On the coupling between martensitic transformation and plasticity in NiTi: experiments and continuum based modelling
Recent macroscopic experimental and theoretical evidence on the stress-strain-temperature
behavior of NiTi beyond the strain recoverability limits (large strain, high stress, high …
behavior of NiTi beyond the strain recoverability limits (large strain, high stress, high …
On the Lüders band formation and propagation in NiTi shape memory alloys
Near-equiatomic NiTi shape memory alloys are known to exhibit Lüders-type deformation
associated with a stress-induced transformation. Many studies have been conducted in the …
associated with a stress-induced transformation. Many studies have been conducted in the …
Understanding Micromechanical Material Behavior Using Synchrotron X-rays and In Situ Loading
With the flux of high-energy, deeply penetrating X-rays that a 3rd-generation synchrotron
source can provide and the current generation of large fast area detectors, the development …
source can provide and the current generation of large fast area detectors, the development …
Resolving intragranular stress fields in plastically deformed titanium using point-focused high-energy diffraction microscopy
The response of a polycrystalline material to a mechanical load depends not only on the
response of each individual grain, but also on the interaction with its neighbors. These …
response of each individual grain, but also on the interaction with its neighbors. These …
[HTML][HTML] Load path change on superelastic NiTi alloys: In situ synchrotron XRD and SEM DIC
The transformation behavior of commercial superelastic NiTi material was studied during
uniaxial tension and load path changes by employing a novel miniaturized biaxial stage and …
uniaxial tension and load path changes by employing a novel miniaturized biaxial stage and …
Effect of the amplitude of the training stress on the fatigue lifetime of NiTi shape memory alloys
This paper presents a mechanical training process that allows enhancing resistance to low
cycle fatigue of shape memory alloys. To this end, three training stresses were tested (0 …
cycle fatigue of shape memory alloys. To this end, three training stresses were tested (0 …
Shear strain evolution during tension-induced Lüders-type deformation of polycrystalline NiTi plates
This paper reports a new aspect of the Lüders-type deformation of NiTi. This is on the
occurrence of lateral shear strains in a tension-induced Lüders deformation process. The …
occurrence of lateral shear strains in a tension-induced Lüders deformation process. The …
Effect of prestrain on the fatigue life of superelastic nitinol
K Senthilnathan, A Shamimi, C Bonsignore… - Journal of Materials …, 2019 - Springer
Three types of fatigue testing are performed to elucidate the effects of prestraining
superelastic Nitinol on its subsequent fatigue lifetime: rotary bending and tension–tension …
superelastic Nitinol on its subsequent fatigue lifetime: rotary bending and tension–tension …
In situ, 3D characterization of the deformation mechanics of a superelastic NiTi shape memory alloy single crystal under multiscale constraint
Microstructural elements in NiTi shape memory alloys (SMAs)–precipitates, phase
boundaries, inclusions, grain boundaries–can be viewed as sources of multiscale constraint …
boundaries, inclusions, grain boundaries–can be viewed as sources of multiscale constraint …
[HTML][HTML] Influence of structural porosity and martensite evolution on mechanical characteristics of nitinol via in-silico finite element approach
Nitinol (NiTi) alloys are gaining extensive attention due to their excellent mechanical,
superelasticity, and biocompatibility properties. It is difficult to model the complex …
superelasticity, and biocompatibility properties. It is difficult to model the complex …