Isothermal nature of martensitic transformation in an Ni 45Co5Mn36.5In13.5 magnetic shape memory alloy

Yong Hee Lee; Mitsuharu Todai; Takahiro Okuyama; Takashi Fukuda; Tomoyuki Kakeshita; Ryosuke Kainuma

doi:10.1016/j.scriptamat.2010.12.030

Isothermal nature of martensitic transformation in an Ni ₄₅Co₅Mn_36.5In_13.5 magnetic shape memory alloy

Yong Hee Lee, Mitsuharu Todai, Takahiro Okuyama, Takashi Fukuda, Tomoyuki Kakeshita, Ryosuke Kainuma

ENG - Metallurgy

Osaka University

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

41 Citations (Scopus)

Abstract

Recently, kinetic arrest of martensitic transformation was reported in Ni-Co-Mn-In alloys. The transformation shows time dependence, and proceeds even during the heating process. In this study, we comprehensively explain the reason for such phenomena based on a model previously derived by one of the authors: any martensitic transformation is isothermal, showing a C-curve in the time-temperature-transformation diagram. Our experimental results from an Ni₄₅Co₅Mn_36.5In_13.5 alloy confirm the validity of the model.

Original language	English
Pages (from-to)	927-930
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2010.12.030
Publication status	Published - 2011 May

Keywords

Magnetic properties
Martensitic phase transformation
Phase transformation kinetics
Shape memory alloys

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10.1016/j.scriptamat.2010.12.030

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title = "Isothermal nature of martensitic transformation in an Ni 45Co5Mn36.5In13.5 magnetic shape memory alloy",

abstract = "Recently, kinetic arrest of martensitic transformation was reported in Ni-Co-Mn-In alloys. The transformation shows time dependence, and proceeds even during the heating process. In this study, we comprehensively explain the reason for such phenomena based on a model previously derived by one of the authors: any martensitic transformation is isothermal, showing a C-curve in the time-temperature-transformation diagram. Our experimental results from an Ni45Co5Mn36.5In13.5 alloy confirm the validity of the model.",

keywords = "Magnetic properties, Martensitic phase transformation, Phase transformation kinetics, Shape memory alloys",

author = "Lee, {Yong Hee} and Mitsuharu Todai and Takahiro Okuyama and Takashi Fukuda and Tomoyuki Kakeshita and Ryosuke Kainuma",

note = "Funding Information: This work was supported by the Global COE Program “Center of Excellence for Advanced Structural and Functional Design” by MEXT Japan.",

year = "2011",

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doi = "10.1016/j.scriptamat.2010.12.030",

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TY - JOUR

T1 - Isothermal nature of martensitic transformation in an Ni 45Co5Mn36.5In13.5 magnetic shape memory alloy

AU - Lee, Yong Hee

AU - Todai, Mitsuharu

AU - Okuyama, Takahiro

AU - Fukuda, Takashi

AU - Kakeshita, Tomoyuki

AU - Kainuma, Ryosuke

N1 - Funding Information: This work was supported by the Global COE Program “Center of Excellence for Advanced Structural and Functional Design” by MEXT Japan.

PY - 2011/5

Y1 - 2011/5

N2 - Recently, kinetic arrest of martensitic transformation was reported in Ni-Co-Mn-In alloys. The transformation shows time dependence, and proceeds even during the heating process. In this study, we comprehensively explain the reason for such phenomena based on a model previously derived by one of the authors: any martensitic transformation is isothermal, showing a C-curve in the time-temperature-transformation diagram. Our experimental results from an Ni45Co5Mn36.5In13.5 alloy confirm the validity of the model.

AB - Recently, kinetic arrest of martensitic transformation was reported in Ni-Co-Mn-In alloys. The transformation shows time dependence, and proceeds even during the heating process. In this study, we comprehensively explain the reason for such phenomena based on a model previously derived by one of the authors: any martensitic transformation is isothermal, showing a C-curve in the time-temperature-transformation diagram. Our experimental results from an Ni45Co5Mn36.5In13.5 alloy confirm the validity of the model.

KW - Magnetic properties

KW - Martensitic phase transformation

KW - Phase transformation kinetics

KW - Shape memory alloys

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M3 - Article

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JF - Scripta Materialia

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ER -

Isothermal nature of martensitic transformation in an Ni ₄₅Co₅Mn_36.5In_13.5 magnetic shape memory alloy

Abstract

Keywords

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