外磁场对Fe-Cr-Co系永磁体磁性的影响

Effect of External Magnetic Field on Magnetic Property of Permanent Magnet in Fe-Cr-Co System

研究了稳恒和交变磁场对５种Ｆｅ－Ｃｒ－Ｃｏ系永磁体磁性的影响，得到了磁场强 度及其作用时间对磁性的影响规律。结果表明：含Ｖ和Ｔｉ的三种试样的磁稳定性 比不含Ｖ和Ｔｉ的好。还探讨了磁稳定化处理问题。含Ｖ和Ｔｉ的试样的稳定化 处理，其稳恒场为３１．８４ｋＡ／ｍ，交变场为 ３．９８～７.９６ｋＡ／ｍ；不含Ｖ和Ｔｉ的试 样的稳定化处理，其稳恒场为７．９６ ｍＡ／ｍ，交变场为１.９９～５．９７ｋＡ／ｍ．

This paper deals with the effect of stability and alternating magnetic field on magnetic property of permanent magnets with five types of composition in Fe-Cr-Co system, and regularities about the effect of magnctic field strength and its acting time on magnetic properties are given. It has bcen shown that magnetic stability of three samples with V and Ti are better than those without V and Ti. And this paper also discusses the problem of magnetic stabilized treatment. On stabilized treatment of samples with V and Ti, their stability magnetic field strength are 31.84 kA·m^(-1), alternating magnetic field strength are 3.98～7.96 kA·m^(-1). On stabilized treatment of samples without V and Ti,their stability magnetic field strength are 7.96 kA·m^(-1), alternating magnetic field strength are 1.99～5.97 kA·m^(-1).