Functional fatigue of superelasticity and elastocaloric effect for NiTi springs

Q Kan, Y Zhang, W Shi, Y Xu, C Yu, G Kang - International Journal of …, 2024‏ - Elsevier
In this work, the evolutions of superelasticity (SE) and elastocaloric effect (eCE) for NiTi
shape memory alloy (SMA) helical springs under cyclic deformation are investigated …

Superelasticity degradation of NiTi shape memory alloy in wide ranges of temperature and loading level: Experimental observation and micromechanical constitutive …

D Song, C Yu, C Zhang, G Kang - International Journal of Plasticity, 2023‏ - Elsevier
In this work, cyclic tension-unloading tests with different peak strains (10%-18%) in the
temperature range from 313 K to 393 K are performed to investigate the effects of …

Effects of grain size on the rate-dependent thermomechanical responses of nanostructured superelastic NiTi

A Ahadi, Q Sun - Acta materialia, 2014‏ - Elsevier
We investigated the effects of grain size on the rate-dependent thermomechanical
responses of polycrystalline superelastic NiTi (with an average grain size from 10 to 90 nm) …

[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 …

Experimental study on rate dependence of macroscopic domain and stress hysteresis in NiTi shape memory alloy strips

X Zhang, P Feng, Y He, T Yu, Q Sun - International Journal of Mechanical …, 2010‏ - Elsevier
NiTi polycrystalline shape memory alloys, when stretched, can deform through the formation
and growth of localized macroscopic martensite domains. In this paper, we study the effects …

Shape memory alloys as an effective tool to damp oscillations: study of the fundamental parameters required to guarantee technological applications

V Torra, A Isalgue, FC Lovey, M Sade - Journal of Thermal Analysis and …, 2015‏ - Springer
The SMA was studied for their macroscopic application in dam** for civil engineering. The
study is a synthesis and includes an outline of the models required for the SMA simulation …

Effect of deformation frequency on temperature and stress oscillations in cyclic phase transition of NiTi shape memory alloy

H Yin, Y He, Q Sun - Journal of the Mechanics and Physics of Solids, 2014‏ - Elsevier
Distinctive temperature and stress oscillations can be observed in superelastic shape
memory alloys (SMAs) when they subject to displacement-controlled cyclic phase transition …

Experimental observations on rate-dependent cyclic deformation of super-elastic NiTi shape memory alloy

Q Kan, C Yu, G Kang, J Li, W Yan - Mechanics of Materials, 2016‏ - Elsevier
Based on the strain-controlled cyclic tension-unloading tests at various strain rates (3.3× 10−
4–3.3× 10− 2/s), the effect of strain rate on the uniaxial cyclic deformation of a super-elastic …

Concentration of transformation-induced plasticity in pseudoelastic NiTi shape memory alloys: Insight from austenite–martensite interface instability

Y Zhang, X Chai, X Ju, Y You, S Zhang, L Zheng… - International Journal of …, 2023‏ - Elsevier
Transformation-induced plasticity (TRIP) in pseudoelastic polycrystalline NiTi shape memory
alloys (SMAs) is investigated through tensile tests combined with in-situ infrared and digital …

Rate-dependent cyclic deformation of super-elastic NiTi shape memory alloy: thermo-mechanical coupled and physical mechanism-based constitutive model

C Yu, G Kang, Q Kan, Y Zhu - International Journal of Plasticity, 2015‏ - Elsevier
Abstract A three-dimensional (3D) thermo-mechanical coupled and physical mechanism-
based constitutive model is phenomenologically constructed to describe the rate-dependent …