Effect of Magnetic Field Annealing on Magnetic Properties of Iron–Gallium Alloys

• Published in: Physics of the solid state Vol. 62; no. 10; pp. 1746 - 1754
• Main Authors: Lukshina, V. A., Shishkin, D. A., Kuznetsov, A. R., Ershov, N. V., Gornostyrev, Yu. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-10-2020; Springer; Springer Nature B.V
• Subjects: Alloys; Analysis; Anisotropy; Annealing; Coercivity; Ferrous alloys; Gallium base alloys; Hysteresis loops; Iron; Magnetic anisotropy; Magnetic fields; Magnetic hysteresis; Magnetic properties; Magnetism; Metals; Officials and employees; Physics; Physics and Astronomy; Solid State Physics; Specialty metals industry; thermomagnetic treatment; iron–gallium alloys; magnetic properties
• ISSN: 1063-7834; 1090-6460
• DOI: 10.1134/S1063783420100182

The concentration dependence of magnetic properties of iron alloys with 3–25% of gallium is studied. It was shown that the saturation induction monotonically decreases with increasing gallium content, while the coercivity exhibits a step increase with a step from 85 to 135 A/m between 12 and 15 at % Ga. The effect of magnetic field annealing (MFA) on the behavior of the residual induction and coercive force in alloy samples containing from 3 to 18 at % Ga is studied. As a result of MFA, magnetic anisotropy is induced in the alloy: magnetic hysteresis loops become narrower, the residual induction increases, and the coercivity decreases. The MFA efficiency reaches a maximum at a Ga content of 15–18 at %. The features of the structure state of iron–gallium alloys and their role in the formation of magnetic properties during annealing in a dc magnetic field are discussed.