添加合金元素对Pr-Fe-B永磁合金结构和磁性能的影响

The Effects of Additives on Microstructure and Magnetic Properties of Pr-Fe-B Permanent Magnets

简述了Co、Nb、Zr、Ga、Cu、Si等合金元素的加入对Pr-Fe-B永磁合金的结构和磁性能的影响情况。以上合金元素的加入,均能不同程度地提高Pr-Fe-B的磁性能;但含量超过一定比例后,磁性能则有所下降。Co、Cu、Si的加入还有助于Pr-Fe-B合金居里温度的提高。

The effects of Co, Nb, Zr, Ga, Cu and Si additives on the microstructure and magnetic properties of Pr-Fe-B permanent magnets are briefly reviewed. Addition of these elements may improve the magnetic properties in varying degrees. But excessive additions result in decrease in magnetic properties. The addition of Co, Cu and Si can also raise Curie temperature of Pr-Fe-B.