Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides

Toshiya Takahashi; Teiko Okazaki; Yasubumi Furuya

Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides

Toshiya Takahashi, Teiko Okazaki, Yasubumi Furuya

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

(Feo₈₀Ga_0.15Al_0.05)₉₉X _0.5C_0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo₈₀Ga _0.15Al_0.05)₉₉Zr_0.5C_0.5 alloys showed maximum magnetostriction λ_max=134ppm and its tensile strength σ_B=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.

Original language	English
Title of host publication	Materials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III
Pages	175-180
Number of pages	6
Publication status	Published - 2009 Nov 20
Externally published	Yes
Event	Materials and Devices for Smart Systems III - 2008 MRS Fall Meeting - Boston, MA, United States Duration: 2008 Dec 1 → 2008 Dec 4

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1129
ISSN (Print)	0272-9172

Other

Other	Materials and Devices for Smart Systems III - 2008 MRS Fall Meeting
Country	United States
City	Boston, MA
Period	08/12/1 → 08/12/4

ASJC Scopus subject areas

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

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Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides. / Takahashi, Toshiya; Okazaki, Teiko; Furuya, Yasubumi.

Materials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III. 2009. p. 175-180 (Materials Research Society Symposium Proceedings; Vol. 1129).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Takahashi, T, Okazaki, T & Furuya, Y 2009, Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides. in Materials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III. Materials Research Society Symposium Proceedings, vol. 1129, pp. 175-180, Materials and Devices for Smart Systems III - 2008 MRS Fall Meeting, Boston, MA, United States, 08/12/1.

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title = "Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides",

abstract = "(Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.",

author = "Toshiya Takahashi and Teiko Okazaki and Yasubumi Furuya",

year = "2009",

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series = "Materials Research Society Symposium Proceedings",

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booktitle = "Materials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III",

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AU - Takahashi, Toshiya

AU - Okazaki, Teiko

AU - Furuya, Yasubumi

PY - 2009/11/20

Y1 - 2009/11/20

N2 - (Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.

AB - (Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.

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Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides

Abstract

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ASJC Scopus subject areas

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