Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys

Katsunari Oikawa; Yousuke Imano; Volodymyr A. Chernenko; Fenghua Luo; Toshihiro Omori; Yuji Sutou; Ryosuke Kainuma; Takeshi Kanomata; Kiyohito Ishida

doi:10.2320/matertrans.46.734

Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys

Katsunari Oikawa, Yousuke Imano, Volodymyr A. Chernenko, Fenghua Luo, Toshihiro Omori, Yuji Sutou, Ryosuke Kainuma, Takeshi Kanomata, Kiyohito Ishida

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

39 Citations (Scopus)

Abstract

The effect of Co addition on the martensitic transition and magnetic properties of the Ni-Fe-Ga β alloys is investigated. The values of both the Curie temperature T _c and martensitic transition starting temperature M _s increase, while the saturation magnetization I _s decreases with increasing Co content in the series of Ni ₅₁Fe _22-XCo _XGa ₂₇ alloys. On the other hand, the values of both T _c and I _s increase and M _s decrease with increasing Co content in the series of Ni _54-XFe ₁₉Co _XGa ₂₇ alloys. T _c and I _s show a strong dependence on the average magnetic valence number Zm. Consequently, Co is an effective element to control both the martensitic and the magnetic transition temperatures.

Original language	English
Pages (from-to)	734-737
Number of pages	4
Journal	Materials Transactions
Volume	46
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.46.734
Publication status	Published - 2005 Mar

Keywords

Iron-nickel-cobalt-gallium alloy
Martensitic transition
Phase diagram
Shape memory ferromagnetic alloy

ASJC Scopus subject areas

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

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10.2320/matertrans.46.734

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title = "Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys",

abstract = "The effect of Co addition on the martensitic transition and magnetic properties of the Ni-Fe-Ga β alloys is investigated. The values of both the Curie temperature T c and martensitic transition starting temperature M s increase, while the saturation magnetization I s decreases with increasing Co content in the series of Ni 51Fe 22-XCo XGa 27 alloys. On the other hand, the values of both T c and I s increase and M s decrease with increasing Co content in the series of Ni 54-XFe 19Co XGa 27 alloys. T c and I s show a strong dependence on the average magnetic valence number Zm. Consequently, Co is an effective element to control both the martensitic and the magnetic transition temperatures.",

keywords = "Iron-nickel-cobalt-gallium alloy, Martensitic transition, Phase diagram, Shape memory ferromagnetic alloy",

author = "Katsunari Oikawa and Yousuke Imano and Chernenko, {Volodymyr A.} and Fenghua Luo and Toshihiro Omori and Yuji Sutou and Ryosuke Kainuma and Takeshi Kanomata and Kiyohito Ishida",

year = "2005",

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doi = "10.2320/matertrans.46.734",

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T1 - Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys

AU - Oikawa, Katsunari

AU - Imano, Yousuke

AU - Chernenko, Volodymyr A.

AU - Luo, Fenghua

AU - Omori, Toshihiro

AU - Sutou, Yuji

AU - Kainuma, Ryosuke

AU - Kanomata, Takeshi

AU - Ishida, Kiyohito

PY - 2005/3

Y1 - 2005/3

N2 - The effect of Co addition on the martensitic transition and magnetic properties of the Ni-Fe-Ga β alloys is investigated. The values of both the Curie temperature T c and martensitic transition starting temperature M s increase, while the saturation magnetization I s decreases with increasing Co content in the series of Ni 51Fe 22-XCo XGa 27 alloys. On the other hand, the values of both T c and I s increase and M s decrease with increasing Co content in the series of Ni 54-XFe 19Co XGa 27 alloys. T c and I s show a strong dependence on the average magnetic valence number Zm. Consequently, Co is an effective element to control both the martensitic and the magnetic transition temperatures.

AB - The effect of Co addition on the martensitic transition and magnetic properties of the Ni-Fe-Ga β alloys is investigated. The values of both the Curie temperature T c and martensitic transition starting temperature M s increase, while the saturation magnetization I s decreases with increasing Co content in the series of Ni 51Fe 22-XCo XGa 27 alloys. On the other hand, the values of both T c and I s increase and M s decrease with increasing Co content in the series of Ni 54-XFe 19Co XGa 27 alloys. T c and I s show a strong dependence on the average magnetic valence number Zm. Consequently, Co is an effective element to control both the martensitic and the magnetic transition temperatures.

KW - Iron-nickel-cobalt-gallium alloy

KW - Martensitic transition

KW - Phase diagram

KW - Shape memory ferromagnetic alloy

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Influence of Co addition on martensitic and magnetic transitions in Ni-Fe-Ga β based shape memory alloys

Abstract

Keywords

ASJC Scopus subject areas

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