Texture and magnetic property evolution of non-oriented Fe-Si steel due to mechanical cutting

摘要: Abstract Microstructures and textures as well magnetic properties of a non-oriented Fe–Si steel with thickness 0.5 mm medium silicon content after mechanical cutting were investigated. The results from electron backscatter diffraction (EBSD) analysis indicated that in the cut edge zone, resulted significant increase low-angle boundaries (LAGBs, 2°≤ θ ≤15°) dislocation densities both upper surface (in shear zone) lower fracture zone). Mechanical also led to visible change textures, such as, intensity decrease λ fiber ( ∥normal direction [ND]) γ ∥ND) components Goss texture ({110} texture) surface. Microstructure changes seem be more obvious than these single sheet testing showed induced an evident deterioration clear hysteresis loop steel, variations became increasing length per mass 0.86 m/kg 2.57 m/kg. largest increment iron loss reached 18.45% 21.76% when flux density was at 1.0 T 1.5 T, respectively. possible main reasons for loops discussed terms factor TF or residual stress.