On the coupling between martensitic transformation and plasticity in NiTi: Experiments and continuum based modelling

P Šittner, P Sedlák, H Seiner, P Sedmák, J Pilch… - Progress in Materials …, 2018 - Elsevier
Recent macroscopic experimental and theoretical evidence on the stress-strain-temperature
behavior of NiTi beyond the strain recoverability limits (large strain, high stress, high …

Localized plastic deformation of superelastic NiTi wires in tension

L Kadeřávek, P Šittner, O Molnárová, L Klimša… - Shape Memory and …, 2023 - Springer
Tensile deformation of superelastic NiTi shape memory alloy wires at temperatures above
austenite finish temperature proceeds via stress-induced martensitic transformation followed …

Cyclic phase transformation behavior of nanocrystalline NiTi at microscale

P Hua, K Chu, F Ren, Q Sun - Acta Materialia, 2020 - Elsevier
Cuboidal micropillars of nanocrystalline superelastic NiTi shape memory alloys with an
average grain size of 65 nm were fabricated by focused ion beam and then subjected to …

Recoverability of large strains and deformation twinning in martensite during tensile deformation of NiTi shape memory alloy polycrystals

Y Chen, O Molnárová, O Tyc, L Kadeřávek, L Heller… - Acta Materialia, 2019 - Elsevier
Superelastic NiTi wires were deformed in tension up to gradually increasing total strains at
various temperatures, recoverable strains were evaluated and lattice defects left in the …

Beyond the strain recoverability of martensitic transformation in NiTi

L Heller, P Šittner, P Sedlák, H Seiner, O Tyc… - International Journal of …, 2019 - Elsevier
Tensile deformation of a medical grade NiTi wire was investigated in a wide temperature
range from− 100° C to 450° C. Supplemental in-situ electrical resistance, synchrotron x-ray …

Orientation-dependent plastic deformation mechanisms and competition with stress-induced phase transformation in microscale NiTi

WS Choi, EL Pang, WS Ko, H Jun, HJ Bong… - Acta Materialia, 2021 - Elsevier
Understanding the orientation-dependent deformation behavior of NiTi shape-memory
alloys at small length scales is of importance for designing nano-and micro …

[HTML][HTML] Deformation mechanisms in a superelastic NiTi alloy: An in-situ high resolution digital image correlation study

E Polatidis, M Šmíd, I Kuběna, WN Hsu, G Laplanche… - Materials & Design, 2020 - Elsevier
An in-situ high resolution digital image correlation investigation during uniaxial tensile
deformation reveals the recoverable and the non-recoverable strain mechanisms in a Ni 51 …

Applying full-field measurement techniques for the thermomechanical characterization of shape memory alloys: a review and classification

D Delpueyo, A Jury, X Balandraud… - Shape Memory and …, 2021 - Springer
Full-field measurement techniques are now mature. As such, they have profoundly impacted
the experimental mechanics community in recent years. The way that shape memory alloys …

[HTML][HTML] Temperature and microstructure dependent tensile behavior of coarse grained superelastic NiTi

E Alarcon, L Heller, E de Prado, J Kopeček - Materials & Design, 2023 - Elsevier
In this work, effects of temperature and microstructure on tensile behavior of superelastic
NiTi wires were analyzed. We analyzed cold-drawn NiTi wires of 1.78 mm that received four …

Unraveling frequency effects in shape memory alloys: NiTi and FeMnAlNi

R Sidharth, ASK Mohammed, W Abuzaid… - Shape Memory and …, 2021 - Springer
With the presence of internal interfaces such as the austenite–martensite interface and the
internal twin boundaries in the martensite, shape memory alloys (SMAs) can be employed in …