Normally closed plunger-membrane microvalve self-actuated electrically using a shape memory alloy wire
Sign Up to like & getrecommendations! Published in 2018 at "Microfluidics and Nanofluidics"
DOI: 10.1007/s10404-018-2049-1
Abstract: Various microfluidic architectures designed for in vivo and point-of-care diagnostic applications require larger channels, autonomous actuation, and portability. In this paper, we present a normally closed microvalve design capable of fully autonomous actuation for wide… read more here.
Keywords: plunger membrane; normally closed; shape memory; alloy wire ... See more keywords
Synergistic Effects among the Structure, Martensite Transformation and Shear Band in a Shape Memory Alloy-Metallic Glass Composite
Sign Up to like & getrecommendations! Published in 2018 at "Applied Composite Materials"
DOI: 10.1007/s10443-018-9701-5
Abstract: In this work, we use the finite element method to investigate the free volume evolution, as well as the martensite transformation effect and its connection with the pretreatment strain, in a shape memory alloy-metallic glass… read more here.
Keywords: shape memory; alloy metallic; transformation; effect ... See more keywords
Seismic behavior of self-centering reinforced concrete wall enabled by superelastic shape memory alloy bars
Sign Up to like & getrecommendations! Published in 2017 at "Bulletin of Earthquake Engineering"
DOI: 10.1007/s10518-017-0213-8
Abstract: Reinforced concrete (RC) wall is a common type of structural component used in high-rise buildings to resist lateral loads induced by earthquakes. RC walls are typically designed and detailed to dissipate energy through significant inelastic… read more here.
Keywords: superelastic shape; shape memory; wall; concrete wall ... See more keywords
Thermomechanical, calorimetric and magnetic properties of a Ni–Ti shape-memory alloy wire
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-019-08869-3
Abstract: In this work, some physical properties of a commercial Ni–Ti (nitinol) shape-memory alloy with cylindrical geometry (wire) were investigated; the focus was on the thermomechanical, calorimetric and magnetic characterization. By dynamical mechanical analysis, the range… read more here.
Keywords: shape memory; wire; thermomechanical calorimetric; geometry ... See more keywords
Electromechanical analytical model of shape memory alloy based tunable cantilevered piezoelectric energy harvester
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Mechanics and Materials in Design"
DOI: 10.1007/s10999-018-9413-x
Abstract: The resonant frequency of electromechanical energy harvester should be tuned to ambient frequency so as to maximize the harvester power. In this paper, it is proposed to tune the natural frequency of the energy harvester… read more here.
Keywords: shape memory; memory alloy; energy harvester; energy ... See more keywords
Structural-Morphological Fluctuations Induced by Thermomechanical Treatment in a Fe – Mn – Si Shape Memory Alloy
Sign Up to like & getrecommendations! Published in 2018 at "Metal Science and Heat Treatment"
DOI: 10.1007/s11041-018-0303-5
Abstract: Variation of the sizes and chemical compositions of martensite plates in the structure of powder-metallurgy shape memory alloy Fe – 14 wt.% Mn – 6 wt.% Si – 9 wt.% Cr – 5 wt.% Ni… read more here.
Keywords: treatment; shape memory; structural morphological; memory alloy ... See more keywords
Influence of Temperature on the Oxidation Behaviour of an Austenitic Stainless FeMnSiCrNi Shape Memory Alloy
Sign Up to like & getrecommendations! Published in 2019 at "Oxidation of Metals"
DOI: 10.1007/s11085-019-09916-y
Abstract: The oxidation behaviour of an austenitic stainless Fe–14.29Mn–5.57Si–8.23Cr–4.96Ni (wt%) shape memory alloy was investigated in air at 600 °C and 700 °C. The results showed that the oxidation process obeyed the parabolic rate law at both temperatures. At 700 °C,… read more here.
Keywords: oxidation; oxidation behaviour; shape memory; austenitic stainless ... See more keywords
Estimating Lyapunov spectrum on shape-memory alloy oscillators considering cloned dynamics and tangent map methods
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-02553-6
Abstract: Mechanical devices built with shape-memory alloys become popular due to thermomechanical coupling associated with solid-state phase transformations. The main characteristics stemming from these transformations are the intrinsic dissipation and the change of thermomechanical properties as… read more here.
Keywords: cloned dynamics; shape memory; alloy oscillators; memory alloy ... See more keywords
Fatigue Crack Initiation in the Iron-Based Shape Memory Alloy FeMnAlNiTi
Sign Up to like & getrecommendations! Published in 2020 at "Shape Memory and Superelasticity"
DOI: 10.1007/s40830-020-00293-z
Abstract: The newly developed FeMnAlNiTi shape memory alloy (SMA) holds significant promise due to its desirable properties including ease of processing, room temperature superelasticity, a wide superelastic window of operation, and high transformation stress levels. In… read more here.
Keywords: shape memory; transformation; shape; memory alloy ... See more keywords
Microstructural evolution of martensite during deformation in Zr50Cu50 shape memory alloy
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2017.04.045
Abstract: Abstract The microstructural evolution of deformed martensite in the Zr50Cu50 shape memory alloy was studied by transmission electron microscopy (TEM) and the deformation mechanism was finally clarified. Before deformation, the intervariants in the Zr50Cu50 alloy… read more here.
Keywords: zr50cu50 shape; alloy; microstructural evolution; shape memory ... See more keywords
Prediction of transformation stresses in NiTi shape memory alloy
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.06.009
Abstract: Abstract It is well known that interfaces play an important role in determining the mechanical response of materials. This paper focuses on the transforming shape memory alloy NiTi and is aimed towards a better understanding… read more here.
Keywords: transformation; shape memory; memory alloy;