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一、前言 Fe-Cr-Co系变形永磁合金经过十多年的研制,在新的合金成份,如一系列低钴合金、新的工艺,如变形时效、以及磁性能的提高等方面都取得了显著的进展。关于合金化学成份方面的研究,包括在Fe-Cr-Co三元系中Cr、Co含量的合适配比,以及添加各种有益的合金元素,一直受到研究者的重视。新的工艺中,无论是得到(B·H)_(max)=9.5MGOe的定向结晶铸造,或是得到(B·H)_(max)=9.8MGOe的变形时效工艺,都是通过对合金的
I. Introduction Fe-Cr-Co Deformation Permanent Magnet After more than ten years of development, the new alloy components, such as a series of low-cobalt alloys, new processes, such as deformation aging, and improve the magnetic properties have been made Significant progress. Research on the chemical composition of alloys, including appropriate proportions of Cr and Co in the Fe-Cr-Co ternary system, as well as the addition of various beneficial alloying elements, has attracted the attention of researchers. In the new process, either directional crystal casting with (B · H) _ (max) = 9.5MGOe or deformation aging process with (B · H) _ (max) = 9.8MGOe is achieved by annealing the alloy of