Deformation physics of shape memory alloys–fundamentals at atomistic frontier

P Chowdhury, H Sehitoglu - Progress in Materials Science, 2017 - Elsevier
Application spectrum of shape memory alloys (SMA) is expanding rapidly and
proportionately so is the engineering demand for superior materials. An essential …

A revisit to atomistic rationale for slip in shape memory alloys

P Chowdhury, H Sehitoglu - Progress in Materials Science, 2017 - Elsevier
Performance degradation in shape memory alloys (SMA) arises due to a gradual loss of
strain recoverability attributable to slip mediated plasticity. The slip-induced changes in …

[HTML][HTML] Effect of temperature and texture on the reorientation of martensite variants in NiTi shape memory alloys

G Laplanche, T Birk, S Schneider, J Frenzel, G Eggeler - Acta Materialia, 2017 - Elsevier
Abstract Martensitic Ni 50 Ti 50 wires and sheets with different textures were tensile tested in
the temperature range between− 100° C and 60° C. The effect of texture and temperature on …

[HTML][HTML] Superelastic behavior and elastocaloric effect in a Ni51. 5Fe21. 5Ga27. 0 ferromagnetic shape memory single crystal under compression

F Masdeu, J Pons, J Torrens-Serra… - Materials Science and …, 2022 - Elsevier
Abstract Ni 51.5 Fe 21.5 Ga 27.0 single crystals have been subjected to different heat
treatments resulting in a different degree of L2 1 ordering. Superelastic response has been …

On the thermodynamic analysis of martensite stabilization treatments

DL Beke, L Daróczi, NM Samy, LZ Tóth, MK Bolgár - Acta Materialia, 2020 - Elsevier
It is shown that the broadenings of the forward and reverse martensitic transformations are
proportional to the second derivatives of the elastic energy by the transformed martensite …

Coherency of ordered γ′ precipitates and thermoelastic martensitic transformation in FeNiCoAlTaB alloys

Y Geng, D Lee, X Xu, M Nagasako, M Jin, X Jin… - Journal of Alloys and …, 2015 - Elsevier
The martensitic transformation characteristics and coherency of ordered γ′ precipitates are
investigated by electrical resistivity tests and HAADF-STEM observation in the aged …

Effect of grain size and ageing-induced microstructure on functional characteristics of a Ti-50.7 at.% Ni alloy

KA Polyakova, EP Ryklina, SD Prokoshkin - Shape Memory and …, 2020 - Springer
The effect of the microstructure formed as a result of ageing in a Ti-50.7 at.% Ni alloy with
different B 2 austenite grain sizes on its functional properties under bending is studied. The …

Ferromagnetic shape memory Ni-Fe-Ga alloy foams for elastocaloric cooling

M Imran, X Zhang - Journal of Physics D: Applied Physics, 2020 - iopscience.iop.org
An efficient and clean solid-state cooling technique based on elastocaloric effect (eCE) has
received great interests as a promising refrigeration technology for the last decade. The eCE …

FeNiCoAlTaB superelastic and shape-memory wires with oligocrystalline grain structure

WS Choi, EL Pang, PP Choi, CA Schuh - Scripta Materialia, 2020 - Elsevier
FeNiCoAlTaB shape-memory alloys are desirable alternatives to other smart metallic
materials owing to their low base metal and processing costs. These alloys, however …

Comparative study of shape memory effects in Ni-rich Ti–Ni alloy after training in various phase states

E Ryklina, K Polyakova, S Prokoshkin - Shape Memory and Superelasticity, 2020 - Springer
Six various training modes were used for a systematic study of the effect of the initial phase
state when training procedure on shape memory effect (SME) and two-way SME (TWSME) …