Comparison of Highly Mobile Twin Boundaries in Cu–Ni–Al and Ni–Mn–Ga Shape Memory Single Crystals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00325110" target="_blank" >RIV/68407700:21340/18:00325110 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-319-76968-4_40" target="_blank" >http://dx.doi.org/10.1007/978-3-319-76968-4_40</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-76968-4_40" target="_blank" >10.1007/978-3-319-76968-4_40</a>
Alternative languages
Result language
angličtina
Original language name
Comparison of Highly Mobile Twin Boundaries in Cu–Ni–Al and Ni–Mn–Ga Shape Memory Single Crystals
Original language description
We compared twinning systems in Cu–Ni–Al and Ni–Mn–Ga single crystals from macroscale down to atomic scale. Using a newly developed formalism, we studied the twinning stress or mobility and microstructure of the equivalent twin boundaries. In Cu–Ni–Al, compound twinning exhibits the twinning stress of 1–2 MPa, and Type II twinning stress is approximately 20 MPa, which is much higher than the twinning stress for Type II in Ni–Mn–Ga (0.1–0.3 MPa). No temperature dependence was found for twinning stress of Type II in either alloy. Transmission electron microscopy revealed that in contrast to Ni–Mn–Ga, there was no internal twinning in Cu–Ni–Al, only stacking faults. The highest density of stacking faults was observed in the presence of Type I twin boundaries. The extremely low twinning stress may be associated with the deep hierarchy of twinning in Ni–Mn–Ga.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinary research centre for advanced materials</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the International Conference on Martensitic Transformations: Chicago
ISBN
978-3-319-76967-7
ISSN
2367-1181
e-ISSN
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Number of pages
5
Pages from-to
257-261
Publisher name
Springer
Place of publication
Basel
Event location
Hyatt Regency, Chicago, Illinois
Event date
Jul 9, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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