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研究了在11.5 T的磁场强度下,强磁场热处理对稀土-铁基合金TbFe2和Tb0.27Dy0.73Fe1.95的晶体取向、微观形貌及其磁致伸缩性能的影响.结果表明,强磁场退火不会改变合金的择优取向,但是取向度较退火前有显著提高.2种样品的相组成均无变化,但11.5 T热处理使TbFe2样品中的富稀土相明显减少,磁性相面积增大.强磁场热处理后,Tb0.27Dy0.73Fe1.95合金的磁致伸缩系数增幅较小,而TbFe2合金的磁致伸缩系数比无磁场样品有较大提高.

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