Cu-Fe-Cr-Ni原位复合材料的组织结构与磁性

Microstructure and Magnetic Properties of Cu-Fe-Cr-Ni in-Situ Composites

摘要:

通过真空熔炼、热轧和大量拉拔变形制备Cu-Fe-Cr-Ni原位复合材料。用X射线衍射仪、扫描电镜和透射电镜观察分析结构和形貌，用VSM测试Cu-Fe-Cr-Ni原位复合材料的磁性。结果表明，随着铁素体纤维细化至亚微米级，沿丝材轴向Cu-Fe-Cr-Ni原位复合材料表现出显著的磁各向异性，出现了Perminvar效应，磁滞回线呈峰腰形。随着变形量的增大，Cu-Fe-Cr-Ni原位复合丝材的矩形度逐渐提高，在η=10.11时达到0.33

Abstract:

Cu-Fe-Cr-Ni in-situ composite wires were manufactured by inductive melting, casting, hot rolling and heavily cold drawing. The structure and morphology were analyzed by XRD, SEM and TEM. The magnetic properties were examined by vibrating sample magnetometer. With the ferrite fibers are fined down to submicrometer, obvious magnetic anisotropy and the Perminvar effect were found along the axis of wires. After deformation of higher amount, the rectangle degree increases gradually to a value of 0.33 at η=10.11