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http://dx.doi.org/10.18419/opus-11348
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DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Ko, Won-Seok | - |
dc.contributor.author | Grabowski, Blazej | - |
dc.contributor.author | Neugebauer, Jörg | - |
dc.date.accessioned | 2021-03-18T10:34:22Z | - |
dc.date.available | 2021-03-18T10:34:22Z | - |
dc.date.issued | 2015 | de |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.issn | 2469-9969 | - |
dc.identifier.other | 1817198599 | - |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-113653 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/11365 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-11348 | - |
dc.description.abstract | Phase transitions in nickel-titanium shape-memory alloys are investigated by means of atomistic simulations. A second nearest-neighbor modified embedded-atom method interatomic potential for the binary nickel-titanium system is determined by improving the unary descriptions of pure nickel and pure titanium, especially regarding the physical properties at finite temperatures. The resulting potential reproduces accurately the hexagonal-close-packed to body-centered-cubic phase transition in Ti and the martensitic B2−B19′ transformation in equiatomic NiTi. Subsequent large-scale molecular-dynamics simulations validate that the developed potential can be successfully applied for studies on temperature- and stress-induced martensitic phase transitions related to core applications of shape-memory alloys. A simulation of the temperature-induced phase transition provides insights into the effect of sizes and constraints on the formation of nanotwinned martensite structures with multiple domains. A simulation of the stress-induced phase transition of a nanosized pillar indicates a full recovery of the initial structure after the loading and unloading processes, illustrating a superelastic behavior of the target system. | en |
dc.language.iso | en | de |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/639211 | de |
dc.relation.uri | doi:10.1103/PhysRevB.92.134107 | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.ddc | 530 | de |
dc.title | Development and application of a Ni-Ti interatomic potential with high predictive accuracy of the martensitic phase transition | en |
dc.type | article | de |
ubs.fakultaet | Chemie | de |
ubs.fakultaet | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.institut | Institut für Materialwissenschaft | de |
ubs.institut | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.publikation.seiten | 22 | de |
ubs.publikation.source | Physical Review, B 92 (2015), 134107 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 03 Fakultät Chemie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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PhysRevB.92.134107.pdf | 4,53 MB | Adobe PDF | Öffnen/Anzeigen |
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