研究了Ga、Zr等微量元素对HDDR工艺制备的Nd（Fe，Co）B磁粉各向异性的影响。实验指出：在采用HDDR工艺制备Nd（Fe，Co）B磁粉时，加入少量的Ga、Zr等元素后，磁粉的晶粒结构没有明显的改变。磁粉的剩磁增强，磁能积增加，是由于在歧化过程中少量尚未充分分解的2∶14∶1硬磁性四方相成为再结合过程中晶粒成长的核，使新产生的晶粒具有一定的定向取向性，从而使磁粉具有磁各向异性。 The effects of trace elements such as Ga and Zr on the anisotropy of Nd (Fe, Co) B magnetic particles prepared by HDDR process were studied. Experiments show that: when using HDDR process to prepare Nd (Fe, Co) B magnetic powder, the addition of a small amount of Ga, Zr and other elements, the grain structure of the magnetic powder did not change significantly. Magnetic remanence enhancement, magnetic energy product increases, due to the disproportionation process has not yet been fully decomposed a small amount of 2:14: 1 hard magnetic tetragonal phase recombination process of grain growth of the nucleus, the newly generated crystal grain has a certain Directional orientation, so that the magnetic powder with magnetic anisotropy.