Measurement and Modelling Magnetic Anisotropy due to Crystallographic Texture in Interstitial Free (IF) Steels

A set of IF steel specimens, at different states of recrystallisation (commercially cold rolled and annealed to give partially recrystallised and fully recrystallised microstructures) and accordingly different texture components have been used to investigate the measurement and prediction of magnetic anisotropy. A finite element microstructure model that considers crystallographic texture has been used for the prediction of magnetic anisotropy to compare to the measured values, with comparable anisotropy being observed. The results show that the proposed deployable non-destructive approach (U-shaped electromagnetic sensor that can be placed onto a sheet sample) is promising for the quick evaluation of the magnetic anisotropy in IF steels.