Kinetic arrest of martensitic transformation in Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy

Xiao Xu; Wataru Ito; Rie Y. Umetsu; Keiichi Koyama; Ryosuke Kainuma; Kiyohito Ishida

doi:10.2320/matertrans.MBW200915

Kinetic arrest of martensitic transformation in Ni_33.0Co _13.4Mn_39.7Ga_13.9 metamagnetic shape memory alloy

Xiao Xu, Wataru Ito, Rie Y. Umetsu, Keiichi Koyama, Ryosuke Kainuma, Kiyohito Ishida

Tohoku University

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

32 Citations (Scopus)

Abstract

Martensitic and magnetic properties of Ni_33.0Co _13.4Mn_39.7Ga_13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFTT) was also detected at various temperatures ranging from 4.2 to 300 K. By evaluation of the equilibrium magnetic fields and temperatures based on the transformation fields and temperatures, it was confirmed that the transformation entropy change below 120 K becomes almost zero, which results in the kinetic arrest phenomenon.

Original language	English
Pages (from-to)	469-471
Number of pages	3
Journal	Materials Transactions
Volume	51
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.MBW200915
Publication status	Published - 2010 Mar

Keywords

Kinetic arrest
Metamagnetic shape memory alloy
Nicomnga

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10.2320/matertrans.MBW200915

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title = "Kinetic arrest of martensitic transformation in Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy",

abstract = "Martensitic and magnetic properties of Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFTT) was also detected at various temperatures ranging from 4.2 to 300 K. By evaluation of the equilibrium magnetic fields and temperatures based on the transformation fields and temperatures, it was confirmed that the transformation entropy change below 120 K becomes almost zero, which results in the kinetic arrest phenomenon.",

keywords = "Kinetic arrest, Metamagnetic shape memory alloy, Nicomnga",

author = "Xiao Xu and Wataru Ito and Umetsu, {Rie Y.} and Keiichi Koyama and Ryosuke Kainuma and Kiyohito Ishida",

year = "2010",

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T1 - Kinetic arrest of martensitic transformation in Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy

AU - Xu, Xiao

AU - Ito, Wataru

AU - Umetsu, Rie Y.

AU - Koyama, Keiichi

AU - Kainuma, Ryosuke

AU - Ishida, Kiyohito

PY - 2010/3

Y1 - 2010/3

N2 - Martensitic and magnetic properties of Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFTT) was also detected at various temperatures ranging from 4.2 to 300 K. By evaluation of the equilibrium magnetic fields and temperatures based on the transformation fields and temperatures, it was confirmed that the transformation entropy change below 120 K becomes almost zero, which results in the kinetic arrest phenomenon.

AB - Martensitic and magnetic properties of Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFTT) was also detected at various temperatures ranging from 4.2 to 300 K. By evaluation of the equilibrium magnetic fields and temperatures based on the transformation fields and temperatures, it was confirmed that the transformation entropy change below 120 K becomes almost zero, which results in the kinetic arrest phenomenon.

KW - Kinetic arrest

KW - Metamagnetic shape memory alloy

KW - Nicomnga

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Kinetic arrest of martensitic transformation in Ni_33.0Co _13.4Mn_39.7Ga_13.9 metamagnetic shape memory alloy

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Keywords

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