Effect of microstructure on fatigue of superelastic NiTi wires

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00362707" target="_blank" >RIV/68407700:21340/21:00362707 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/21:00546006 RIV/61389005:_____/21:00545036
Result on the web
<a href="https://doi.org/10.1016/j.ijfatigue.2021.106400" target="_blank" >https://doi.org/10.1016/j.ijfatigue.2021.106400</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijfatigue.2021.106400" target="_blank" >10.1016/j.ijfatigue.2021.106400</a>

Result language
angličtina
Original language name
Effect of microstructure on fatigue of superelastic NiTi wires
Original language description
NiTi wires, having different nanocrystalline microstructures, were subjected to superelastic fatigue tests in a wide temperature range, and lattice defects accumulating during tensile cycling were analyzed. NiTi wires with the smallest grains displayed stable stress-strain response and the lowest fatigue life (N-f < 2500 cycles), while samples with the largest grains displayed unstable response and the highest fatigue life (similar to 12,000 cycles), though the N-f decreased rapidly with increasing test temperature. The dependence of N-f on microstructure and test temperature was rationalized by considering the shielding effect of the plastic deformation and deformation twinning ahead of advancing fatigue cracks.
Czech name
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Czech description
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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
20501 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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