Number of the records: 1  

Evolution of internal stresses during cyclic superelastic deformation of NiTi investigated by X-ray synchrotron diffraction

  1. 1.
    SYSNO ASEP0456634
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleEvolution of internal stresses during cyclic superelastic deformation of NiTi investigated by X-ray synchrotron diffraction
    Author(s) Sedmák, P. (CZ)
    Šittner, Petr (FZU-D) RID, ORCID
    Pilch, Jan (FZU-D) RID
    Curfs, C. (FR)
    Source TitleMaterials Today: Proceedings ICOMAT 2014. - Amsterdam : Elsevier Ltd, 2015 / San Juan J. ; López-Echarri A. ; Nó M.L. ; López G.A. - ISSN 2214-7853
    Pagess. 731-734
    Number of pages4 s.
    Publication formOnline - E
    ActionInternational Conference on Martensitic Transformations ICOMAT 2014
    Event date06.07.2014-11.07.2014
    VEvent locationBilbao
    CountryES - Spain
    Event typeWRD
    Languageeng - English
    CountryNL - Netherlands
    Keywordsshape memory alloy ; NiTi ; martensitic transformation ; cyclic deformation ; x-ray diffraction
    Subject RIVJG - Metallurgy
    R&D ProjectsGPP108/12/P111 GA ČR - Czech Science Foundation (CSF)
    GA14-15264S GA ČR - Czech Science Foundation (CSF)
    GAP107/12/0800 GA ČR - Czech Science Foundation (CSF)
    Institutional supportFZU-D - RVO:68378271
    EID SCOPUS84955072720
    DOI https://doi.org/10.1016/j.matpr.2015.07.386
    AnnotationCyclic tensile superelastic deformation of NiTi was investigated using high resolution in-situ synchrotron x-ray diffraction method. Diffraction patterns were recorded under applied stress prior and after the stress induced martensitic transformation, analyzed and interpreted in view of the evolution of microstructure in the transforming polycrystal. A simple bicrystal scheme of the polycrystal transformation is used to rationalize the experimental evidence on microstructure evolution during cycling. It is claimed that the instability of cyclic superelastic response of NiTi is due to the gradual rise of internal stresses originating from the accumulation of plastic deformation accompanying the martensitic transformation in constrained polycrystalline environment.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2016
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.