Details
| Original language | English |
|---|---|
| Pages (from-to) | 518-524 |
| Number of pages | 7 |
| Journal | Materials Science and Engineering A |
| Volume | 499 |
| Issue number | 1-2 |
| Publication status | Published - 15 Jan 2009 |
| Externally published | Yes |
Abstract
The fatigue performance of a high-manganese austenitic steel featuring the twinning-induced plasticity (TWIP) effect was investigated in both thermomechanically treated rolled and pre-deformed conditions. A thorough set of mechanical experiments and microstructural analyses demonstrated that microstructural evolutions during high-strain monotonic and low-strain cyclic deformations differ significantly. Specifically, a high twin density is obtained as a result of monotonic deformation, and a low twin density, yet a noticeable increase in twin thickness, is observed in the fatigued samples. Furthermore, the fatigue performance of the pre-deformed TWIP steel samples is superior to that of the as-received steel, which is attributed to the enhanced interaction of glide dislocations with twins of increased density owing to the monotonic pre-deformation.
Keywords
- Bauschinger effect, Fatigue, Microstructure, Twinning, Twinning-induced plasticity, TWIP steel
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. 499, No. 1-2, 15.01.2009, p. 518-524.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The role of monotonic pre-deformation on the fatigue performance of a high-manganese austenitic TWIP steel
AU - Niendorf, T.
AU - Lotze, C.
AU - Canadinc, D.
AU - Frehn, A.
AU - Maier, H. J.
PY - 2009/1/15
Y1 - 2009/1/15
N2 - The fatigue performance of a high-manganese austenitic steel featuring the twinning-induced plasticity (TWIP) effect was investigated in both thermomechanically treated rolled and pre-deformed conditions. A thorough set of mechanical experiments and microstructural analyses demonstrated that microstructural evolutions during high-strain monotonic and low-strain cyclic deformations differ significantly. Specifically, a high twin density is obtained as a result of monotonic deformation, and a low twin density, yet a noticeable increase in twin thickness, is observed in the fatigued samples. Furthermore, the fatigue performance of the pre-deformed TWIP steel samples is superior to that of the as-received steel, which is attributed to the enhanced interaction of glide dislocations with twins of increased density owing to the monotonic pre-deformation.
AB - The fatigue performance of a high-manganese austenitic steel featuring the twinning-induced plasticity (TWIP) effect was investigated in both thermomechanically treated rolled and pre-deformed conditions. A thorough set of mechanical experiments and microstructural analyses demonstrated that microstructural evolutions during high-strain monotonic and low-strain cyclic deformations differ significantly. Specifically, a high twin density is obtained as a result of monotonic deformation, and a low twin density, yet a noticeable increase in twin thickness, is observed in the fatigued samples. Furthermore, the fatigue performance of the pre-deformed TWIP steel samples is superior to that of the as-received steel, which is attributed to the enhanced interaction of glide dislocations with twins of increased density owing to the monotonic pre-deformation.
KW - Bauschinger effect
KW - Fatigue
KW - Microstructure
KW - Twinning
KW - Twinning-induced plasticity
KW - TWIP steel
UR - http://www.scopus.com/inward/record.url?scp=55949087340&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2008.09.033
DO - 10.1016/j.msea.2008.09.033
M3 - Article
AN - SCOPUS:55949087340
VL - 499
SP - 518
EP - 524
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 1-2
ER -