A rate-dependent user subroutine UMAT was written in Fortran language,which could be used for descri-bing the crystal plasticity constitutive relation in the finite element calculation.A single crystal model including two 3 D spherical voids was established to study the aggregation behavior of voids with different crystal orientations in FCC crystal.The computed results of different crystallographic orientations were compared,which shows that signifi-cant shape,growth direction and ligament are different with different crystal orientations in the modification process.The coalescence effect of cube orientation voids is found to be the strongest and easiest to polymerization by comparing the four initial crystallographic orientations (cube orientation,goss orientation,copper orientation, brass orientation).And the main growth direction of two voids in single crystal is consistent with the ligament direc-tion,and the easier deformation ligament zone will accelerate the rate of coalescence of voids.%采用电沉积法在铜电极上进行了Fe-Co-W磁性薄膜的制备，并研究了镀液中钨盐（Na2 WO4·2H2 O）含量对Fe-Co-W薄膜形貌、结构和磁性能的影响。镀液组分浓度为FeSO4·7H2 O 0．08 mol／L， CoSO4·7H2O 0．05 mol／L，Na2WO4·2H2O 0．01-0．015 mol／L，H3BO30．2 mol／L，Na3C6H5O7·2H2O 0．2 mol／L。结果表明，Na2 WO4·2H2 O含量对薄膜的表面形貌影响较大。随着溶液中Na2 WO4·2H2 O含量的增加，薄膜中W含量增加，纳米晶晶粒尺寸减小，薄膜矫顽力减小，在Na2WO4·2H2O为19．8 wt．％时薄膜为非晶态，Co含量反常增加，导致矫顽力反常增加。在Na2WO4·2H2O含量为27．3 wt．％时，其薄膜矫顽力为2．74 Oe，软磁性能最佳。
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