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利用磁力搅拌悬浮熔炼方法制备了TbFeCo合金,对其组织结构及磁性能进行了观察测试。研究结果表明,利用磁力搅拌悬浮熔炼方法制备的合金组织比较均匀,结合电镜可看到组织特,点为均匀的基体中分布少量第二相。初步分析第二相为TbFe3,同时可看到少量板条状组织,这种板条状组织的形成可能是因为合金熔炼后凝固时冷速很快,基体中未发现大量位错亚结构。材料的矫顽力随温度升高而增加,在600K时达到最大,饱和磁化强度则随温度升高而单调下降。
TbFeCo alloy was prepared by magnetic stir suspension melting method, and the microstructure and magnetic properties of TbFeCo alloy were observed and tested. The results show that the microstructure of the alloy prepared by the magnetic stirring and suspension smelting method is relatively uniform, the microstructure and the microstructure of the alloy can be observed by electron microscopy, and a small amount of the second phase is distributed in the uniform matrix. Preliminary analysis of the second phase TbFe3, at the same time you can see a small amount of lath-like structure, the formation of this lath-like structure may be due to alloy melting rapid solidification rate of cooling, the matrix did not find a large number of dislocation substructure. The coercivity of the material increases with increasing temperature and reaches the maximum at 600K, while the saturation magnetization decreases monotonously with the increase of temperature.