Influence of Magnetic Anisotropy on Hysteresis Loss of Non-oriented Electrical Steel Sheet

To reveal the influence of magnetic anisotropy on hysteresis loss of electrical steel sheet, hysteresis loss of non-oriented electrical steel sheet with various Si and Al contents and same grain diameter, 100 gm, was analyzed by the hysteresis loss model we advanced in other times. In the result, the influence of magnetic anisotropy was be able to evaluated in isolation from the influence of inner stress or texture etc. on hysteresis loss. Hysteresis loss was proportional to magnetic anisotropy constant. This reason was inferred that as the magnetic anisotropy constant decreases, the energy of magnetic wall decreases, then the magnetic wall was difficult to be pinned by precipitates or grain boundaries.