Evolution of Texture and Related Magnetic Properties in Fe-3%Si Steel during Single-step Annealing

概要

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Cold rolled Fe–3%Si steel sheets underwent a single-step annealing process, which included a decarburizing treatment. Crystallographic texture and magnetic properties were investigated after cold rolling and annealing for various times. Most of the Goss oriented grains were situated inside the shear bands of {111}‹112› oriented grains in the cold rolled samples. In the annealed samples, island grains were observed in the abnormally growing grains. The island grains had either low (<15°) or high (>45°) misorientations. The abnormally growing grains were surrounded by 25°–45° misorientation boundaries. The effects of crystallographic texture on magnetic properties were evaluated using a texture parameter, the ratio of the sum of Cube and Goss texture components fractions to γ fiber texture components fraction. The results show that iron losses decrease linearly with increasing texture parameter.
社団法人日本鉄鋼協会の論文
2008-12-15