Large magnetic-field-induced strain in Co–Ni–Al single-variant ferromagnetic shape memory alloy
| Autor: | Ryosuke Kainuma, Asaya Fujita, Kazuaki Fukamichi, Katsunari Oikawa, Haruhiko Morito, Kiyohito Ishida |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Condensed matter physics Mechanical Engineering Metallurgy Metals and Alloys Magnetostriction Shape-memory alloy Condensed Matter Physics Stress (mechanics) Magnetic anisotropy Magnetization Magnetic shape-memory alloy Ferromagnetism Mechanics of Materials General Materials Science Crystal twinning |
| Zdroj: | Scripta Materialia. 63:379-382 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2010.04.026 |
| Popis: | At room temperature, Co 41 Ni 32 Al 27 single-variant ferromagnetic shape memory alloy with a uniaxial magnetic anisotropy constant of –2.0 × 10 6 erg cm –3 exhibits a large magnetic-field-induced strain of 3.3% under a static compressive stress of about 10 MPa applied along the hard magnetization direction of the c -axis ( c / a > 1). Compared with data for other alloys, it becomes clear that a small change in twinning stress in the stress–strain curve is necessary for a large strain. |
| Databáze: | OpenAIRE |
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