In situ optical microscopic observation of NiCoMnIn metamagnetic shape memory alloy under pulsed high magnetic field

Xiao Xu; Wataru Ito; Ineko Katakura; Masashi Tokunaga; Ryosuke Kainuma

doi:10.1016/j.scriptamat.2011.08.016

In situ optical microscopic observation of NiCoMnIn metamagnetic shape memory alloy under pulsed high magnetic field

Xiao Xu, Wataru Ito, Ineko Katakura, Masashi Tokunaga, Ryosuke Kainuma

ENG - Metallurgy

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

21 Citations (Scopus)

Abstract

In situ microscopic imaging observation was performed on Ni ₄₅Co₅Mn_36.7In_13.3 metamagnetic shape memory alloy. Magnetic field-induced reverse martensitic transformation and heating-induced martensitic transformation were directly observed for the first time. The fraction of martensite phase was evaluated by contrast change from micrographs and critical magnetic fields were determined. Isothermal growth of martensite after magnetic field application was also observed. Comparison between the micrographs after the application of a magnetic field and on cooling also revealed the nature of the adiabatic process under a strong driving force.

Original language	English
Pages (from-to)	946-949
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2011.08.016
Publication status	Published - 2011 Dec

Keywords

In situ observation
Magnetic field-induced transformation
Martensitic phase transformation
Metamagnetic shape memory alloy
NiCoMnIn

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.2011.08.016

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title = "In situ optical microscopic observation of NiCoMnIn metamagnetic shape memory alloy under pulsed high magnetic field",

abstract = "In situ microscopic imaging observation was performed on Ni 45Co5Mn36.7In13.3 metamagnetic shape memory alloy. Magnetic field-induced reverse martensitic transformation and heating-induced martensitic transformation were directly observed for the first time. The fraction of martensite phase was evaluated by contrast change from micrographs and critical magnetic fields were determined. Isothermal growth of martensite after magnetic field application was also observed. Comparison between the micrographs after the application of a magnetic field and on cooling also revealed the nature of the adiabatic process under a strong driving force.",

keywords = "In situ observation, Magnetic field-induced transformation, Martensitic phase transformation, Metamagnetic shape memory alloy, NiCoMnIn",

author = "Xiao Xu and Wataru Ito and Ineko Katakura and Masashi Tokunaga and Ryosuke Kainuma",

note = "Funding Information: This study was supported by a Grant-in-Aid for Scientific Research and JSPS Fellows from the Japan Society for the Promotion of Science (JSPS) and by the Global COE Program “Materials Integration” (International Center of Education and Research), Tohoku University, MEXT, Japan. This work was also supported in part by a Grant-in-Aid for Scientific Research on Priority Areas “High Field Spin Science in 100 T” (No. 451) from MEXT, Japan. ",

year = "2011",

month = dec,

doi = "10.1016/j.scriptamat.2011.08.016",

language = "English",

volume = "65",

pages = "946--949",

journal = "Scripta Materialia",

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TY - JOUR

T1 - In situ optical microscopic observation of NiCoMnIn metamagnetic shape memory alloy under pulsed high magnetic field

AU - Xu, Xiao

AU - Ito, Wataru

AU - Katakura, Ineko

AU - Tokunaga, Masashi

AU - Kainuma, Ryosuke

N1 - Funding Information: This study was supported by a Grant-in-Aid for Scientific Research and JSPS Fellows from the Japan Society for the Promotion of Science (JSPS) and by the Global COE Program “Materials Integration” (International Center of Education and Research), Tohoku University, MEXT, Japan. This work was also supported in part by a Grant-in-Aid for Scientific Research on Priority Areas “High Field Spin Science in 100 T” (No. 451) from MEXT, Japan.

PY - 2011/12

Y1 - 2011/12

N2 - In situ microscopic imaging observation was performed on Ni 45Co5Mn36.7In13.3 metamagnetic shape memory alloy. Magnetic field-induced reverse martensitic transformation and heating-induced martensitic transformation were directly observed for the first time. The fraction of martensite phase was evaluated by contrast change from micrographs and critical magnetic fields were determined. Isothermal growth of martensite after magnetic field application was also observed. Comparison between the micrographs after the application of a magnetic field and on cooling also revealed the nature of the adiabatic process under a strong driving force.

AB - In situ microscopic imaging observation was performed on Ni 45Co5Mn36.7In13.3 metamagnetic shape memory alloy. Magnetic field-induced reverse martensitic transformation and heating-induced martensitic transformation were directly observed for the first time. The fraction of martensite phase was evaluated by contrast change from micrographs and critical magnetic fields were determined. Isothermal growth of martensite after magnetic field application was also observed. Comparison between the micrographs after the application of a magnetic field and on cooling also revealed the nature of the adiabatic process under a strong driving force.

KW - In situ observation

KW - Magnetic field-induced transformation

KW - Martensitic phase transformation

KW - Metamagnetic shape memory alloy

KW - NiCoMnIn

UR - http://www.scopus.com/inward/record.url?scp=80054050803&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80054050803&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2011.08.016

DO - 10.1016/j.scriptamat.2011.08.016

M3 - Article

AN - SCOPUS:80054050803

VL - 65

SP - 946

EP - 949

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 11

ER -

In situ optical microscopic observation of NiCoMnIn metamagnetic shape memory alloy under pulsed high magnetic field

Abstract

Keywords

ASJC Scopus subject areas

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