Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 15362-15372 |
| Seitenumfang | 11 |
| Fachzeitschrift | International Journal of Hydrogen Energy |
| Jahrgang | 41 |
| Ausgabenummer | 34 |
| Frühes Online-Datum | 16 Juli 2016 |
| Publikationsstatus | Veröffentlicht - 14 Sept. 2016 |
Abstract
The effects of tensile strain rate on the hydrogen-induced mechanical and microstructural features of a twinning-induced plasticity (TWIP) steel were investigated using a Fe-23Mn-0.5C steel with a saturated amount of hydrogen. To obtain a homogeneous hydrogen distribution, high-pressure hydrogen gas pre-charging was performed at 423 K. Similar to previous studies on hydrogen embrittlement, the deterioration in the tensile properties became distinct when the strain rate was decreased from 0.6 × 10−3to 0.6 × 10−4s−1. In terms of microstructural features, hydrogen-precharging decreased the thickness of deformation twin plates, and it localized dislocation slip. Moreover, facets of the hydrogen-induced quasi-cleavage feature on the fracture surface became smoother with decreasing strain rate. In this study, we proposed that a combined effect of hydrogen segregation, slip localization, and thinning of twin plates causes the hydrogen embrittlement of TWIP steels, particularly at a low strain rate.
ASJC Scopus Sachgebiete
- Energie (insg.)
- Erneuerbare Energien, Nachhaltigkeit und Umwelt
- Energie (insg.)
- Feuerungstechnik
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
Ziele für nachhaltige Entwicklung
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in: International Journal of Hydrogen Energy, Jahrgang 41, Nr. 34, 14.09.2016, S. 15362-15372.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Effect of strain rate on hydrogen embrittlement susceptibility of twinning-induced plasticity steel pre-charged with high-pressure hydrogen gas
AU - Bal, B.
AU - Koyama, M.
AU - Gerstein, G.
AU - Maier, H. J.
AU - Tsuzaki, K.
N1 - Funding information: This study was supported by the Grant-in-Aid for Young Scientists B (Grant Number 15K18235 ) and the Japan Science and Technology Agency (grant number: 20100113 ) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials”.
PY - 2016/9/14
Y1 - 2016/9/14
N2 - The effects of tensile strain rate on the hydrogen-induced mechanical and microstructural features of a twinning-induced plasticity (TWIP) steel were investigated using a Fe-23Mn-0.5C steel with a saturated amount of hydrogen. To obtain a homogeneous hydrogen distribution, high-pressure hydrogen gas pre-charging was performed at 423 K. Similar to previous studies on hydrogen embrittlement, the deterioration in the tensile properties became distinct when the strain rate was decreased from 0.6 × 10−3to 0.6 × 10−4s−1. In terms of microstructural features, hydrogen-precharging decreased the thickness of deformation twin plates, and it localized dislocation slip. Moreover, facets of the hydrogen-induced quasi-cleavage feature on the fracture surface became smoother with decreasing strain rate. In this study, we proposed that a combined effect of hydrogen segregation, slip localization, and thinning of twin plates causes the hydrogen embrittlement of TWIP steels, particularly at a low strain rate.
AB - The effects of tensile strain rate on the hydrogen-induced mechanical and microstructural features of a twinning-induced plasticity (TWIP) steel were investigated using a Fe-23Mn-0.5C steel with a saturated amount of hydrogen. To obtain a homogeneous hydrogen distribution, high-pressure hydrogen gas pre-charging was performed at 423 K. Similar to previous studies on hydrogen embrittlement, the deterioration in the tensile properties became distinct when the strain rate was decreased from 0.6 × 10−3to 0.6 × 10−4s−1. In terms of microstructural features, hydrogen-precharging decreased the thickness of deformation twin plates, and it localized dislocation slip. Moreover, facets of the hydrogen-induced quasi-cleavage feature on the fracture surface became smoother with decreasing strain rate. In this study, we proposed that a combined effect of hydrogen segregation, slip localization, and thinning of twin plates causes the hydrogen embrittlement of TWIP steels, particularly at a low strain rate.
KW - Hydrogen embrittlement
KW - Quasi-cleavage fracture
KW - Tension test
KW - Twinning-induced plasticity steels
UR - http://www.scopus.com/inward/record.url?scp=85027928898&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2016.06.259
DO - 10.1016/j.ijhydene.2016.06.259
M3 - Article
AN - SCOPUS:85027928898
VL - 41
SP - 15362
EP - 15372
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 34
ER -