Effect of composition on the structural relaxation of amorphous iron-based alloys

Structure and Magnetic Properties of Fe-Cu-Nb-Si-B with Various Niobium Concentration

“…The increase in Nb concentration is reflected in the monotonous growth of the relative electrical resistivity with increasing temperature, Fig. 7, which indicates the passage of the process of structural relaxation within the amorphous state [6]. We note here: the resistance of the annealed samples is much lower than in the initial state.…”

Studying the Temperature Dependence of the Intensity of Magnetization of Rapidly Quenched Fe–Cu–Nb–Si–B Alloys

“…~ 600 K. The emergence of spontaneous magnetization upon a rise in temperature (for, e.g., samples Fe 73 Cu 1.5 Nb 3 Si 16.5 B 6 and Fe 74 Cu 1 Nb 3 Si 16 B 6 (Fig. 1)) was associated with the start of a multiple-stage transition to the nanocrystalline state [7].…”

“…Magnetization was studied in the temperature range of 4 to 975 K (up to temperatures above the Curie temperature of the above rapidly quenched alloys [6,7]) using an MPMS 7XL Quantum Design SQUID magnetometer and a vibration magnetometer. The structure of the faces was studied using a Carl Zeiss Ultra 55+ scanning electron microscope.…”

Multiscale Magnetic Anisotropy in Amorphous Ferromagnetic Ribbon: An Example of FeCuNdSiB Alloy

“…In this paper, the complex study of magnetic anisotropy of amorphous ferromagnetic ribbons is curried out on soft magnetic amorphous FeCuNbSiB alloys. The rapidly quenched FeCuNbSiB ribbons obtained by the melt-spinning technique are amorphous with a certain amount of the crystalline phase in some samples, depending on the elemental composition, fabrication conditions, and further treatment (annealing) [6,7,11]. Selected alloys have several advantages: excellent magnetic properties, high strength, and corrosion resistance.…”