| Tb0.3Dy0.7（Fe,M）1.95合金的晶体轴向取向与磁致伸缩性能 |
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| 引用本文： | 张茂才,蒋成保.Tb0.3Dy0.7（Fe,M）1.95合金的晶体轴向取向与磁致伸缩性能[J].北京科技大学学报,1997,19(1):85-88,94. |
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| 作者姓名： | 张茂才 蒋成保 |
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| 作者单位： | 北京科技大学新金属材料国家重点实验室!北京，100083，北京科技大学新金属材料国家重点实验室!北京，100083，北京科技大学新金属材料国家重点实验室!北京，100083，北京科技大学新金属材料国家重点实验室!北京，100083，北京科技大学新金属材料国家重点实验室!北京，100083 |
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| 摘 要： | 研究了Ｔｂ０．３Ｄｙ０．７（Ｆｅ１－ｘＭｘ）１．９５（Ｍ＝Ｍｎ，Ａｌ，Ｂ，Ｔｉ，ｘ＝０．０３）合金在高温梯度区熔定向凝固过程中，晶体轴向取向，结晶形有晶体生长速度的变化规律和不同昌体轴向取向与磁致伸缩应变之间的关系，结果发现，晶体生长速度由低变，晶体由平面晶向胞状晶，胞技晶，树枝晶生长转化，晶体也相应地由〈１１０〉，〈１１２〉变化为〈１１０〉＋〈１１３〉＋〈１１２〉混合轴向取向，完全的〈１１２〉轴
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| 关 键 词： | 晶体轴向取向 磁致伸缩性能 稀土磁性合金 |
Crystallogrphic Orientation and Magnetostrictive Properties of Directionally Solidified Laves-phase Tb_(0.3)Dy_(0.7)(Fe,M)_(1.95) Alloys |
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| Zhang Maocai, Jiang Chengbao ,Zhao Qing ,Gao Xuexu, Shi Zhenhua.Crystallogrphic Orientation and Magnetostrictive Properties of Directionally Solidified Laves-phase Tb_(0.3)Dy_(0.7)(Fe,M)_(1.95) Alloys[J].Journal of University of Science and Technology Beijing,1997,19(1):85-88,94. |
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| Authors: | Zhang Maocai Jiang Chengbao Zhao Qing Gao Xuexu Shi Zhenhua |
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| Abstract: | The crystallographic orientation, morphologies and the relationship betweenthe orientation and magnetostrictive properties of directionally solidified Laves-phaseeTb0.3Dy0.7 (Fe,M )1.95 alloys by zone melting with high thermal gradient GL wre studied.With increasing in Laves-phase growth vilocity at a high GL given, it is shown that thesolidification structure of alloys are from planar to cellular and to final dentritic structure,and meanwhile the crystallographic orientation of the Laves-phase are various correspondent-ly. The optimum magnetostrictive properties of the alloys with perfect <112> axial orienta-tion are obtained. |
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| Keywords: | crystallographic orientation magnetostrictive properties directional solidification |
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