Kinetic arrest of martensitic transformation in NiCoMnA1 metamagnetic shape memory alloy

Xiao Xu; Wataru Ito; Masashi Tokunaga; Rie Y. Umetsu; Ryosuke Kainuma; Kiyohito Ishida

doi:10.2320/matertrans.M2010098

Kinetic arrest of martensitic transformation in NiCoMnA1 metamagnetic shape memory alloy

Xiao Xu, Wataru Ito, Masashi Tokunaga, Rie Y. Umetsu, Ryosuke Kainuma, Kiyohito Ishida

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

53 Citations (Scopus)

Abstract

Magnetic properties and martensitic transformation behaviors of N1CoMnAI metamagnetic shape memory alloys were investigated. The kinetic arrest phenomenon was observed at about 40 K during thermomagnetization measurements. At temperatures ranging from 4.2 to 200 K, magnetic field-induced reverse transformation was confirmed by a pulse magnetometer with a magnetic field up to 45 T. By plotting the equilibrium magnetic fields against the measured temperature, the transformation entropy change was calculated by using the Clausius Clapeyron equation. The transformation entropy change was found to become zero below 40 K, which can explain the appearance of the kinetic arrest phenomenon.

Original language	English
Pages (from-to)	1357-1360
Number of pages	4
Journal	Materials Transactions
Volume	51
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.M2010098
Publication status	Published - 2010 Jul

Keywords

Kinetic arrest
Meta
Nagnetic shape memory alloy
NiCoMnAl

ASJC Scopus subject areas

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

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10.2320/matertrans.M2010098

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title = "Kinetic arrest of martensitic transformation in NiCoMnA1 metamagnetic shape memory alloy",

abstract = "Magnetic properties and martensitic transformation behaviors of N1CoMnAI metamagnetic shape memory alloys were investigated. The kinetic arrest phenomenon was observed at about 40 K during thermomagnetization measurements. At temperatures ranging from 4.2 to 200 K, magnetic field-induced reverse transformation was confirmed by a pulse magnetometer with a magnetic field up to 45 T. By plotting the equilibrium magnetic fields against the measured temperature, the transformation entropy change was calculated by using the Clausius Clapeyron equation. The transformation entropy change was found to become zero below 40 K, which can explain the appearance of the kinetic arrest phenomenon.",

keywords = "Kinetic arrest, Meta, Nagnetic shape memory alloy, NiCoMnAl",

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

year = "2010",

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pages = "1357--1360",

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T1 - Kinetic arrest of martensitic transformation in NiCoMnA1 metamagnetic shape memory alloy

AU - Xu, Xiao

AU - Ito, Wataru

AU - Tokunaga, Masashi

AU - Umetsu, Rie Y.

AU - Kainuma, Ryosuke

AU - Ishida, Kiyohito

PY - 2010/7

Y1 - 2010/7

N2 - Magnetic properties and martensitic transformation behaviors of N1CoMnAI metamagnetic shape memory alloys were investigated. The kinetic arrest phenomenon was observed at about 40 K during thermomagnetization measurements. At temperatures ranging from 4.2 to 200 K, magnetic field-induced reverse transformation was confirmed by a pulse magnetometer with a magnetic field up to 45 T. By plotting the equilibrium magnetic fields against the measured temperature, the transformation entropy change was calculated by using the Clausius Clapeyron equation. The transformation entropy change was found to become zero below 40 K, which can explain the appearance of the kinetic arrest phenomenon.

AB - Magnetic properties and martensitic transformation behaviors of N1CoMnAI metamagnetic shape memory alloys were investigated. The kinetic arrest phenomenon was observed at about 40 K during thermomagnetization measurements. At temperatures ranging from 4.2 to 200 K, magnetic field-induced reverse transformation was confirmed by a pulse magnetometer with a magnetic field up to 45 T. By plotting the equilibrium magnetic fields against the measured temperature, the transformation entropy change was calculated by using the Clausius Clapeyron equation. The transformation entropy change was found to become zero below 40 K, which can explain the appearance of the kinetic arrest phenomenon.

KW - Kinetic arrest

KW - Meta

KW - Nagnetic shape memory alloy

KW - NiCoMnAl

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Kinetic arrest of martensitic transformation in NiCoMnA1 metamagnetic shape memory alloy

Abstract

Keywords

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