Improvement of magnetic properties of an Fe-6.5 wt. % Si alloy by directional recrystallization

Zhang, Z. W.; Chen, G.; Bei, H.; Ye, F.; Chen, G. L.; Liu, C. T.
November 2008
Applied Physics Letters;11/10/2008, Vol. 93 Issue 19, p191908
Academic Journal
We report that magnetic properties of an Fe-6.5 wt. % Si alloy can be improved through texture control by using directional recrystallization. Columnar grain structures with column sizes of ∼0.38×1.2 mm2 were developed during directional recrystallization. It was found that there are low energy boundaries between columns and main textures of the specimen were {110}<111> and {111}<110>. As a result, the coercivity of a directionally recrystallized specimen is reduced by a factor of 5 when measured along 60° away from the growth direction, as compared to a specimen consisting of ∼77 μm equiaxed grains.


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