永磁体的磁化行为

[中文适用范围]： 本技术报告旨在详细描述永磁体的磁化行为。首先，在第 3 节中回顾了施加磁场强度与有效内部磁场强度之间的关系。在第 4 节中讨论了磁化前的初始状态。随后，在第 5 节（主章节）中概述了所有常见类型永磁体的磁化行为。该章节根据主导的矫顽力机制进行细分，即烧结铁氧体、稀土 - 铁 - 硼（RE-Fe-B）和 SmCo5 磁体的成核型，碳钢和 Sm2Co17 磁体的钉扎型，以及纳米晶稀土 - 铁 - 硼、铝镍钴（Alnico）和 CrFe-Co 磁体的单畴型。最后，汇总了现代永磁体的推荐磁化场强。 [外文原描述]： IEC/TR 62517:2009(E) describes the magnetizing behaviour of permanent magnets in detail covering: - the relationship between the applied magnetic field strength and the effectively acting internal field strength; - the initial state prior to magnetization; - the magnetizing behaviour of all common types of permanent magnets subdivided according to the dominant coercivity mechanisms, namely the nucleation type for sintered Ferrites, RE-Fe-B and SmCo5 magnets, the pinning type for carbon steel and Sm2Co17 magnets and the single domain type for nano-crystalline RE-Fe-B, Alnico and Cr-Fe-Co magnets; - the recommended magnetizing field strengths for modern permanent magnets compiled in a comprehensive table.