Tensile properties of magnetostrictive iron–gallium alloys

Kellogg, Rick A.; Russell, Alan M.; Lograsso, Thomas A.; Flatau, Alison B.; Clark, A. E.; Wun‐Fogle, M.

doi:10.1016/j.actamat.2004.07.007

Cited by 198 publications

(85 citation statements)

References 12 publications

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“…16 The elastic response of FeGa is also anisotropic, increasing in the direction of higher electron density distribution, which is maximized in single crystals and strongly textured polycrystalline forms. 17 The alloy used here is stress-annealed, which improves the magnetostrictive strain through a build-up of internal stress, as compared to the FeGa without pre-stress treatment. The FeGa used in this experiment is additionally strongly textured along the h110i crystallographic direction, which coincides with the longitudinal dimension of the structure (Fig.…”

Section: Resultsmentioning

confidence: 99%

Tunable fringe magnetic fields induced by converse magnetoelectric coupling in a FeGa/PMN-PT multiferroic heterostructure

Fitchorov¹,

Chen²,

Hu³

et al. 2011

Journal of Applied Physics

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Ion doping effects in multiferroic MnWO4 J. Appl. Phys. 111, 083906 (2012) Origin of ferromagnetism and oxygen-vacancy ordering induced cross-controlled magnetoelectric effects at room temperature J. Appl. Phys. 111, 073904 (2012) Synthesis and signature of M-E coupling in novel self-assembled CaCu3Ti4O12-NiFe2O4 nanocomposite structure J. Appl. Phys. 111, 074302 (2012) Quantum levitation of a thin magnetodielectric plate on a metallic plate using the repulsive Casimir force

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Section: Resultsmentioning

confidence: 99%

Tunable fringe magnetic fields induced by converse magnetoelectric coupling in a FeGa/PMN-PT multiferroic heterostructure

Fitchorov¹,

Chen²,

Hu³

et al. 2011

Journal of Applied Physics

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“…The answer to this question comes when we begin to examine and understand Fe-Ga alloy's mechanical properties. Kellogg et al 5) investigated the static mechanical property values for Fe 83 Ga 17 alloy. They found that the [100] oriented single crystal had a tensile strength of 515 MPa and an elongation value >2%.…”

Section: Introductionmentioning

confidence: 99%

Effect of B and Cr on Mechanical Properties and Magnetostriction of Iron-Gallium Alloy

Gao

Zhu

et al. 2009

Mater. Trans.

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Effects of B and Cr additions on magnetostriction and the mechanical properties of polycrystalline Fe 83 Ga 17 alloy were investigated. Small addition of B increased magnetostriction of Fe 83 Ga 17 alloy slightly, and improved the room temperature ductility and tensile strength significantly. The elongation and tensile strength of the (Fe 83 Ga 17 ) 99 B 1 alloy increased to 3.56% and 548 MPa compared with that of Fe 83 Ga 17 alloy respectively. The Cr addition was shown to improve the room temperature mechanical properties of Fe 83 Ga 17 alloy beneficially. The maximum magnetostriction of (Fe 83 Ga 17 ) 98 Cr 2 alloy was 70 Â 10 À6 . The influences of B and Cr additions on the fracture mode of Fe 83 Ga 17 alloy were also studied in this paper.

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“…They are also stronger than most active materials with a tensile strength exceeding 500 MPa. 12,13 Subsequent to initial room temperature observations, extensive measurements of k c,2 from cryogenic to room temperature were made on binary Fe alloys where the solutes were elements with empty and full d-shells in Groups III and IV of the Periodic Table such as Al, 14 Ga, 9,15 and Ge. 16 Many measurements on Fe-Ga alloys with small amounts of Ga replaced by 3 d and 4 d transition elements were also reported.…”

Section: Introductionmentioning

confidence: 99%

Tetragonal magnetostriction and magnetoelastic coupling in Fe-Al, Fe-Ga, Fe-Ge, Fe-Si, Fe-Ga-Al, and Fe-Ga-Ge alloys

