ferromagnetic shape memory
Ferromagnetic Shape Memory Microactuators
... driving frequency above the critical frequency, the scanning angle sharply decreases independent of the heating power. This low-pass behavior can be attributed to the dynamics of heat transfer between the double-beam and ...
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Magnetomechanical performance and mechanical properties of Ni-Mn-Ga ferromagnetic shape memory alloys
... A Ni-Mn-Ga ferromagnetic shape memory alloy was tested for strain versus applied field and strain versus stress. Field- induced strains up to 6 percent were measured with a hysteresis of about 160 ...
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Dynamic Response in the Low-kHz Range and Delta-E Effect in Ferromagnetic Shape Memory Ni-Mn-Ga
... on ferromagnetic shape memory nickel-manganese-gallium (Ni-Mn-Ga) has demonstrated several characteristics which make this material attractive as an active element for the next generation of ...
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Effect of Hydrostatic Pressure on P 14M 2M and P 2M Martensitic Transformations in Single Crystalline Ni Mn Ga Ferromagnetic Shape Memory Alloys
... based ferromagnetic shape memory alloys have attracted considerable attention partly because they are typical example to investigate the relationship be- tween the magnetism and martensitic ...
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Transmission Electron Microscopy of Twins in 10M Martensite in Ni Mn Ga Ferromagnetic Shape Memory Alloy
... the 14M martensites can be characterized by a five (ten) layered modulated structure and a seven (fourteen) layered modulated structure, respectively. The 2M martensite is a non-modulated structure. The deformation of ...
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Rearrangement of Martensite Variants in Iron Based Ferromagnetic Shape Memory Alloys under Magnetic Field
... Recently, ferromagnetic shape memory alloys have at- tracted considerable attention because they exhibit a giant magnetic field-induced strain (MFIS) of several percent, which arises in association ...
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Mechanical and Magnetic Properties of Ni Mn Ga Gd Ferromagnetic Shape Memory Alloys
... (0 ¯ x ¯ 5) ferromagnetic shape memory alloy were inves- tigated. The results of mechanical properties show that an appropriate amount of Gd addition significantly improves the mechanical properties ...
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Cobalt-base ferromagnetic shape memory alloys
... Ferromagnetic Shape Memory Alloys (FMSMAs) are an important member of the so-called Smart Materials group because they combine the functional properties of shape memory and ...
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Unoccupied electronic structure of Ni2MnGa ferromagnetic shape memory alloy
... electronic structure calculations in Fig. 3(b) and (c). It may be noted that the calculated spectra is based on the total DOS, which is an integration of the dispersion curves over the whole Brillouin zone. On the other ...
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Combinatorial Investigation of Ferromagnetic Shape Memory Alloys in the Ni Mn Al Ternary System Using a Composition Spread Technique
... Using composition spreads, we have found that there are regions where both ferromagnetic and shape-memory prop- erties coexist in the ternary Ni-Mn-Al alloy system. In addition, we observed a large ...
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Fe Pd Ferromagnetic Shape Memory Alloy Thin Films Made By Dual Source DC Magnetron Sputtering*
... Fe–Pt, 6) Fe–Ni–Co–Ti, 7) Fe–Pd–Pt 8) and so on. In the present study, ductile Fe–Pd system has been chosen. Fe–Pd alloy system is known to show a thermoelastic fcc-to-fct marten- sitic transformation in alloys near ...
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Thermal Expansion and Magnetization Studies of Novel Ferromagnetic Shape Memory Alloys Ni52Mn12 5Fe12 5Ga23 and Ni2Mn0 75Cu0 25Ga
... The purpose of this study is to investigate the correlation between magnetism and crystallographic structure regarding the martensitic transformation. Two Heusler alloys were selected to achieve this purpose. One is an ...
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Mobility of Twin Boundaries in Fe Pd Based Ferromagnetic Shape Memory Alloys
... Mechanical spectroscopy is a very sensitive technique used to analyse defects interaction processes in materials and phase transformations and in particular it has been widely ap- plied to study the martensitic ...
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Transformation Temperatures and Electrochemical behavior of Polycrystalline Fe-Doped Ni-Mn-Ga and Co-Ni-Ga Alloys
... of ferromagnetic shape memory alloys that shows changes of shape, corrosion protection with coatings would be ...polycrystalline ferromagnetic shape memory alloys with ...
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Effect of Magnetic Field on Deformation Properties in Ferromagnetic Ni2MnGa Shape Memory Alloy
... Ferromagnetic shape memory alloy Ni-25 at%Mn-23 at%- Ga prepared by melting in an electric furnace was inves- tigated to study compression properties at various temper- atures with and without ...
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Reversible strain in Ni-Mn-Ga with collinear field and stress
... strains in Ni-Mn-Ga originate in the psuedo-elasticity that occurs due to the reorientation of the martensitic twin variants. In ferromagnetic shape memory alloys (FSMAs), however, the reorientation ...
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Magnetic Field Induced Two Way Shape Memory Effect of Ferromagnetic Ni2MnGa Sputtered Films
... typical shape memory alloy (SMA) such as Ni–Ti, the martensitic transformation occurs by temperature change and stress field, and the re-orientation of twin variant is induced by the stress field in the ...
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The studies on characteristics of magnetic memory signals of ferromagnetic component for double defect associated
... within ferromagnetic working pieces under load ...magnetic memory testing makes use of the stress-magnetism effect of ferromagnetic materials, based on ferromagnetic materials under the ...
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Microstructure and Shape Memory Effect of Cu Zn Ni Shape Memory Alloys
... The shape memory effect is a temperature-dependent ...During shape memory effect, if the recovery of shape is constrained/hindered, then the alloy generates a force that can be used to ...
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Online Full Text
... the shape memory and the superelastic forms of NiTi are ...the shape and the properties of the item ...the shape memory effect exhibited by NiTi shape memory alloys will ...
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