High-toughness magnet and method of making

Abstract

The application belongs to the technical field of Nd-Fe-B magnets, and relates to a high-toughness magnet and a preparation method. 14 The main phase is a T1 phase, the T1 phase is RE2T 90 T 10 B, and the total length of the grain boundaries is L1 microns; the grain boundary phase is a T2 phase and a T3 phase, the T2 phase is RE 1.1 T4B4, and the total length of the grain boundaries is L3 microns; 0.4 < L2 / L1 < 1, and 0.1 < L3 / L1 < 0.4. The high-toughness magnet prepared by the application has high impact strength, can effectively avoid the rupture phenomenon caused by impact, vibration and other harsh environments, and can avoid huge losses; so that the material also has the characteristics of high toughness, improves the yield of the material, further increases the application range of the material, and meets the potential needs of customers.

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