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利用SEM中的背散射电子衍射技术研究了Al—1．3Mn质量分数，％）合金中不同形变取向基体中粒子周围亚晶以及再结晶初期相应的粒子促进形核晶粒的取向分布，并将结果与单晶中的情形进行了比较结果表明，多晶中各形变取向基体中粒子周围亚晶转动的规律及粒子促进形核晶粒的取向与同取向单晶中的情况相同，并非是随机分布的．文章的第二部分将分析粒子与其它形核地点（晶界、立方带）的交互作用以及再结晶织构的形成
The backscattering electron diffraction (SEM) technique was used to study the orientation distribution of the subgrains around the particles in the Al-1.3Mn alloy with different deformation orientation matrix and the corresponding particles in the early stage of recrystallization. The results are compared with those in the single crystal. The results show that the rule of the subgrain rotation around the particles in each deformable oriented matrix in the polycrystal and the orientation of the particles for promoting the nucleation are the same as those in the single crystal, which are not random Distribution. The second part of the paper will analyze the interaction between particles and other nucleation sites (grain boundaries and cubic bands) and the formation of recrystallized texture