EFFECT OF ND CONTENT ON INDUCED ANISOTROPY IN HOT DEFORMED FE-ND-B MAGNETS

被引：43
|
作者：
LEONOWICZ, M
DAVIES, HA
机构：
[1] Department of Engineering Materials, University of Sheffield, Sheffield
来源：
MATERIALS LETTERS | 1994年 / 19卷 / 5-6期
关键词：
D O I：
10.1016/0167-577X(94)90170-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic properties of die-upset forged Fe-Nd-B magnets with Nd content varying from 6 to 20 at% have been studied. It has been found that the crystallographic alignment is only possible for magnets containing more than 12 at% Nd, i.e. having a liquid grain boundary phase during deformation. This phase provides a fast diffusion path for atomic migration. The mechanism of texture formation is considered to be complex and comprise grain fracturing, dissolving of unfavourably oriented crystallites, growth of the grains with favourable orientation, as well as renucleation and growth of new grains from the saturated liquid boundary phase.
引用
收藏
页码：275 / 279
页数：5
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