Deformation mechanisms in a superelastic NiTi alloy: An in-situ high resolution digital image correlation study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F20%3A00536175" target="_blank" >RIV/68081723:_____/20:00536175 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0264127520301568?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0264127520301568?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2020.108622" target="_blank" >10.1016/j.matdes.2020.108622</a>
Alternative languages
Result language
angličtina
Original language name
Deformation mechanisms in a superelastic NiTi alloy: An in-situ high resolution digital image correlation study
Original language description
An in-situ high resolution digital image correlation investigation during uniaxial tensile deformation reveals the recoverable and the non-recoverable strain mechanisms in a Ni51Ti49 alloy with a mean grain size of 35 mu m. Recoverable strain is due to the martensitic transformation, for which more than one variant per grain can be activated. The majority of the activated variants exhibit high Schmid factor. The variant selection can be influenced by shear transmission across grain boundaries, when the geometrical compatibility between the neighboring habit plane variants is favourable, in these cases variants that do not have the highest Schmid factor, with respect to the macroscopically applied load, are activated. The experimentally determined transformation strains agree well with theoretical calculations for single crystals. The non-recoverable strain is due to deformation slip in austenite, twinning in martensite and residual martensite. The results are discussed in view of possible twinning modes that can occur in austenite resulting in significant non-recoverable strain.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10101 - Pure mathematics
Result continuities
Project
<a href="/en/project/EF16_013%2F0001823" target="_blank" >EF16_013/0001823: Modernization of Infrastructure for the Study and Application of Advanced Materials (m-IPMinfra)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials and Design
ISSN
0264-1275
e-ISSN
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Volume of the periodical
191
Issue of the periodical within the volume
JUN
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
108622
UT code for WoS article
000536937200038
EID of the result in the Scopus database
2-s2.0-85081660995