Study of damping capacity of Fe–5.4Al–0.05Ti alloy

Emdadi, Aliakbar; Nartey, Martinson Addo; Xu, Yonggang; Golovin, I.S.

doi:10.1016/j.jallcom.2015.09.031

Cited by 27 publications

(6 citation statements)

References 35 publications

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“…A decrease in the damping capacity due to macro-and microeddy losses is also observed with strong grain refinement by methods of severe plastic deformation [33]. On the contrary, the grain size has little effect on the mobility of DWs and does not change the hysteresis losses [34]. During heat treatment of materials below a certain critical temperature, a decrease in local internal stresses and structural defects leads to Fig.…”

Section: Dependence Of MMD On External Parameters and Materials Chara...mentioning

confidence: 96%

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Kaminskii¹,

Kalganov²

2022

Rev. Adv. Mater. Technol.

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This review is devoted to the analysis of three components of magneto-mechanical damping (MMD), namely, macroeddy, microeddy, and hysteresis components, in ferromagnetic alloys. Theoretical models and equations for all three components of the MMD are discussed. The application of the classical theory of micro- and macroeddy MMD to determine the influence of the frequency of cyclic external mechanical load on the damping ability of the material is shown. A discussion on the role of various factors, such as temperature, strain amplitude, vibration frequency, and external magnetic field, on the magnitude of the MMD is provided.

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Section: Dependence Of MMD On External Parameters and Materials Chara...mentioning

confidence: 96%

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Kaminskii¹,

Kalganov²

2022

Rev. Adv. Mater. Technol.

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“…It is well known that annealing eliminates crystal defects, internal stresses, and grain boundaries which decrease the mobility of domain walls by conjugating the magnetic domain wall motions to a vibration stress which causes an increase in magnetic loss. [37][38][39] 4.5.1 Eddy current loss. The contribution of eddy current loss to magnetic loss is expressed by the following equation: 21…”

Section: Magnetism Lossmentioning

confidence: 99%

“…In fact, the electron transfer in the MWCNT network can be simplified as a series of circuits. 37 Electron-rich MWCNT surfaces, and the interfaces of MWCNT-MWCNT, MWCNT-CuFe 2 O 4 , and CuFe 2 O 4 -MWCNT lead to the accumulation of charge and so enhance the polarization relaxation (Maxwell–Wagner polarization). Functional groups and defects in the CuFe 2 O 4 NPs and MWCNT act as polarization centers and cause asymmetric charge distribution and then bipolar polarization.…”

Section: Microwave Absorptionmentioning

confidence: 99%

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Superior microwave absorption ability of CuFe₂O₄/MWCNT at whole Ku-band and half X-band

poor

Hekmatara

2023

Phys. Chem. Chem. Phys.

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“…Anelastic temperature- and frequency-dependent effects in Fe–Al alloys were reviewed in [ 66 ] and several later publications [ 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 ]. Fe–Al alloys have good damping properties due to magneto-mechanical decay of mechanical vibrations in the Hz range of loading.…”

Section: Introductionmentioning

confidence: 99%

Anelastic Effects in Fe–Ga and Fe–Ga-Based Alloys: A Review

Golovin

2023

Materials

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Fe–Ga alloys (GalFeNOLs) are the focus of attention due to their enhanced magneto-elastic properties, namely, magnetostriction in low saturation magnetic fields. In the last several years, special attention has been paid to the anelastic properties of these alloys. In this review, we collected and analyzed the frequency-, amplitude-, and temperature-dependent anelasticity in Fe–Ga and Fe–Ga-based alloys in the Hertz range of forced and free-decay vibrations. Special attention is paid to anelasticity caused by phase transitions: for this purpose, in situ neutron diffraction tests with the same heating or cooling rates were carried out in parallel with temperature dependencies measurements to control ctructure and phase transitions. The main part of this review is devoted to anelastic effects in binary Fe–Ga alloys, but we also consider ternary alloys of the systems Fe–Ga–Al and Fe–Ga–RE (RE—Rare Earth elements) to discuss similarities and differences between anelastic properties in Fe–Ga and Fe–Al alloys and effect of RE elements. We report and discuss several thermally activated effects, including Zener- and Snoek-type relaxation, several transient anelastic phenomena caused by phase transitions (D03 ↔ A2, D03 → L12, L12 ↔ D019, D019 ↔ B2, Fe13Ga9 → L12+Fe6Ga5 phases), and their influence on the above-mentioned thermally activated effects. We also report amplitude-dependent damping caused by dislocations and magnetic domain walls and try to understand the paradox between the Smith–Birchak model predicting higher damping capacity for materials with higher saturation magnetostriction and existing experimental results. The main attention in this review is paid to alloys with 17–20 and 25–30%Ga as the alloys with the best functional (magnetostriction) properties. Nevertheless, we provide information on a broader range of alloys from 6 to 45%Ga. Due to the limited space, we do not discuss other mechanical and physical properties in depth but focus on anelasticity. A short introduction to the theory of anelasticity precedes the main part of this review of anelastic effects in Fe–Ga and related alloys and unsolved issues are collected in summary.

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Study of damping capacity of Fe–5.4Al–0.05Ti alloy

Cited by 27 publications

References 35 publications

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Superior microwave absorption ability of CuFe₂O₄/MWCNT at whole Ku-band and half X-band

Anelastic Effects in Fe–Ga and Fe–Ga-Based Alloys: A Review

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Study of damping capacity of Fe–5.4Al–0.05Ti alloy

Cited by 27 publications

References 35 publications

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Modeling of Magneto-Mechanical Damping in Ferromagnetic Alloys: a Brief Review

Superior microwave absorption ability of CuFe2O4/MWCNT at whole Ku-band and half X-band

Anelastic Effects in Fe–Ga and Fe–Ga-Based Alloys: A Review

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Superior microwave absorption ability of CuFe₂O₄/MWCNT at whole Ku-band and half X-band