CAJ | 학술논문

用电弧炉熔炼法制备了PrxTb0.2Dy0.8-xFe1.85C0.05(x=0.1～0.4)合金。分别采用X射线衍射（XRD）、金相显微镜、振动样品磁强计（VSM）和应变仪分析了合金的结构、金相、居里温度和磁致伸缩。研究发现x≥0.2时，合金中出现了RFe3相和稀土相；居里温度随着Pr含量的增加表现为下降趋势；合金Pr0.2Tb0.2Dy0.6Fe1.85C0.05表现出了较为优良的磁致伸缩特性。
용전호로용련법제비료PrxTb0.2Dy0.8-xFe1.85C0.05(x=0.1～0.4)합금。분별채용X사선연사（XRD）、금상현미경、진동양품자강계（VSM）화응변의분석료합금적결구、금상、거리온도화자치신축。연구발현x≥0.2시，합금중출현료RFe3상화희토상；거리온도수착Pr함량적증가표현위하강추세；합금Pr0.2Tb0.2Dy0.6Fe1.85C0.05표현출료교위우량적자치신축특성。
PrxTb0.2Dy0.8-xFe1.85C0.05 (x=0.1~0.4) alloys were fabricated by arc-melting method. The structure, metallography, Curie temperature and magnetostriction of alloys were investigated by means of X-ray diffraction, optical microscopy, vibrating sample magnetometer and standard strain technique. RFe3 phase and rare earth phase appear when x≥0.2;Curie temperature decreases with increasing Pr content;Pr0.2Tb0.2Dy0.6Fe1.85C0.05 alloy shows good magnetostrictive properties.