Stress-strain-temperature behavior due to B2-R-B19 ' transformation in NiTi polycrystals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F06%3A00076209" target="_blank" >RIV/61389005:_____/06:00076209 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Stress-strain-temperature behavior due to B2-R-B19 ' transformation in NiTi polycrystals
Original language description
Thermomechanical behavior of superelastic NiTi wires undergoing sequential B2-R -B19' martensitic transformation was investigated by two recently developed in-situ experimental methods capable of detecting and recognizing the activity of various deformation/transformation processes in NiTi and theoretically by micromechanical modeling. An earlier model of SMA polycrystal transformation is further developed, so it accounts for the strains due to the R-phase related deformation processes in activated NiTi. A continuous variation of the rhombohedral distortion angle a of the R-phase structure with temperature and stress is newly introduced as a legitimate deformation mechanism. Simulation results for NiTi bars and wires exposed to three types of thermomechanical tests-mechanical loading at constant temperature, cooling under constant stress, and recovery stress tests are presented and confronted with results.
Czech name
Napěťové, deformační a teplotní chování NiTi polykrystalů řízené B2-R-B19' transformací
Czech description
Mikromechanický model termomechanického chování slitiny NiTi ve které dochází k sekvenční martenzitické transformaci B2-R-B19' je představen a konfrontován s experimentaálními výsledky termomechanických zkoušek.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Engineering Materials and Technology-Transactions of the Asme
ISSN
0094-4289
e-ISSN
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Volume of the periodical
128
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
268-278
UT code for WoS article
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EID of the result in the Scopus database
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