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 …

Ferromagnetic shape memory alloys—challenges, applications, and experimental characterization

E Faran, D Shilo - Experimental Techniques, 2015 - Wiley Online Library
Ferromagnetic shape memory alloys (FSMA) constitute a subgroup of shape memory alloys
(SMA) that also exhibit a ferromagnetic behavior. Due to the unique combination of large …

Evolution of martensitic microstructures in nanocrystalline NiTi wires deformed in tension

O Molnárová, O Tyc, L Heller, H Seiner, P Šittner - Acta Materialia, 2021 - Elsevier
An experimental method allowing for reconstruction of martensite variant microstructures
evolving during tensile thermomechanical loading test on nanocrystalline NiTi wire is …

Kwinking as the plastic forming mechanism of B19′ NiTi martensite

H Seiner, P Sedlák, M Frost, P Šittner - International Journal of Plasticity, 2023 - Elsevier
Irreversible plastic forming of B19′ martensite of the NiTi shape memory alloy is discussed
within the framework of continuum mechanics. It is suggested that the main mechanism …

[HTML][HTML] In-situ synchrotron X-ray diffraction texture analysis of tensile deformation of nanocrystalline NiTi wire in martensite state

X Bian, L Heller, L Kadeřávek, P Šittner - Applied Materials Today, 2022 - Elsevier
Tensile deformation of nanocrystalline superelastic NiTi wire in the martensite state at-90° C
until fracture was investigated by in-situ synchrotron X-ray diffraction texture analysis. The …

Thermally induced reorientation and plastic deformation of B19'monoclinic martensite in nanocrystalline NiTi wires

E Iaparova, L Heller, O Tyc, P Sittner - Acta Materialia, 2023 - Elsevier
Functional behavior of nanocrystalline NiTi shape memory wires having various austenitic
microstructures was investigated by thermomechanical testing and TEM analysis of …

Effect of crystal quality on twinning stress in Ni–Mn–Ga magnetic shape memory alloys

D Musiienko, F Nilsén, A Armstrong, M Rameš… - Journal of Materials …, 2021 - Elsevier
Low twinning stress (TS) is a prerequisite for magnetic shape memory functionality in
ferromagnetic martensites. We compare Ni 50 Mn 28 Ga 22 (nominal at.%) single crystals …

Tensile deformation of B19′ martensite in nanocrystalline NiTi wires

P Šittner, O Molnárová, X Bian, L Heller… - Shape Memory and …, 2023 - Springer
Deformation mechanisms activated during tensile deformation of nanocrystalline NiTi wire in
martensite state were investigated by combination of two experimental methods:(i) analysis …

Magnetic shape memory effect and highly mobile twin boundaries

O Heczko - Materials Science and Technology, 2014 - journals.sagepub.com
The magnetic shape memory effect can be classified as an example of the multiferroic effect
combining ferro-elasticity and (ferro) magnetism. After short overview of all known effects the …

Twin boundary structure and mobility

D Shilo, E Faran, B Karki, P Müllner - Acta Materialia, 2021 - Elsevier
Twinning is an important mechanism of deformation in various crystalline materials, and in
particular in shape memory alloys, where it is inherent to the shape memory and super …