本文根据三维取向分析的广义矢量法,分别确定W20冷轧无取向硅钢片的表面层、1/4层及中心层的晶粒取向分布函数(ODF);扩展运用晶粒取向分布无样品对称多晶材料之磁各向异性理论,定量算出板片上不同方向的磁转矩。理论预算值与实测磁转矩曲线符合较好。
The orientation distribution function of the crystallites in a cold-rolled W20non-oriented Si steel sheet was determined for the layers along surface, 1/4 depth and centre, res-pectively, with the generalized vector method. The angular variation of magnetic torque in thesheet plane was quantitatively calculated by extending the theory of magnetic anisotropy to thepolycrystalline materials with no sample symmetry. The values predicted theoretically are wellfit to the magnetic torque plot measured.
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