Strong {411} Recrystallization Texture in Fe-Si-Ni-Al-Mn High-Strength Non-Oriented Electrical Steel

This study is focused on, elucidating texture evolution during the different process stages of a new Fe-Si-Ni-Al-Mn high-strength non-oriented electrical steel and the formation of the {411} grains whose formation reduces the gamma texture content and improves the magnetic properties. The strongest texture component of the new of high-strength non-oriented electrical steel type is {111} in the grain nucleation stage. Nevertheless, the {411} orientation is the main orientation component in the grain growth stage. The {411} grains nucleate at the gamma oriented and {001}-{223} grains boundaries or intracrystalline shear bands of gamma-fiber grains. There is a competitive relationship between the nucleation of {411} grains, Cube, Goss, and gamma-fiber grains at the beginning of recrystallization. The combined effect of the size advantage of {411} grains, the influence of orientation pinning on other major oriented grains, and the high mobility of {411} grain boundaries generate a significant {411} recrystallized grain after the annealing process. The key mechanism of {411} texture formation is attributed to the selective growth theory in Fe-Si-Ni-Al-Mn high-strength non-oriented electrical steel.