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用x-射线求织构系数方法研究了含MnS+AIN的3%si-Fe合金的初次再结晶织构中各晶面的织构系数N_(hkl).冷轧压延率通过改变初次再结晶织构组分的数量对二次再结晶行为影响很大,所得结果能很好地说明高温退火后的磁性变化规律.认为初次再结晶基体中很强的 {111}<112>和位向准确的{110}<001>的弱组分是获得完善的戈斯(Goss) 织构的重要条件.实验结果还指出,同最佳磁性相对应的压延率范围为82～87%,压延率低于82%时,初次再结晶织构中不仅{111}<112>组分很弱,而且偏离易磁化方向的二次再结晶核心数量成倍增加,其结果高温退火时这些核心彼此争长导致戈斯织构取向度下降.冷轧压延率太大 (88%以上){100}<011>位向变成冷轧织构中最强成份同样损害二次再结晶和磁性.
The texture coefficient N_ (hkl) of each crystal plane in the primary recrystallization texture of 3% Si-Fe alloy containing MnS + AIN was studied by X-ray diffraction method.The cold rolling reduction rate was investigated by changing the primary recrystallization The number of texture components has a great influence on the secondary recrystallization behavior, and the obtained results can well explain the magnetic variation after high temperature annealing. It is considered that the strong {111} <112> and the accurate orientation in the primary recrystallized matrix The weak component of {110} <001> is an important condition for obtaining a perfect Goss texture.The experimental results also indicate that the range of calendaring rate corresponding to the best magnetic properties is 82-87%, and the low rolling rate At 82%, not only the {111} <112> component in the primary recrystallization texture is weak, but also the number of secondary recrystallized cores deviating from the easy magnetization direction is doubled. As a result, these cores compete with each other at the time of high temperature annealing The Goss orientation decreased while cold rolling rate was too large (above 88%) {100} <011> orientation became the strongest constituent in cold-rolled texture, which also damaged secondary recrystallization and magnetism.