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对名义成分为Nd12.3-xDyxFe79.7Nb0.8Zr0.8Cu0.4B6(x=0,0.5,1.5,2.5)的预合金进行长时间高温退火,将其破碎,取向并粘结.分别沿取向方向和垂直于取向方向测量其磁化曲线.将两曲线延长至相交,交点对应的磁场视为材料的磁晶各向异性场.结果表明:随着Dy含量的增加,合金各向异性场(HA)呈线性增加.当Dy的原子分数为2.5%时,合金各向异性场达到7536 kA·m-1;平均每增加1%Dy,各向异性场提高值为200～300 kA·m-1.
The prealloy with the nominal composition of Nd12.3-xDyxFe79.7Nb0.8Zr0.8Cu0.4B6 (x = 0, 0.5, 1.5, 2.5) is annealed at high temperature for a long time, broken, oriented and bonded, And perpendicular to the direction of the measured magnetization curve.The two curves extended to intersect, the corresponding magnetic field at the intersection point as the magnetocrystalline anisotropy field.The results show that: with the increase of Dy content, the alloy anisotropy field (HA) When the atomic fraction of Dy is 2.5%, the anisotropy field of the alloy reaches 7536 kA · m-1. For every 1% increase of Dy, the increase of the anisotropy field is 200-300 kA · m-1.