dc.identifier.uri |
http://dx.doi.org/10.15488/16769 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/16896 |
|
dc.contributor.author |
Mohammadi, Abbas
|
|
dc.contributor.author |
Koyama, Motomichi
|
|
dc.contributor.author |
Gerstein, Gregory
|
|
dc.contributor.author |
Maier, Hans Jürgen
|
|
dc.contributor.author |
Noguchi, Hiroshi
|
|
dc.date.accessioned |
2024-03-25T08:03:51Z |
|
dc.date.available |
2024-03-25T08:03:51Z |
|
dc.date.issued |
2021 |
|
dc.identifier.citation |
Mohammadi, A.; Koyama, M.; Gerstein, G.; Maier, H.J.; Noguchi, H.: Hydrogen-assisted crack propagation in pre-strained twinning-induced plasticity steel: From initiation at a small defect to failure. In: ISIJ International 61 (2021), Nr. 4, S. 1278-1286. DOI: https://doi.org/10.2355/isijinternational.isijint-2019-510 |
|
dc.description.abstract |
Hydrogen-assisted crack growth of pre-strained twinning-induced plasticity (TWIP) steel was investigated using artificial defects (micro-drilled holes), which acted as artificial crack initiation sites. Hydrogen was introduced into the specimens by electrochemical hydrogen charging during slow strain rate tensile test. The quasi-cleavage crack propagation observed was due to repeated crack initiation near the crack tip and subsequent coalescence. Crack initiation near the crack tip occurred after plastic deformation of the crack tip, and pre-straining facilitated plasticity-driven crack initiation. The early stage of plasticity-driven crack growth was sensitive to the crack length and remote stress level. Accordingly, the crack growth rate in the early stage increased with the increase in the initial defect size. In the following stage of the crack growth, the crack growth rate exhibited a complicated trend with respect to the crack length, which is possibly due to the plastic-wake-altered stress field around the crack tip, which depends on the initial defect size. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Tōkyō : ISIJ |
|
dc.relation.ispartofseries |
ISIJ International 61 (2021), Nr. 4 |
|
dc.rights |
CC BY-NC-ND 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
Crack propagation |
eng |
dc.subject |
Hydrogen embrittlement |
eng |
dc.subject |
Pre-strain |
eng |
dc.subject |
Quasi-cleavage |
eng |
dc.subject |
Twinning-induced plasticity steel |
eng |
dc.subject.ddc |
620 | Ingenieurwissenschaften und Maschinenbau
|
|
dc.subject.ddc |
660 | Technische Chemie
|
|
dc.subject.ddc |
670 | Industrielle und handwerkliche Fertigung
|
|
dc.title |
Hydrogen-assisted crack propagation in pre-strained twinning-induced plasticity steel: From initiation at a small defect to failure |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1347-5460 |
|
dc.relation.issn |
0915-1559 |
|
dc.relation.doi |
https://doi.org/10.2355/isijinternational.isijint-2019-510 |
|
dc.bibliographicCitation.issue |
4 |
|
dc.bibliographicCitation.volume |
61 |
|
dc.bibliographicCitation.firstPage |
1278 |
|
dc.bibliographicCitation.lastPage |
1286 |
|
dc.description.version |
publishedVersion |
eng |
tib.accessRights |
frei zug�nglich |
|