Details
| Original language | English |
|---|---|
| Pages (from-to) | 120-126 |
| Number of pages | 7 |
| Journal | Materials Science and Engineering A |
| Volume | 593 |
| Publication status | Published - 18 Nov 2013 |
Abstract
The temperature-dependent relative contributions of slip, twinning, and slip-twin interactions to the deformation response of a high-manganese austenitic steel were investigated under impact loading. Thorough transmission electron microscopy and scanning electron microscopy showed that either twinning or slip dictates the deformation response under impact loading, as opposed to the slip-twin interactions typically observed in high-manganese austenitic steels under tensile or compressive loading. Specifically, slip dominates at elevated temperatures, whereas slip activity is restricted by enhanced twinning at low temperatures, and the parameters, such as twin volume fraction, twin thickness and length, or glide dislocation density, show a strong temperature-dependence. The enhanced activity of only one mechanism rather than the slip-twin interaction is associated with the high-strain rate deformation taking place under impact loading, which does not allow for significant interaction of the two mechanisms.
Keywords
- High-manganese austenitic steel, Impact, Microstructure, Slip, Twinning
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials Science and Engineering A, Vol. 593, 18.11.2013, p. 120-126.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the role of slip-twin interactions on the impact behavior of high-manganese austenitic steels
AU - Toker, S. M.
AU - Canadinc, D.
AU - Taube, A.
AU - Gerstein, G.
AU - Maier, H. J.
N1 - Funding information: The Turkish part of this study was supported by the Scientific and Technological Research Council of Turkey (TÜB?TAK) under Grant 112M806 .
PY - 2013/11/18
Y1 - 2013/11/18
N2 - The temperature-dependent relative contributions of slip, twinning, and slip-twin interactions to the deformation response of a high-manganese austenitic steel were investigated under impact loading. Thorough transmission electron microscopy and scanning electron microscopy showed that either twinning or slip dictates the deformation response under impact loading, as opposed to the slip-twin interactions typically observed in high-manganese austenitic steels under tensile or compressive loading. Specifically, slip dominates at elevated temperatures, whereas slip activity is restricted by enhanced twinning at low temperatures, and the parameters, such as twin volume fraction, twin thickness and length, or glide dislocation density, show a strong temperature-dependence. The enhanced activity of only one mechanism rather than the slip-twin interaction is associated with the high-strain rate deformation taking place under impact loading, which does not allow for significant interaction of the two mechanisms.
AB - The temperature-dependent relative contributions of slip, twinning, and slip-twin interactions to the deformation response of a high-manganese austenitic steel were investigated under impact loading. Thorough transmission electron microscopy and scanning electron microscopy showed that either twinning or slip dictates the deformation response under impact loading, as opposed to the slip-twin interactions typically observed in high-manganese austenitic steels under tensile or compressive loading. Specifically, slip dominates at elevated temperatures, whereas slip activity is restricted by enhanced twinning at low temperatures, and the parameters, such as twin volume fraction, twin thickness and length, or glide dislocation density, show a strong temperature-dependence. The enhanced activity of only one mechanism rather than the slip-twin interaction is associated with the high-strain rate deformation taking place under impact loading, which does not allow for significant interaction of the two mechanisms.
KW - High-manganese austenitic steel
KW - Impact
KW - Microstructure
KW - Slip
KW - Twinning
UR - http://www.scopus.com/inward/record.url?scp=84888222804&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2013.11.033
DO - 10.1016/j.msea.2013.11.033
M3 - Article
AN - SCOPUS:84888222804
VL - 593
SP - 120
EP - 126
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
ER -