Reduction in required magnetic field to induce twin-boundary motion in ferromagnetic shape memory alloys

2004 ◽  
Vol 95 (11) ◽  
pp. 6965-6967 ◽  
Author(s):  
Eric Gans ◽  
Christopher Henry ◽  
Greg P. Carman
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Twin Boundary ◽  
Boundary Motion ◽  
Ferromagnetic Shape Memory Alloys ◽  
Ferromagnetic Shape Memory

On the stress-assisted magnetic-field-induced phase transformation in Ni2MnGa ferromagnetic shape memory alloys

2007 ◽  
Vol 55 (13) ◽  
pp. 4253-4269 ◽  
Author(s):  
H.E. Karaca ◽  
I. Karaman ◽  
B. Basaran ◽  
D.C. Lagoudas ◽  
Y.I. Chumlyakov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Ferromagnetic Shape Memory Alloys ◽  
Ferromagnetic Shape Memory

scholarly journals Training of the Ni–Mn–Fe–Ga ferromagnetic shape-memory alloys due cycling in high magnetic field

2003 ◽  
Vol 258-259 ◽  
pp. 523-525 ◽  
Author(s):  
A.A. Cherechukin ◽  
V.V. Khovailo ◽  
R.V. Koposov ◽  
E.P. Krasnoperov ◽  
T. Takagi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
High Magnetic Field ◽  
Ferromagnetic Shape Memory Alloys ◽  
Ferromagnetic Shape Memory

Giant Magnetostriction in Ferromagnetic Shape-Memory Alloys

MRS Bulletin ◽  
2002 ◽  
Vol 27 (2) ◽  
pp. 105-109 ◽  
Author(s):  
Tomoyuki Kakeshita ◽  
Kari Ullakko
Keyword(s):  
Magnetic Field ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Martensite Phase ◽  
Ferromagnetic Shape Memory Alloys ◽  
Recoverable Strain ◽  
Martensitic State ◽  
Magnetostrictive Behavior ◽  
Ferromagnetic Shape Memory ◽  
The Magnetic Field

AbstractShape-memory alloys are now widely used because they exhibit a large recoverable strain, which is caused by the conversion of variants in the martensite phase. The conversion of variants is usually promoted by the application of external stress. Recently, however, it was found that the conversion of variants can also be promoted by the application of a magnetic field to induce the martensitic state in ferromagnetic Ni2MnGa shape-memory alloys. Since then, the research in this field has focused considerable attention on applications for using the materials as actuators and sensors because their response to a magnetic field is much faster than their response to heating or cooling. Furthermore, the mechanism of the conversion of variants by the magnetic field has attracted academic interest from many researchers. In this article, we show giant magnetostrictive behavior in three ferromagnetic shape-memory alloys—Ni2MnGa, Fe-Pd, and Fe3Pt—and review the investigations performed so far by many researchers, including the present authors.

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