dc.identifier.uri |
http://dx.doi.org/10.15488/12250 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/12348 |
|
dc.contributor.author |
Fricke, Lara Vivian
|
|
dc.contributor.author |
Gerstein, Gregory
|
|
dc.contributor.author |
Kotzbauer, Andreas
|
|
dc.contributor.author |
Breidenstein, Bernd
|
|
dc.contributor.author |
Barton, Sebastian
|
|
dc.contributor.author |
Maier, Hans Jürgen
|
|
dc.date.accessioned |
2022-06-15T10:10:26Z |
|
dc.date.available |
2022-06-15T10:10:26Z |
|
dc.date.issued |
2022 |
|
dc.identifier.citation |
Fricke, L.V.; Gerstein, G.; Kotzbauer, A.; Breidenstein, B.; Barton, S. et al.: High Strain Rate and Stress-State-Dependent Martensite Transformation in AISI 304 at Low Temperatures. In: Metals : open access journal 12 (2022), Nr. 5, 747. DOI: https://doi.org/10.3390/met12050747 |
|
dc.description.abstract |
Deformation-induced martensitic transformation as the basis of a hardening process is dependent, among others, on the stress state. In applications such as cryogenic cutting, where a hardened martensitic subsurface can be produced in metastable austenitic steels, different stress states exist. Furthermore, cutting typically occurs at high strain rates greater than 103s−1. In order to gain a deeper insight into the behavior of a metastable austenitic steel (AISI 304) upon cryogenic cutting, the influence of high strain rates under different loading conditions was analyzed. It was observed that higher strain rates lead to a decrease in the α′-martensite content if exposed to tensile loads due to generated adiabatic heat. Furthermore, a lath-like α′-martensite was induced. Under shear stress, no suppression of α′-martensite formation by higher strain rates was found. A lath α′-martensite was formed, too. In the specimens that were subjected exclusively to compressive loading, almost no α′-martensite was present. The martensitic surface generated by cutting experiments showed deformation lines in which α′-martensite was formed in a wave-like shape. As for the shear specimens, more α′-martensite was formed with increasing strain rate, i.e., force. Additionally, magnetic etching proved to be an effective method to verify the transformation of ferromagnetic α′-martensite. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Basel : MDPI |
|
dc.relation.ispartofseries |
Metals : open access journal 12 (2022), Nr. 5 |
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dc.rights |
CC BY 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
high strain rates |
eng |
dc.subject |
deformation-induced martensitic transformation |
eng |
dc.subject |
cryogenic temperature |
eng |
dc.subject |
magnetic etching |
eng |
dc.subject |
subsurface hardening |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
High Strain Rate and Stress-State-Dependent Martensite Transformation in AISI 304 at Low Temperatures |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
2075-4701 |
|
dc.relation.doi |
https://doi.org/10.3390/met12050747 |
|
dc.bibliographicCitation.issue |
5 |
|
dc.bibliographicCitation.volume |
12 |
|
dc.bibliographicCitation.firstPage |
747 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|