Inhomogeneity of magnetic properties of an anisotropic electrical steel and specific features of dislocation structures

Differences in the dislocation structures formed owing to the development of creep during high-temperature annealing and annealing for correcting coil curvature are shown to be one of the reasons for the inhomogeneity of magnetic properties of industrial anisotropic electrical steels. A relationship between the character of the dislocation structure, structure of magnetic domains, and magnetic losses is established. The dislocation cellular structure formed at grain boundaries exerts the greatest effect on the magnetic losses.Translated from Defektoskopiya, Vol. 40, No. 11, 2004, pp. 69–78.Original Russian Text Copyright © 2004 by Sokolov, Dragoshanskii, Matveeva, Tsyrlin, Mineev, Puzhevich.