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B2 -> B19' ->B2(T) Martensitic Transformation as a Mechanism of Plastic Deformation of NiTi.
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SYSNO ASEP 0522366 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title B2 -> B19' ->B2(T) Martensitic Transformation as a Mechanism of Plastic Deformation of NiTi. Author(s) Šittner, Petr (UJF-V) ORCID, RID, SAI
Heller, Luděk (UJF-V) ORCID
Sedlák, Petr (UJF-V) ORCID
Kadeřávek, Lukáš (UJF-V) ORCID
Chen, Y. (CN)
Tyc, Ondřej (FZU-D) ORCID
Molnárová, Orsolya (FZU-D) ORCID
Seiner, Hanuš (UT-L) RID, ORCIDNumber of authors 8 Source Title Conference Proceedings from International Conference on Shape Memory and Superelastic Technologies, SMST 2019. - : ASM International Ohio : ASM International, 2019 - ISBN 978-151089272-9 Pages s. 167-168 Number of pages 1 s. Publication form Print - P Action International Conference on Shape Memory and Superelastic Technologies 2019, SMST 2019 Event date 13.05.2019 - 17.05.2019 VEvent location Konstanz Country DE - Germany Event type WRD Language eng - English Country US - United States Keywords materials ; stress-induced martensitic transformation ; twinning Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EF16_013/0001794 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 ; UJF-V - RVO:61389005 ; UT-L - RVO:61388998 EID SCOPUS 85077291101 Annotation Deformation of superelastic NiTi wire with tailored microstructure was investigated in tensile loading-unloading tests up to the end of the stress plateau in wide temperature range from room temperature up to 200 degrees C. Lattice defects left in the microstructure of deformed wires were investigated by transmission electron microscopy. Tensile deformation is localized up to the highest test temperatures, even if practically no martensite phase exists in the wire at the end of the stress plateau. In tensile tests at elevated temperatures around 100 degrees C, at which the upper plateau stress approaches the yield stress for plastic deformation of martensite, upper plateau strains become unusually long, transformation strains become unrecoverable and deformation bands containing {114} austenite twins appear in the microstructure of deformed wires. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2020
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