NiTiCu thin walls were produced by twin-wire arc additive manufacturing (T-WAAM) using commercial NiTi and Cu wires as the feedstock materials. This approach aims to
The control of TT and shape memory behaviour in binary NiTi alloys can be effectively achieved by manipulating the Ni concentration. This is primarily attributed to the
Despite the superelastic deformation of NiTi has been documented and analyzed elaborately, its shape-memory behavior during stress-biased thermal cycling has not been
To further optimize the comprehensive performances of NiTi based shape memory alloys, various ternary or quaternary NiTi shape memory alloys have been developed.
Increasing the fatigue life of shape memory alloys often compromises other mechanical properties such as yield strength and plastic
A novel Shape Memory Alloy NiTi fiber-reinforced metal-intermetallic–laminate (SMAFR-MIL) composite with a volume fraction of ~ 3.5% NiTi was fabricated using vacuum
Shape memory alloys (SMAs) have been demonstrated as effective phase change materials (PCMs) for thermal energy storage (TES) applications. NiTi and NiTiHf SMAs
Atomistic calculations of free energy were performed for several symmetric tilt grain boundaries over a wide temperature range in the shape memory alloy NiTi. Contrary to expectation in a
Shape memory alloys are functional materials that present two very distinct properties: superelasticity and shape memory effect. Among these alloys, NiTi is the most
This study investigates the impact of AM processing on the shape memory properties of NiTi alloys using the Micro Wire and Arc Directed Energy Deposition (μ-WA-DED)
It is rare but essential to have materials with high strength, superelasticity and shape memory capacity, due to the constant need to manage safety-critical operations in both
Near-equiatomic NiTi alloys have great potential for application in aerospace and biomedical fields due to their exceptional shape memory performance and superelasticity.
The shape memory response and associated damping quality are discussed for three popular families of SMAs; Fe-based, Cu-based, and NiTi-based alloys including their
Abstract This study provides a comprehensive review of the observation of NiTi Shape Memory Alloys (SMAs) in engineering applications and beyond.
In this article, two different systems of NiTiCu shape memory alloys are explored, and the phase transition behavior and thermal storage properties of the alloys are investigated.
As the fabrication process of NiTi shape-memory alloy holds a dominate criteria in the application, various steps of the fabrication technique needs to be explored in detail. There
Cite this article: CHEN Fei, QIU Pengcheng, LIU Yang, SUN Bingbing, ZHAO Haisheng, SHEN Qiang. Microstructure and Mechanical Properties of NiTi Shape Memory Alloys by In Situ Laser
NiTi shape memory alloy with near equal atomic ratio exhibits excellent shape memory effect and superelasticity [1], good biocompatibility [2, 3], corrosion resistance [4] and
高达9%返现· Abstract The largest amount of latent heat of the martensitic transformation in nickel titanium shape memory alloy was explored. The measured amounts of
Shape memory alloys have become a remarkable material class after the discovery of the shape memory effect in NiTi alloy in 1963. Today, nitinol (NiTi) is the most
The emerging ferroic glassy state in shape memory alloys (SMAs), termed strain glass, undergoes a freezing process characterized by frustrated short-range strain order with
As a sort of intelligent material, NiTi shape memory alloys (SMAs) are widely used in the fields of aerospace, medical devices and construction due to their functional properties such as
This study investigates the impact of AM processing on the shape memory properties of NiTi alloys using the Micro Wire and Arc Directed
The emerging ferroic glassy state in shape memory alloys (SMAs), termed strain glass, undergoes a freezing process characterized by
Abstract We interrogate the extent to which grain size plays a role in augmenting the thermal conductivity and thermal energy storage capacity of a NiTi shape memory alloy (SMA) using
In recent years, the detrimental impact of traditional gas–liquid refrigerants on the environment has prompted a shift towards sustainable solid
In this study, five layers of NiTi alloy were deposited by the cold metal transfer welding (CMT) based WAAM process using Ni 50.8Ti wires as the feedstock material.
The more complete the martensitic phase transformation that occurs in NiTi alloys, the more desirable is the shape memory, however it results in a shorter fatigue life.
are Thermalconductivity Thermoreflectance Shape memory alloy Latent heat Thermal storage contrary to the performancemetricsachievedusingconventional mechanismsthatimprove PCM
Motivated by the recent advancements demonstrating the effectiveness of NiTi shape memory alloys (SMAs) as high figure of merit (FOM) phase change materials (PCMs) for thermal management and storage, NiTiHf SMAs were explored as candidate solid-solid PCMs with high temperature capability.
NiTi shape memory alloys, promising materials in orthopedic applications. In Shape Memory Alloys—Processing, Characterization and Applications, InTech: New York, NY, USA, pp. 261–278. Eichler, A. S. (2020).
Many established, but also potential future applications of NiTi-based shape memory alloys (SMA) in biomedical devices and solid-state refrigeration require long fatigue life with 10 7 –10 9 duty cycles 1, 2. However, improving the fatigue resistance of NiTi often compromises other mechanical and functional properties 3, 4.
Provided by the Springer Nature SharedIt content-sharing initiative Many established, but also potential future applications of NiTi-based shape memory alloys (SMA) in biomedical devices and solid-state refrigeration require long fatigue life with 107–109 duty cycles1,2.
Through a comparative analysis of NiTi, the Shape Memory Effect (SME) was examined considering its unique properties and composition within various engineering contexts. The investigation further delves into the influences of microstructure, composition, formation, and cyclic application on the behaviour of NiTi.
Using laser powder bed fusion and a tailored heat treatment, the authors produce NiTi shape memory alloys with improved strength, ductility, and superelasticity enabled by high-density of Ni-rich local chemical inhomogeneity entities.
