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 | |
| Publication status | Published - Aug 1 2007 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Materials Science(all)
- Nuclear Energy and Engineering
Cite this
Brittle-ductile transitions in vanadium and iron-chromium. / Joseph, T. D.; Tanaka, M.; Wilkinson, A. J.; Roberts, S. G.
In: Journal of Nuclear Materials, Vol. 367-370 A, No. SPEC. ISS., 01.08.2007, p. 637-643.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Brittle-ductile transitions in vanadium and iron-chromium
AU - Joseph, T. D.
AU - Tanaka, M.
AU - Wilkinson, A. J.
AU - Roberts, S. G.
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.
UR - http://www.scopus.com/inward/record.url?scp=34447500392&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34447500392&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2007.03.077
DO - 10.1016/j.jnucmat.2007.03.077
M3 - Article
AN - SCOPUS:34447500392
VL - 367-370 A
SP - 637
EP - 643
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - SPEC. ISS.
ER -