Large magnetic-field-induced strain in Co-Ni-Al single-variant ferromagnetic shape memory alloy

H. Morito; K. Oikawa; Asaya Fujita; K. Fukamichi; R. Kainuma; K. Ishida

doi:10.1016/j.scriptamat.2010.04.026

Large magnetic-field-induced strain in Co-Ni-Al single-variant ferromagnetic shape memory alloy

H. Morito, K. Oikawa, Asaya Fujita, K. Fukamichi, R. Kainuma, K. Ishida

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

At room temperature, Co₄₁Ni₃₂Al₂₇ single-variant ferromagnetic shape memory alloy with a uniaxial magnetic anisotropy constant of -2.0 × 10⁶ 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.

Original language	English
Pages (from-to)	379-382
Number of pages	4
Journal	Scripta Materialia
Volume	63
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2010.04.026
Publication status	Published - 2010 Aug

Keywords

Co-Ni-Al alloy
Ferromagnetic shape memory alloy
Magnetic anisotropy
Magnetostriction

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2010.04.026

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title = "Large magnetic-field-induced strain in Co-Ni-Al single-variant ferromagnetic shape memory alloy",

abstract = "At room temperature, Co41Ni32Al27 single-variant ferromagnetic shape memory alloy with a uniaxial magnetic anisotropy constant of -2.0 × 106 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.",

keywords = "Co-Ni-Al alloy, Ferromagnetic shape memory alloy, Magnetic anisotropy, Magnetostriction",

author = "H. Morito and K. Oikawa and Asaya Fujita and K. Fukamichi and R. Kainuma and K. Ishida",

note = "Funding Information: The authors wish to thank Messrs T. Ota and T. Kudo for their experimental supports. A part of the present study was supported by the Grant-in-Aids for Core Research for Evolutional Science and Technology (CREST), Scientific Research from the Ministry of Education, Science, Sports and Culture, Japan , and the Research Fellow of the Japan Society . The support from the Global COE Project is also acknowledged.",

year = "2010",

month = aug,

doi = "10.1016/j.scriptamat.2010.04.026",

language = "English",

volume = "63",

pages = "379--382",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Large magnetic-field-induced strain in Co-Ni-Al single-variant ferromagnetic shape memory alloy

AU - Morito, H.

AU - Oikawa, K.

AU - Fujita, Asaya

AU - Fukamichi, K.

AU - Kainuma, R.

AU - Ishida, K.

N1 - Funding Information: The authors wish to thank Messrs T. Ota and T. Kudo for their experimental supports. A part of the present study was supported by the Grant-in-Aids for Core Research for Evolutional Science and Technology (CREST), Scientific Research from the Ministry of Education, Science, Sports and Culture, Japan , and the Research Fellow of the Japan Society . The support from the Global COE Project is also acknowledged.

PY - 2010/8

Y1 - 2010/8

N2 - At room temperature, Co41Ni32Al27 single-variant ferromagnetic shape memory alloy with a uniaxial magnetic anisotropy constant of -2.0 × 106 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.

AB - At room temperature, Co41Ni32Al27 single-variant ferromagnetic shape memory alloy with a uniaxial magnetic anisotropy constant of -2.0 × 106 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.

KW - Co-Ni-Al alloy

KW - Ferromagnetic shape memory alloy

KW - Magnetic anisotropy

KW - Magnetostriction

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VL - 63

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JO - Scripta Materialia

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IS - 4

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Large magnetic-field-induced strain in Co-Ni-Al single-variant ferromagnetic shape memory alloy

Abstract

Keywords

ASJC Scopus subject areas

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