The anisotrophy of coercive force in cold-rolled goss-texture electrical sheets

The value of coercive force constitutes an important materals constant, and an unfavorable effect of Hcchanges should be taken into consideration in the course of exploitation of electrical machines and equipment. The values of coercive force of anisotropic and isotropic electrical sheets have been presented. It has been found that the crystalline structure and the degree of texture bring forth the anisotropy of coercive force, i.e., the changes of Hcvalue depending on the magnetization directions. The applied measuring method gives results which are exact enough (error δmax< 3 percent) and reproducible. The minimal value of coercive force has been found to be in direction [001] and the maximal value in direction [110], and not in direction [111]. The anisotropy for the directions is correlated with the anisotropy of mechanical properties (the number of bends) and the magnetostriction.