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用X射线衍射仪、振动样品磁强计、扫描电镜及透射电镜对Sm2Fe15．3Zr0.2Al1.5C1．5合金的微结构和磁性进行了研究。合金主要由2／17相、α-Fe相和ZrC相组成。在铸态下，合金微结构呈粗大的枝晶，其矫顽力和剩磁几乎为0；而经40m·s－1快淬及750℃×30min退火处理后获得了平均晶粒尺寸为35um的纳米晶结构，其矫顽力和剩磁分别为923KA·m(－1)，55Am2·kg(－1)。在以上工艺过程中相组成基本保持不变。因此，合金的磁性能主要取决于微结构的变化。
The microstructure and magnetic properties of Sm2Fe15.3Zr0.2Al1.5C1.5 alloy were investigated by X-ray diffraction, vibrating sample magnetometer, scanning electron microscopy and transmission electron microscopy. The alloy mainly consists of 2/17 phase, α-Fe phase and ZrC phase. In the as-cast state, the microstructure of the alloy is coarse dendrites, and the coercive force and residual magnetization are almost zero. The average grain size after annealing at 40m · s-1 and annealing at 750 ℃ for 30min is 35um The coercivity and residual magnetization were 923 K · m -1 and 55 Am 2 · kg -1, respectively. In the above process phase composition remained unchanged. Therefore, the magnetic properties of the alloy mainly depends on the microstructure changes.