Influence of mechanical and thermal actions on domain structure and magnetostriction of iron-based soft magnetic alloys

Certain mechanical and thermal actions are considered as sources of stresses in ferromagnetic materials, which generate 90-degree magnetic domains, thus increasing saturation magnetostriction. It is established that the value of internal residual stresses in crystallites (grains) depends significantly on the difference between the thermal expansion coefficients of phases generated upon thermal processing of ferromagnetic materials and the surrounding matrix.