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中文摘要：
采用区熔定向凝固技术制备了〈110〉取向（Tb0．36Dy0．64）1-xHoxFe2合金，研究了在0,5和10MPa压力下该合金的磁致伸缩性能及其磁致伸缩的滞后特性．结果表明：在外加轴向压应力作用下，〈110〉取向（Tb0．36Dy0．64）1-xHoxFe2合金具有明显的磁致伸缩“跳跃效应”；x〈0．3的合金在较宽的温度范围（-60—80℃）内具有巨磁致伸缩特性；随x的增加，合金磁致伸缩滞后显著降低．在外加压力为0，5和10MPa时，相对于滞后宽度为10．4，13．5和16．6kA／m的x=0合金而言，x=0．1合金的滞后宽度减小为9．3，11．6和13．7kA／m；x=0．2合金的滞后宽度减小为7．5，10．8和12．9kA／m；x=0．3合金的滞后宽度减小为5．4，8．8和9．8kA／m．
英文摘要：
The （Tb0.a6Dy0 64）1-xHoxFe2 magnetostrictive alloys with （110） orientation were prepared by zone melting directionally solidified method. The magnetostrictive performance and hysteresis of （110） aligned polycrystalline （Tb0.36Dy0.64）1-xHoxFe2 under compressive stresses of 0, 5, 10 MPa were investigated. An obvious magnetostriction ＂ jump ＂ effect under compressive stress was observed in these （110） aligned polycrystalline （Tb0.36Dy0.64）1-xHoxFe2 samples. The （Tb0.36Dy0.64）1-xHoxFe2 alloys （x 〈0.3） has the character of giant magnetostriction in a wide operating temperature range from -60 to 80 ℃. The hysteresis, represented by the width of magnetostriction versus the applied field, was reduced dramatically due to the addition of Ho element. Compared to the Tb0.36Dy0.64Fe1.95 alloy （x=0） with hysteresises of 10.4, 13.5, 16.6 kA/m under compressive stresses of 0, 5, 10 MPa, the magnetostriction hysteresises reduced to 9.3, 11.6, 13.7 kA/m for x=0.1; to 7.5, 10.8, 12.9 kA/m for x=0.2 and to 5.4, 8.8, 9.8 kA/m for the alloy with x=0.3, respectively.
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