Brittle-ductile transitions in vanadium and iron-chromium

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

doi:10.1016/j.jnucmat.2007.03.077

Brittle-ductile transitions in vanadium and iron-chromium

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

Research output: Contribution to journal › Article › peer-review

29 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 language	English
Pages (from-to)	637-643
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	367-370 A
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jnucmat.2007.03.077
Publication status	Published - Aug 1 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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title = "Brittle-ductile transitions in vanadium and iron-chromium",

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.",

author = "Joseph, {T. D.} and M. Tanaka and Wilkinson, {A. J.} and Roberts, {S. G.}",

note = "Funding Information: The work reported here was funded by UKAEA Culham; our thanks also to Professor S.L. Dudarev for useful discussions. ",

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AU - Joseph, T. D.

AU - Tanaka, M.

AU - Wilkinson, A. J.

AU - Roberts, S. G.

N1 - Funding Information: The work reported here was funded by UKAEA Culham; our thanks also to Professor S.L. Dudarev for useful discussions.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - 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.

AB - 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.

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JF - Journal of Nuclear Materials

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Brittle-ductile transitions in vanadium and iron-chromium

Abstract

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