Corpus ID: 236882821

Influence of grain morphology and orientation on saturation magnetostriction of polycrystalline Terfenol-D

@inproceedings{Nieves2021InfluenceOG,
  title={Influence of grain morphology and orientation on saturation magnetostriction of polycrystalline Terfenol-D},
  author={P. Nieves and D. Legut},
  year={2021}
}
In this work we computationally study the effect of microstructure on saturation magnetostriction of Terfenol-D (Tb0.27Dy0.73Fe2) by means of Finite Element Method. The model is based on the equilibrium magnetoelastic strain tensor at magnetic saturation, and shows that the crystal orientation might play a more significant role on saturation magnetostriction than the morphology of the grains. We also calculate the dependence of saturation magnetostriction on the dispersion angle of the… Expand

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Effect of texture on the magnetostriction of grain-aligned composite Terfenol-D
Grain-aligned composite Terfenol-D was fabricated via unidirectional solidification, followed by the infiltration of epoxy. The fraction of the RFe2 phase in composite Terfenol-D depends on theExpand
Texture evolution of Terfenol-D by solidification in a magnetic field
The orientation of crystals of the giant magnetostrictive compound Terfenol-D solidified in a static magnetic field has been investigated. When the melt with size ϕ16×18mm2 solidifies slowly in aExpand
Permeability, magnetomechanical coupling and magnetostriction in grain-oriented rare earth-iron alloys
Grain‐oriented samples of highly magnetostrictive rare earth–iron compounds have been prepared. These samples possess lower inhomogeneous strains than found in the random polycrystalline RFe2Expand
Dynamic Characteristics of Tb-Dy-Fe Polycrystals with <110> Axial Alignment
The magnetostriction and dynamic characteristics of Tb0.27Dy0.73Fe2 polycrystals with <110> axial alignment were investigated by standard strain gauge, two coil induction and lock-in amplifierExpand
Preparation of Terfenol-D with precise 〈110〉 orientation and observation of the oriented growth crystal morphology
Abstract In a super high temperature gradient directional solidification equipment developed by the authors, φ7 mm rare earth giant magnetostrictive rods with precise 〈110〉 orientations wereExpand
Study on the melt-textured technique in a magnetic field for giant magnetostrictive materials R–Fe alloy
Abstract The melt-textured technique in a magnetic field for giant magnetostrictive materials TbFe x and Tb 0.3 Dy 0.7 Fe x (1.9 ⩽  x  ⩽ 2) alloy was investigated. The cooling rate, melt temperature,Expand
Magnetoelastic stresses in epitaxial (110) Terfenol-D thin films
Abstract The magnetic and magnetoelastic (MEL) behaviour of single-crystal (1 1 0) Terfenol-D thin films, 600 and 1000 A thick, have been investigated by performing magnetization and MEL stressExpand
Effects of the crystal growth velocity on the crystal orientations and microstructures in an optical image zone melting furnace
Abstract Effects of the crystal growth velocity on the crystal orientation and the microstructures of the Tb 0.27 Dy 0.73 Fe 1.9 compound have been investigated in an optical image zone meltingExpand
A nonlinear constitutive model for Terfenol-D rods
To overcome some deficiencies in previous constitutive models of giant magnetostrictive materials, a nonlinear and coupled model is suggested to describe the constitutive relations for a Terfenol-DExpand
Static properties of crystallographically aligned Terfenol-D/polymer composites
Crystallographically aligned [112] magnetostrictive particle (CAMP) composites were characterized quasistatically. Three volume fraction (vf) composites (26%, 37%, and 49%) were manufactured andExpand
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