The relation between the magnetostriction and the hysteresis losses in the non-oriented electrical steels

In real electromagnetic devices the non-oriented electrical steel is often subjected to various mechanical stresses.\ud These stresses affect the magnetic properties of the steel, such as the hysteresis losses and the magnetostriction. In this\ud paper, the mechanisms responsible for the variation of the magnetic properties are discussed. A relation between the\ud variation of the hysteresis losses and the magnetostriction under the applied mechanical stress is established. An\ud experimental confirmation is proposed

In-situ observation of texture changes during phase transformations in ultra-low-carbon steel

Texture changes during the alpha(bcc)-gamma(fcc) phase transformation in ultra-low-carbon (ULC) steel were investigated in situ by neutron diffraction, making use of a vacuum furnace. The initial texture is a typical bee rolling texture. Upon heating above 500 degrees C, it recrystallizes, and above 900 degrees C, it transforms into an fee texture with (111) fee pole figures resembling (110) bee and (110) fee resembling (111) bee. Upon cooling, the reverse transformation produces a texture that is close to the initial one, documenting a texture memory. Modeling the texture changes with the Kurdjumov-Sachs (KS), Nishiyama-Wassermann (NW), and Bain relationships reproduces the correct texture patterns but considerably weaker texture strengths, indicating that in the experimental case, variant selection occurs during both the forward and reverse transformations