Details
| Original language | English |
|---|---|
| Pages (from-to) | 144-149 |
| Number of pages | 6 |
| Journal | Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques |
| Volume | 98 |
| Issue number | 2 |
| Publication status | Published - Feb 2007 |
| Externally published | Yes |
Abstract
The low stacking fault energy and high carbon content in Hadfield steel make twinning the basic deformation mechanism from the onset of plastic deformation in [111] and [011] oriented single crystals in tension at T = 77-300 K. Alloying with aluminium (2.7 Al in wt.%) results in an increase of stacking fault energy from 0.03 J m2 to 0.05 J m-2 and moves twinning to higher degrees of deformation (ϵpl > 15%). In aluminium-free [1-23] crystals twinning starts after 20% strain. For [123], [001] orientations, aluminiumadditions change the dislocation arrangement from a uniform distribution to a planar dislocation arrangment and also suppress twinning. Intersections of dislocation pile-ups were found to be the governing factor for hardening in the aluminium-Alloyed [001] crystals.
Keywords
- Hadfield steel, Microstructure, Single crystal, Stacking fault energy, Twinning
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, Vol. 98, No. 2, 02.2007, p. 144-149.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
AU - Astafurova, Elena G.
AU - Kireeva, Irina V.
AU - Chumlyakov, Yuriy I.
AU - Maier, Hans J.
AU - Sehitoglu, Huseyin
PY - 2007/2
Y1 - 2007/2
N2 - The low stacking fault energy and high carbon content in Hadfield steel make twinning the basic deformation mechanism from the onset of plastic deformation in [111] and [011] oriented single crystals in tension at T = 77-300 K. Alloying with aluminium (2.7 Al in wt.%) results in an increase of stacking fault energy from 0.03 J m2 to 0.05 J m-2 and moves twinning to higher degrees of deformation (ϵpl > 15%). In aluminium-free [1-23] crystals twinning starts after 20% strain. For [123], [001] orientations, aluminiumadditions change the dislocation arrangement from a uniform distribution to a planar dislocation arrangment and also suppress twinning. Intersections of dislocation pile-ups were found to be the governing factor for hardening in the aluminium-Alloyed [001] crystals.
AB - The low stacking fault energy and high carbon content in Hadfield steel make twinning the basic deformation mechanism from the onset of plastic deformation in [111] and [011] oriented single crystals in tension at T = 77-300 K. Alloying with aluminium (2.7 Al in wt.%) results in an increase of stacking fault energy from 0.03 J m2 to 0.05 J m-2 and moves twinning to higher degrees of deformation (ϵpl > 15%). In aluminium-free [1-23] crystals twinning starts after 20% strain. For [123], [001] orientations, aluminiumadditions change the dislocation arrangement from a uniform distribution to a planar dislocation arrangment and also suppress twinning. Intersections of dislocation pile-ups were found to be the governing factor for hardening in the aluminium-Alloyed [001] crystals.
KW - Hadfield steel
KW - Microstructure
KW - Single crystal
KW - Stacking fault energy
KW - Twinning
UR - http://www.scopus.com/inward/record.url?scp=85033370728&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85033370728
VL - 98
SP - 144
EP - 149
JO - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
JF - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
SN - 0044-3093
IS - 2
ER -