Ferromagnetic Shape Memory Alloys
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 ...
5
Combinatorial Investigation of Ferromagnetic Shape Memory Alloys in the Ni Mn Al Ternary System Using a Composition Spread Technique
... Using a thin-film composition spread technique, we have mapped the phase diagram of the Ni-Mn-Al ternary system in search of ferromagnetic shape-memory alloys (FMSA). A characterization ...
5
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 ...
5
Mechanical and Magnetic Properties of Ni Mn Ga Gd Ferromagnetic Shape Memory Alloys
... Ni-Mn-Ga ferromagnetic shape memory alloys (FSMAs) have received more and more attention as potential microactuator materials because they show a large magnetic-field-induced strain (MFIS) up ...
6
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 ...
12
Magnetomechanical performance and mechanical properties of Ni-Mn-Ga ferromagnetic shape memory alloys
... both shape and magnitude, so it is likely that the fundamental ideas concerning the relationship between internal field, external stress, and yield stress are ...
11
Martensitic Transformation and Magnetic Properties of Ni Co Mn In Gd Ferromagnetic Shape Memory Alloys
... 1.6) alloys is investigated. The addition of Gd results in a change in the microstructure. With the increase of Gd content, the grain size is clearly reduced and the volume fraction of the second phase increases ...
6
Thermal Expansion and Magnetization Studies of Novel Ferromagnetic Shape Memory Alloys Ni52Mn12 5Fe12 5Ga23 and Ni2Mn0 75Cu0 25Ga
... Heusler alloys were selected to achieve this ...a ferromagnetic phase, and the other is an alloy which occurs martensitic transition at Curie temperature T C , where T C is a Curie temperature of ...
6
Mobility of Twin Boundaries in Fe Pd Based Ferromagnetic Shape Memory Alloys
... Measurements were carried out in amplitude dependent damping regime. A new model based on the Friedel theory was developed to obtain the activation energy (2 kJ/mol) for twin boundaries motion. The model describes the ...
8
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 ...these alloys have to exhibit high resistance to corrosion ...
10
Ferromagnetic Shape Memory Microactuators
... Ferromagnetic shape memory alloys (FSMAs) are a new class of functional materials, which show, besides shape memory and pseudoelasticity, a strong influence of an external ...
6
Electrochemical and Mechanical Behavior in Polycrystalline Co-Ni-Ga Shape Memory Alloys
... of ferromagnetic shape memory alloys experience a large change of shape, corrosion protection with additional coatings would be nearly ...these alloys must exhibit high ...
11
Recent Progress in Shape Memory Alloys
... perfect shape recovery strain of about 3% can be realized by applying both steady and single- pulsed (several milliseconds wide) magnetic fields of 7 T 23) ...
5
Effect of Magnetic Field on Deformation Properties in Ferromagnetic Ni2MnGa Shape Memory Alloy
... such alloys have extensively been studied recently to try to understand features related to SME and its related phase transformation behavior with and without magnetic ...The shape change in the [221] ...
8
Study and applications of shape memory alloys (SMA)
... Despite the fact that the SME had been found in an AuCd alloy as early as 1932, the attraction of this phenomenon was not s o apparent until 1971, when significant recoverable strain was observed in a NiTi alloy at the ...
7
Magnetostriction of ternary Fe–Ga–X alloys (X=Ni,Mo,Sn,Al)
... 800 °C, 100 reaches an astonishing 260 ppm. 2 The available strains (3/2 100 ) for the Fe–Ga alloy are comparable to those of PZT ceramics. At stresses up to 100 MPa, saturation values of the magnetostriction can be ...
5
Use of shape-memory alloys in construction: a critical review
... Shape-memory alloys possess a number of unique characteristics, such as shape memory and ...superelasticity. Shape memory means the alloys return to their original ...
9
Mechanics examination on the wear behaviour of shape memory alloys
... In the previous section, we used Hertz theory to analyze the maximum contact pressure for a typical NiTi alloy and a typical steel alloy. Strictly, Hertz theory is only suitable for elastic materials. During a wear ...
6
Confection and Assessment of a Dynamic Orthotics Using a Nitinol Alloy
... these alloys into good performers when great variety of movement is ...other alloys with great ductility, these thermo-active alloys (as they are commercially known) offer a greater range of ...
6
Development of Nano-Structured Thin Film Shape Memory Alloys for MEMS Applications
... Sputtering systems generally consist of an anode (substrate) and cathode (target). Positive gas ions strike the cathode and physically eject the target atoms. There are three main types of sputtering systems used in the ...
196