Restorff

Wun‐Fogle

Hathaway

et al. 2012

Journal of Applied Physics

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114

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This paper presents a comparative study on the tetragonal magnetostriction constant,λ γ,2 , [ = (3/2)λ 100 ] and magnetoelastic coupling, b 1 , of binary Fe 100-xZ x (0 < x < 35, Z = Al, Ga, Ge, and Si) and ternary Fe-Ga-Al and Fe-Ga-Ge alloys. The quantities are corrected for magnetostrains due to sample geometry (the magnetostrictive form effect). Recently published elastic constant data along with magnetization measurements at both room temperature and 77 K make these corrections possible. The form effect correction lowers the magnetostriction by ∼10 ppm for high-modulus alloys and by as much as 30 ppm for low-modulus alloys. The elastic constants are also used to determine the values of the magnetoelastic coupling constant, b 1 . With the new magnetostriction data on the Fe-Al-Ga alloy, it is possible to show how the double peak magnetostriction feature of the binary Fe-Ga alloy flows into the single peak binary Fe-Al alloy. The corrected magnetostriction and magnetoelastic coupling data for the various alloys are also compared using the electron-per-atom ratio, e/a, as the common variable. The Hume-Rothery rules link thee/a ratio to the regions of phase stability, which appear to be intimately related to the magnetostriction versus the solute concentration curve in these alloys. Using e/a as the abscissa tends to align the peaks in the magnetostriction and magnetoelastic coupling for the Fe-Ga, Fe-Ge, Fe-Al, Fe-Ga-Al, and Fe-Ga-Ge alloys, but not for the Fe-Si alloys for which the larger atomic size difference may play a greater role in phase stabilization. Corrections for the form effect are also presented for the rhombohedral magnetostriction,λ ɛ,2 , and the magnetoelastic coupling, b 2 , of Fe 100-x Ga x (0 < x < 35) alloys.Keywords aluminium alloys, elastic constants, elastic moduli, gallium alloys, germanium alloys, iron alloys, magnetisation, magnetoelastic effects, magnetostriction, silicon alloys Disciplines Condensed Matter Physics | Metallurgy CommentsThe following article is from Journal of Applied Physics 111 (2012) This paper presents a comparative study on the tetragonal magnetostriction constant, k c,2 , [ ¼ (3/2) k 100 ] and magnetoelastic coupling, b 1 , of binary Fe 100-x Z x (0 < x < 35, Z ¼ Al, Ga, Ge, and Si) and ternary Fe-Ga-Al and Fe-Ga-Ge alloys. The quantities are corrected for magnetostrains due to sample geometry (the magnetostrictive form effect). Recently published elastic constant data along with magnetization measurements at both room temperature and 77 K make these corrections possible. The form effect correction lowers the magnetostriction by $10 ppm for high-modulus alloys and by as much as 30 ppm for low-modulus alloys. The elastic constants are also used to determine the values of the magnetoelastic coupling constant, b 1 . With the new magnetostriction data on the Fe-Al-Ga alloy, it is possible to show how the double peak magnetostriction feature of the binary Fe-Ga alloy flows into the single peak binary Fe-Al alloy. The corrected magnetostriction and magnetoel...

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Tensile properties of magnetostrictive iron–gallium alloys

Cited by 198 publications

References 12 publications

Tunable fringe magnetic fields induced by converse magnetoelectric coupling in a FeGa/PMN-PT multiferroic heterostructure

Tunable fringe magnetic fields induced by converse magnetoelectric coupling in a FeGa/PMN-PT multiferroic heterostructure

Effect of B and Cr on Mechanical Properties and Magnetostriction of Iron-Gallium Alloy

Tetragonal magnetostriction and magnetoelastic coupling in Fe-Al, Fe-Ga, Fe-Ge, Fe-Si, Fe-Ga-Al, and Fe-Ga-Ge alloys

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