Measurements of Magnetic Properties of Fe-Mn-Cr-Si-Sm-B Ferromagnetic Shape Memory Ribbons Depending on Stress and Temperature

2010 ◽  
Vol 670 ◽  
pp. 122-130
Author(s):  
Takashi Todaka ◽  
D. Yamamichi ◽  
Masato Enokizono
Keyword(s):  
Magnetic Properties ◽  
Shape Memory ◽  
Melt Spinning ◽  
Tensile Load ◽  
Functional Materials ◽  
Magnetic Sensors ◽  
Sensors And Actuators ◽  
Ferromagnetic Property ◽  
Shape Memory Property ◽  
Ferromagnetic Shape Memory

This paper presents measured magnetic and shape memory properties of Fe-Mn-Cr-Si-Sm-B ferromagnetic shape memory ribbons depending on tensile stress and temperature. The samples were produced with the melt spinning method in air and the magnetic properties were measured with an open solenoid type measurement system under controlling their temperature and tensile load. The alloys are multi-functional materials, which have both the ferromagnetic property and shape memory property. The measured results show applicability of the produced ribbon in applications for magnetic sensors and actuators.

Magnetic properties of iron-based ferromagnetic shape-memory ribbon produced by melt-spinning technique

2006 ◽  
Vol 304 (2) ◽  
pp. e516-e518 ◽  
Author(s):  
Takashi Todaka ◽  
Teruo Yasuoka ◽  
Masato Enokizono ◽  
Kenji Tsutsumi ◽  
Roland Groessinger ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shape Memory ◽  
Melt Spinning ◽  
Iron Based ◽  
Ferromagnetic Shape Memory ◽  
Melt Spinning Technique

Magnetic properties of ferromagnetic shape memory alloys Ni _{2-x} Cu _{x} MnGa

2005 ◽  
Vol 21 (3-4) ◽  
pp. 151-157 ◽  
Author(s):  
Takeshi Kanomata ◽  
Takuji Nozawa ◽  
Daisuke Kikuchi ◽  
Hironori Nishihara ◽  
Keiichi Koyama ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Ferromagnetic Shape Memory

Rapid-Solidified Metallic Actuator Materials Developed by Electromagnetic Nozzleless Melt Spinning Method

1999 ◽  
Vol 604 ◽  
Author(s):  
Y. Furuya
Keyword(s):  
Shape Memory ◽  
Rapid Solidification ◽  
Melt Spinning ◽  
Material Design ◽  
Thin Plates ◽  
Molten Metals ◽  
Short Fibers ◽  
Crystal Anisotropy ◽  
Electro Magnetic ◽  
Ferromagnetic Shape Memory

AbstractElectro-magnetic nozzleless melt-spinning method was developed by combining the control of the flow down of the molten metals after electromagnetic float-melting(i.e. levitation) with rapid solidification by rotating roll. The metallurgical grain microstructures can be changed by rotating roll speed. It was confinned that the produced, intermetallic TiNi and NiAl system alloy thin plates showed the strong crystal anisotropy, higher shape memory functional properties than those of the conventionally processed melt-worked samples having its same origin. As new SMAs by using this method, ferromagnetic shape memory, FePd alloy having very large magnetostriction and super high temperature shape memory, RuTa alloy having the transformation over 1000°C were developed. Moreover, our recent study on the advanced rapid-solidification machine to produce many kinds of short fibers as well as ribbons is introduced. Finally, harmonic material design for sensor/actuator stacking composite system, namely “Smart Board” for aircraft structures will be introduced.

Structural and Magnetic Properties of Melt-Spun Ni-Mn(Fe)-Ga Ferromagnetic Shape Memory Ribbons

2014 ◽  
Vol 50 (4) ◽  
pp. 1-3 ◽  
Author(s):  
Vladimir V. Khovaylo ◽  
Viktor V. Koledov ◽  
Dmitry I. Kuchin ◽  
Vladimir G. Shavrov ◽  
Natalia N. Resnina ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Shape Memory ◽  
Melt Spun ◽  
Structural And Magnetic Properties ◽  
Ferromagnetic Shape Memory

Phase structure and magnetic properties of the annealed Mn-rich Ni–Mn–Ga ferromagnetic shape memory thin films

2015 ◽  
Vol 61 ◽  
pp. 95-100 ◽  
Author(s):  
S. Vinodh Kumar ◽  
R.K. Singh ◽  
S. Seenithurai ◽  
S. Bysakh ◽  
M. Manivel Raja ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Shape Memory ◽  
Phase Structure ◽  
Ferromagnetic Shape Memory

Ferromagnetic Shape Memory Heusler Alloys

2012 ◽  
Vol 189 ◽  
pp. 189-208 ◽  
Author(s):  
Vijay Srivastava ◽  
Kanwal Preet Bhatti
Keyword(s):  
Magnetic Properties ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Heusler Alloy ◽  
Heusler Alloys ◽  
Structural Similarity ◽  
Magnetic Shape Memory ◽  
Half Metallicity ◽  
Ferromagnetic Shape Memory

Although Heusler alloys have been known for more than a century, but since the last decade there has been a quantum jump in research in this area. Heusler alloys show remarkable properties, such as ferromagnetic shape memory effect, magnetocaloric effect, half metallicity, and most recently it has been shown that it can be used for direct conversion of heat into electricity. Heusler alloys Ni-Mn-Z (Z=Ga, Al, In, Sn, Sb), show a reversible martensitic transformation and unusual magnetic properties. Other classes of intermetallic Heusler alloy families that are half metallic (such as the half Heusler alloys Ni-Mn-Sb and the full Heusler alloy Co2MnGe) are attractive because of their high Curie temperature and structural similarity to binary semiconductors. Unlike Ni-Mn-Ga, Ni-Mn-In and Ni-Mn-Sn transform from ferromagnetic austenite to non-ferromagnetic martensite. As is consistent with the Clausius-Clapeyron equation, the martensitic phase transformation can be manipulated by a magnetic field, leading to possible applications of these materials enabling the magnetic shape memory effect, energy conversion and solid state refrigeration. In this paper, we summarize the salient features of Heusler alloys, like the structure, magnetic properties and potential application of this family of alloys in industry.

Fe-Mn-Si/6.5wt%Si-Fe Bilayer Ribbons produced by Using Melt Spinning Technique

2012 ◽  
Vol 721 ◽  
pp. 53-58 ◽  
Author(s):  
Daisuke Imamuara ◽  
Takashi Todaka ◽  
Masato Enokizono
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Melt Spinning ◽  
Magnetic Layer ◽  
Magnetic Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Application Range ◽  
The Common ◽  
Ferromagnetic Shape Memory ◽  
Melt Spinning Technique

Recently, progress of the intelligent materials plays a big role in development of science and technology. We have ever tried to develop ferromagnetic shape memory alloys to expand application range of the common non-magnetic shape memory alloys, which are typical intelligent material. However the saturation magnetization and the shape memory effect were in a relation of trade-off, so we couldn’t get a good result. In this research, we tried to develop ferromagnetic shape-memory alloys as a composite material by using the single-roll melt spinning technique. They are bilayer ribbons, which have both shape memory layer and magnetic layer.

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