chromium ∼0.11 eV.

Original languageEnglish
Pages (from-to)637-643
Number of pages7
JournalJournal of Nuclear Materials
Volume367-370 A
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Aug 1 2007

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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