Results 301 to 310 of about 5,157,794 (358)
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Magnetization and shape memory effect of ferromagnetic shape memory alloy wire
IEEE Transactions on Magnetics, 1999Magnetization and shape memory effect (SME) of Fe-Mn-Cr-Si, magnetic shape memory alloy(SMA) have been investigated. The specimen used is a commercial product wire of diameter 1.2 mm. The properties largely depend on heat treatment conditions, so it is treated thermally under three different conditions. As a result, pre-heating before heat treatment is
T. Kanada, M. Enokizono
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NiMnGa polycrystalline magnetically activated shape memory alloys
IEEE Transactions on Magnetics, 2000We report on the structural characteristics, magnetic properties and magnetically induced deformations obtained on as produced and annealed samples of bulk polycrystalline NiMnGa alloys. Extensive structural, magnetic and magnetomechanical characteristic are presented.
PASQUALE, MASSIMO +5 more
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Polymorphic MnAs nanowires of a magnetic shape memory alloy
Phys. Chem. Chem. Phys., 2014We describe a magnetic shape memory alloy, in which it is the nanostructural confinement that influences both the crystal geometry and the electronic and magnetic properties.
Echeverría-Arrondo, C. +2 more
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Journal of Alloys and Compounds, 2019
The conventional exchange bias and spontaneous exchange bias are two interesting but fundamentally different effects in Mn rich Ni-Mn-Z magnetic shape memory alloys. Previous investigations show that these two phenomena appear separately. Here, we report
Xiao-Qi Liao +7 more
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The conventional exchange bias and spontaneous exchange bias are two interesting but fundamentally different effects in Mn rich Ni-Mn-Z magnetic shape memory alloys. Previous investigations show that these two phenomena appear separately. Here, we report
Xiao-Qi Liao +7 more
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Magnetically driven shape memory alloys
Journal of Magnetism and Magnetic Materials, 2002Abstract Magnetically driven shape memory alloys experience the martensitic transformation while being in a ferromagnetic state. Two-way shape memory can be achieved through the shift of martensite–austenite transition, and a giant magnetostriction could be obtained through the redistribution of martensitic variants under magnetic field.
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A review of shape memory alloy research, applications and opportunities
, 2014 Full text article available at ScienceDirect. DOI: 10.1016/j.matdes.2013.11.084Shape memory alloys (SMAs) belong to a class of shape memory materials (SMMs), which have the ability to ‘memorise’ or retain their previous form when subjected to certain ...
J. Jani, M. Leary, A. Subic, M. Gibson
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A Mechanism for Magnetically Driven Shape Memory Alloys
MRS Proceedings, 1999AbstractA mechanism for shape memory alloys driven by a magnetic field is proposed. The mechanism involves the motion of twin dislocations in response to the application of a magnetic field. As a consequence, twin variants oriented favorably with respect to the magnetic field direction will grow.
P. J. Ferreira, J. B. Vander Sande
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Characterization of NiMnGa magnetic shape memory alloys
Journal of Materials Processing Technology, 2004Abstract Magnetic shape memory (MSM) effect is a new invention in actuator materials field, allowing even 50 times greater strains than in previous magnetically controlled materials (magnetostrictive). In MSM materials the magnetic field moves microscopic parts of the material (so-called twins) that leads to a net shape change of the material.
G. Pirge, C.V. Hyatt, S. Altıntaş
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Modeling and parametric studies of magnetic shape memory alloy–based energy harvester
, 2017This article presents a model to simulate the behavior of a magnetic shape memory alloy while harvesting vibratory energy. In this type of energy harvester, magnetic shape memory alloy element is placed in the air gap of a ferromagnetic core which ...
H. Sayyaadi +2 more
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Behavior of Magnetic Shape Memory Alloys
2017The main advantage of magnetic shape memory alloys (MSMAs) over conventional shape memory alloys (SMAs) lies in the possibility for their actuation not only by stress or temperature but also by a magnetic field. This chapter is mainly devoted to the modeling of the thermo-magneto-mechanical behavior of single crystals under compressive loading ...
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