scholarly journals Development of Iron-based ferromagnetic shape memory alloys by means of melt spinning technique

2006 ◽  
Vol 18 (1/2) ◽  
pp. 70-73 ◽  
Author(s):  
Takashi TODAKA ◽  
Yuji TSUCHIDA ◽  
Masato ENOKIZONO ◽  
Tsugunori KANADA
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Melt Spinning ◽  
Ferromagnetic Shape Memory Alloys ◽  
Iron Based ◽  
Ferromagnetic Shape Memory ◽  
Melt Spinning Technique

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.

Magnetic field-induced strain in iron-based ferromagnetic shape memory alloys

2003 ◽  
Vol 93 (10) ◽  
pp. 8647-8649 ◽  
Author(s):  
Tatsuaki Sakamoto ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita ◽  
Tetsuya Takeuchi ◽  
Kohji Kishio
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Iron Based ◽  
Ferromagnetic Shape Memory

scholarly journals Rearrangement of Martensite Variants in Iron-Based Ferromagnetic Shape Memory Alloys under Magnetic Field

2004 ◽  
Vol 45 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Takashi Fukuda ◽  
Tatsuaki Sakamoto ◽  
Tomoyuki Kakeshita ◽  
Tetsuya Takeuchi ◽  
Kohji Kishio
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Iron Based ◽  
Ferromagnetic Shape Memory

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

Effects of Annealing on Microstructure and Martensitic Transition of Ni-Mn-Co-In Ferromagnetic Shape Memory Alloys

2011 ◽  
Vol 674 ◽  
pp. 171-175
Author(s):  
Katarzyna Bałdys ◽  
Grzegorz Dercz ◽  
Łukasz Madej
Keyword(s):  
Electron Microscopy ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Smart Materials ◽  
Martensitic Transition ◽  
Magnetic Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Initial State ◽  
X Ray ◽  
Ferromagnetic Shape Memory

The ferromagnetic shape memory alloys (FSMA) are relatively the brand new smart materials group. The most interesting issue connected with FSMA is magnetic shape memory, which gives a possibility to achieve relatively high strain (over 8%) caused by magnetic field. In this paper the effect of annealing on the microstructure and martensitic transition on Ni-Mn-Co-In ferromagnetic shape memory alloy has been studied. The alloy was prepared by melting of 99,98% pure Ni, 99,98% pure Mn, 99,98% pure Co, 99,99% pure In. The chemical composition, its homogeneity and the alloy microstructure were characterized using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The phase composition was also studied by X-ray analysis. The transformation course and characteristic temperatures were determined by the use of differential scanning calorimetry (DSC) and magnetic balance techniques. The results show that Tc of the annealed sample was found to decrease with increasing the annealing temperature. The Ms and Af increases with increasing annealing temperatures and showed best results in 1173K. The studied alloy exhibits a martensitic transformation from a L21 austenite to a martensite phase with a 7-layer (14M) and 5-layer (10M) modulated structure. The lattice constants of the L21 (a0) structure determined by TEM and X-ray analysis in this alloy were a0=0,4866. The TEM observation exhibit that the studied alloy in initial state has bigger accumulations of 10M and 14M structures as opposed from the annealed state.

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