Quantification of magnetic flux density in non-oriented electrical steel sheets by analysis of texture components

Abstract In order to quantify the impact of crystallographic texture on the variation of magnetic flux density B ( α ) in non-oriented electrical steel, two sheet samples with identical chemical composition were produced in a way to achieve different textures. A correlation between the values of B ( α ) and an anisotropy parameter A ( h → ) obtained from the sheet textures was established. In turn, this correlation was used to compute in-plane variations of B ( α ) for various single crystal orientations as well as various characteristic polycrystal texture components. Since non-oriented electrical steel is mainly used in applications with changing directions of magnetization the planar magnetic flux density B ¯ , which averages the in-plane variation of B ( α ), is an important measure of the overall magnetizing ability. A high planar magnetic flux density B ¯ is achieved by increasing texture components with their {0 0 1} poles close to the sheet normal direction, perpendicular to the sheet plane, while suppressing texture components whose {0 0 1} poles deviate from the normal direction by more than 30°.