Abstract
We have developed new ferromagnetic shape memory alloys, Co2Ni2-xGax(x=1, 1.12, 1.15, 1.17), which have large strain caused by the magnetic-field-derived re-arrangement of martensite twin. The ribbon samples formed by rapidly solidified, melt-spinning methods showed strong anisotropy and large magnetostriction, ε∼180 × 10-6 at applied magnetic field, 0.8 T in low temperature. In contrast to poor ductility of the well-known ferromagnetic shape memory alloy Ni2MnGa, some of the ribbons have good ductility and are not broken even after bending to an angle of 180°.
Original language | English |
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Pages (from-to) | 147-150 |
Number of pages | 4 |
Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
Volume | 66 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2002 Mar |
Externally published | Yes |
Keywords
- Ferromagnetic shape memory alloy
- Heusler
- Magnetostriction
- Martensite
- Rapidly solidification
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry