The evolution of structure and magnetoimpedance characteristics of amorphous Co69Fe4Cr4Si12B11 microwires under heat treatment

Kozlov, Ilya; Elmanov, G.N.; Prikhod’ko, K. E.; Kutuzov, L. V.; Тарасов, B. A.; Mikhalchik, V V; Светогоров, Р. Д.; Mashera, V.S.; Gorelikov, E. S.; Гудошников, С.А.

doi:10.1016/j.jmmm.2019.165681

Cited by 10 publications

(2 citation statements)

References 30 publications

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“…To check the dependences obtained within our model, we performed studies of glasscoated Co-rich microwires manufactured by the Taylor-Ulitovsky method. Segments of microwires with the composition Co 69 Fe 4 Cr 4 Si 12 B 11 , an outer radius R = 14.25 µm, a metal core radius r 0 = 6.75 µm, and a length of L = 100 mm were used as samples [29][30][31]. The ends of the microwire samples were pre-stripped from the glass shell to ensure electrical contact with a special holder.…”

Section: Methodsmentioning

confidence: 99%

Angle Magnetization Rotation Method for Characterizing Co-Rich Amorphous Ferromagnetic Microwires

et al. 2021

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A low-frequency model of the magnetization reversal of a microwire is developed for those cases when the microwire magnetization response can go beyond the linear approximation. The analysis of the influence of external magnetic fields on the process of magnetization reversal of the microwire, including the hysteresis mode, was performed. The characteristic dependences of the amplitude of the electromotive force, U2f, arising in the pick-up coil wound around the microwire are obtained. It was established that, in the region of relatively small-acting circular and longitudinal magnetic fields, the U2f signal could have a region with the opposite sign. An extended small-angle magnetization rotation method was used to verify the proposed model and test glass-coated, amorphous, Co-rich microwires. During the experiments, the amplitude of the second harmonic, U2f, arising in the pick-up coil when an alternating electric current with the frequency f flows through the microwire, was measured as a function of the applied longitudinal magnetic field at various mechanical tensile stresses. The effective anisotropy field, the magnetostriction constant, and the residual quenching stress of the investigated microwires were determined by comparing the theoretical and experimental data.

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Section: Methodsmentioning

confidence: 99%

Angle Magnetization Rotation Method for Characterizing Co-Rich Amorphous Ferromagnetic Microwires

et al. 2021

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“…Amorphous alloys are highly disordered and an unstable atom structure, and can change to a stable state with low energy during heating [81][82][83]. Therefore, the heat treatment process has a certain effect on the microstructure and characteristics of amorphous alloy coatings.…”

Section: Heat Treatment Processmentioning

confidence: 99%

Current Research Status on Cold Sprayed Amorphous Alloy Coatings: A Review

et al. 2021

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Compared with traditional crystalline materials, amorphous alloys have excellent corrosion and wear resistance and high elastic modulus, due to their unique short-range ordered and long-range disordered atomic arrangement as well as absence of defects, such as grain boundaries and dislocations. Owing to the limitation of the bulk size of amorphous alloys as structural materials, the application as functional coatings can widely extend their use in various engineering fields. This review first briefly introduces the problems involved during high temperature preparation processes of amorphous coatings, including laser cladding and thermal spraying. Cold spray (CS) is characterized by a low-temperature solid-state deposition, and thus the oxidation and crystallization related with a high temperature environment can be avoided during the formation of coatings. Therefore, CS has unique advantages in the preparation of fully amorphous alloy coatings. The research status of Fe-, Al-, Ni-, and Zr-based amorphous alloy coatings and amorphous composite coatings are reviewed. The influence of CS process parameters, and powders and substrate conditions on the microstructure, hardness, as well as wear and corrosion resistance of amorphous coatings is analyzed. Meanwhile, the deposition mechanism of amorphous alloy coatings is discussed by simulation and experiment. Finally, the key issues involved in the preparation of amorphous alloy coatings via CS technology are summarized, and the future development is also being prospected.

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Nature of anomalous electrical resistance in Co73-Fe4Cr Si12B11 amorphous microwires

Elmanov,

Kozlov,

Kutuzov

et al. 2024

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The evolution of structure and magnetoimpedance characteristics of amorphous Co69Fe4Cr4Si12B11 microwires under heat treatment

Cited by 10 publications

References 30 publications

Angle Magnetization Rotation Method for Characterizing Co-Rich Amorphous Ferromagnetic Microwires

Angle Magnetization Rotation Method for Characterizing Co-Rich Amorphous Ferromagnetic Microwires

Current Research Status on Cold Sprayed Amorphous Alloy Coatings: A Review

Nature of anomalous electrical resistance in Co73-Fe4Cr Si12B11 amorphous microwires

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