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Cu-Fe-Cr原位复合材料的组织结构与磁学性质
Microstructure and magnetic properties of Cu-Fe-Cr in-situ composite
【Author】 SUN Shi-qing MAO Lei (School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050054,China)
【机构】 河北科技大学材料科学与工程学院;
【摘要】 通过真空熔炼、锻造和大量拉拔变形制备了 Cu-16Fe-2Cr 原位复合材料。用 X-射线衍射仪(XRD)、光学金相显微镜和扫描电镜(SEM)观察分析了纤维相结构和形貌,用振动样品磁强计(VSM)测试了 Cu-16Fe-2Cr 原位复合材料的磁性。结果表明,随着 Fe-Cr 纤维的细化和沿织构〈110〉方向的定向排列,沿丝材轴向 Cu-16Fe-2Cr 原位复合材料表现出显著的磁各向异性。随着变形量的增大,Cu-16Fe-2Cr 原位复合丝材的矫顽力和矩形度逐渐提高,在η=5.42时分别达到163×79.6A·m-1和 0.71。
【Abstract】 Cu-16Fe-2Cr in-situ composite wires were manufactured by vacuum inductive melting,casting,forging and heavily cold drawing.The structure and morphology of Cu-16Fe-2Cr in-situ composite were analyzed by XRD,optical microscope and SEM. Magnetic properties of Cu-16Fe-2Cr in-situ composite wires were examined by vibrating sample magnetometer.With the Fe-Cr fibers fined down and aligned with a preferred crystallographic orientation〈110〉,obvious magnetic anisotropy were found paralleling to the long axis of wires.After higher amounts of deformation,the coercivity and the squareness increase gradually,and reach 163×79.6 A.m-1 and 0.71 atn=5.42,individually.
【Key words】 copper based in-situ composite; microstructure; amounts of deformation; magnetic property;
- 【会议录名称】 第九次全国热处理大会论文集(二)
- 【会议名称】第九次全国热处理大会
- 【会议时间】2007-09
- 【会议地点】中国辽宁大连
- 【分类号】TB303
- 【主办单位】中国机械工程学会热处理学会