Grain Oriented Electrical Steel Sheet And Manufacturing Method Therefor

Abstract: In a grain-oriented electrical steel sheet according to one aspect of the present invention, on the surface of the grain-oriented electrical steel sheet, the tensile stress presence ratio is 50% or more in a first region that is a region where the ß angle is 1° or less, the tensile stress presence ratio being the ratio, among the total extension of magnetic domain control treatment lines that form an angle of 0° to 45° with respect to the transverse direction and are arranged side by side in the rolling direction, of portions which are present non-monoperiodically and in which tensile stress is present in the sheet thickness direction and the ß angle being the angle of deviation from the Goss orientation of crystal grains around the transverse direction axis, the tensile stress presence ratio is less than 50% in a second region that is a region where the ß angle is more than 2°, and the maximum value of the tensile stress is 40 MPa or more.

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