Magnetic-field-induced transition for reentrant martensitic transformation in Co-Cr-Ga-Si shape memory alloys

Xiao Xu; Takumi Kihara; Atsushi Miyake; Masashi Tokunaga; Takeshi Kanomata; Ryosuke Kainuma

doi:10.1016/j.jmmm.2018.07.011

Magnetic-field-induced transition for reentrant martensitic transformation in Co-Cr-Ga-Si shape memory alloys

Xiao Xu, Takumi Kihara, Atsushi Miyake, Masashi Tokunaga, Takeshi Kanomata, Ryosuke Kainuma

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

3 Citations (Scopus)

Abstract

We report the magnetic-field-induced transition in a Co_51.7Cr_26.8Ga_10.6Si_10.9 alloy. Because of the unique reentrant martensitic transformation behavior, the reentrant parent phase was found to be induced by pulsed high magnetic fields up to 550 kOe, which is a new type of magnetic-field-induced transition of martensite. The critical magnetic field-temperature H–T phase diagram was completed, from which the entropy change for the reentrant martensitic transformation was estimated using the Clausius-Clapeyron relationship. A good consistency was found for the entropy change in comparison with those from earlier reports.

Original language	English
Pages (from-to)	273-276
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	466
DOIs	https://doi.org/10.1016/j.jmmm.2018.07.011
Publication status	Published - 2018 Nov 15

Keywords

Co-Cr-Ga-Si
Heusler alloy
Magnetic materials
Magnetic-field-induced transition
Reentrant martensitic transformation
Shape memory materials

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Magnetic-field-induced transition for reentrant martensitic transformation in Co-Cr-Ga-Si shape memory alloys",

abstract = "We report the magnetic-field-induced transition in a Co51.7Cr26.8Ga10.6Si10.9 alloy. Because of the unique reentrant martensitic transformation behavior, the reentrant parent phase was found to be induced by pulsed high magnetic fields up to 550 kOe, which is a new type of magnetic-field-induced transition of martensite. The critical magnetic field-temperature H–T phase diagram was completed, from which the entropy change for the reentrant martensitic transformation was estimated using the Clausius-Clapeyron relationship. A good consistency was found for the entropy change in comparison with those from earlier reports.",

keywords = "Co-Cr-Ga-Si, Heusler alloy, Magnetic materials, Magnetic-field-induced transition, Reentrant martensitic transformation, Shape memory materials",

author = "Xiao Xu and Takumi Kihara and Atsushi Miyake and Masashi Tokunaga and Takeshi Kanomata and Ryosuke Kainuma",

year = "2018",

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day = "15",

doi = "10.1016/j.jmmm.2018.07.011",

language = "English",

volume = "466",

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journal = "Journal of Magnetism and Magnetic Materials",

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T1 - Magnetic-field-induced transition for reentrant martensitic transformation in Co-Cr-Ga-Si shape memory alloys

AU - Xu, Xiao

AU - Kihara, Takumi

AU - Miyake, Atsushi

AU - Tokunaga, Masashi

AU - Kanomata, Takeshi

AU - Kainuma, Ryosuke

PY - 2018/11/15

Y1 - 2018/11/15

N2 - We report the magnetic-field-induced transition in a Co51.7Cr26.8Ga10.6Si10.9 alloy. Because of the unique reentrant martensitic transformation behavior, the reentrant parent phase was found to be induced by pulsed high magnetic fields up to 550 kOe, which is a new type of magnetic-field-induced transition of martensite. The critical magnetic field-temperature H–T phase diagram was completed, from which the entropy change for the reentrant martensitic transformation was estimated using the Clausius-Clapeyron relationship. A good consistency was found for the entropy change in comparison with those from earlier reports.

AB - We report the magnetic-field-induced transition in a Co51.7Cr26.8Ga10.6Si10.9 alloy. Because of the unique reentrant martensitic transformation behavior, the reentrant parent phase was found to be induced by pulsed high magnetic fields up to 550 kOe, which is a new type of magnetic-field-induced transition of martensite. The critical magnetic field-temperature H–T phase diagram was completed, from which the entropy change for the reentrant martensitic transformation was estimated using the Clausius-Clapeyron relationship. A good consistency was found for the entropy change in comparison with those from earlier reports.

KW - Co-Cr-Ga-Si

KW - Heusler alloy

KW - Magnetic materials

KW - Magnetic-field-induced transition

KW - Reentrant martensitic transformation

KW - Shape memory materials

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JO - Journal of Magnetism and Magnetic Materials

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