Temperature and microstructure dependence of localized tensile deformation of superelastic NiTi wires

Authors

Y. Chen, O. Tyc, L. Kadeřávek, O. Molnárová, L. Heller, P. Šittner

Laboratory / Department
Functional Materials and Composites "FMC"
Citation
Temperature and microstructure dependence of localized tensile deformation of s…
DOI
https://doi.org/10.1016/j.matdes.2019.107797
Year
2019

The work presents result of systematic study of deformation mechanisms acting in NiTi shape memory alloy thermomechanically loaded in wide temperature range. An earlier mechanics model of the autors is updated to account for TRIP like deformation of NiTi at elevated temperatures and stresses.

Recoverable and permanent strain evaluated in tensile test on NiTi wire at various temperatures and lattice defects observed in the microstructure of deformed wires.
Recoverable and permanent strain evaluated in tensile test on NiTi wire at various temperatures and lattice defects observed in the microstructure of deformed wires.

Contact person: Petr Šittner, +420 266 052 657, sittner [at] fzu [dot] cz (sittner[at]fzu[dot]cz)

Cooperating institutions:

  • State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 210016, Nanjing, China