金属学报  2004, Vol. 40 Issue (4): 378-382

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定向凝固Tb--Dy--Fe合金的热处理组织与性能

蒋成保 赵 岩 徐惠彬

北京航空航天大学材料学院; 北京 100083

MICROSTRUCTURE AND PROPERTIES OF THE HEAT TREATED DS Tb--Dy--Fe ALLOY

JIANG Chengbao; ZHAO Yan; XU Huibin

School of Materials Science and Engineering; Beijing University of Aeronautics and Astronautics; Beijing 100083

蒋成保; 赵岩; 徐惠彬 . 定向凝固Tb--Dy--Fe合金的热处理组织与性能[J]. 金属学报, 2004, 40(4): 378-382 .
, , . MICROSTRUCTURE AND PROPERTIES OF THE HEAT TREATED DS Tb--Dy--Fe ALLOY[J]. Acta Metall Sin, 2004, 40(4): 378-382 .

摘要 参考文献 相关文章 Metrics 全文: PDF(339 KB)   摘要: 采用区熔定向凝固的方法, 制备<110>取向 Tb--Dy--Fe超磁致伸缩合金晶体. 用管式炉氩气保护, 在 900---1100 C进行4和48 h的均匀化热处理, 研究了热处理对Tb--Dy--Fe合金取向、组织、磁致伸缩性 能和力学性能的影响. 结果表明, 热处理不改变 Tb--Dy--Fe合金的轴向择优取向; 热处理4 h后, 网状富稀土相明显退化, 向颗粒状转变; 热处理48 h后, 网状富稀土相基本消失, 形成大量颗粒状富稀土相. 热处理明显提高了Tb--Dy--Fe合金样品的磁致伸缩性能, 特别是提高低场磁致伸缩性能, 但力学性能下降. 经4 h热处理, 本实验条件下制备的 <110>取向Tb--Dy--Fe合金样品综合性能最好. 关键词 ： Tb--Dy--Fe合金,  超磁致伸缩     Abstract：<110> oriented rods of a Tb--Dy--Fe magnetostrictive alloy have been successfully prepared by zone melting unidirectional solidification. A homogenization annealing for 4 or 48 h at 900---1100 C has been carried out in a quartz cylinder under Ar protection after pumping to 2X10 -3 Pa. It was found that, after annealing, <110> preferred orientation is unchanged, the net shape pseudo--eutectic rare earth phase trends discontinuous and spheroidal, magnetostriction slightly decreased without pre--stress but increased obviously with pre--stress. An obvious magnetostriction jump effect was observed in the annealed samples. A satisfactory magnetostrictive property of 1950X10 -6 was obtained under 15 MPa pre--stress after 4 h heat treatment. The compressive stresses of the heat--treated samples decrease monotonously with increasing the soaking time. A satisfactory combination of the magnetostriction and mechanical properties was obtained at annealing for 4 h for the <110> oriented Tb--Dy--Fe alloy. Key words： Tb--Dy--Fe alloy    magnetostriction    收稿日期: 2003-04-16      ZTFLH:  TG113   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 蒋成保 赵岩 徐惠彬 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2004/V40/I4/378 [1] Clark A E. Ferromagnetic Materials. Vol.1, (North-Holland, Amsterdam, 1980) : 591 [2] Verhoeven J D, Ostenson J E, Gibson E D, McMasters O D. J Appl Phys, 1989; 66: 772 [3] Jiang C B, Zhou S Z, Wang R. Chin J Mater Res, 1998; 12: 482(蒋成保,周寿增,王 润.材料研究学报, 1998;12:482) [4] Bonino O, Rango P D, Tournier R. J Magn Magn Mater,2000; 212: 225 [5] Zhou S Z, Gao X X, Zhang M C, Zhao Q, Shi Z H. JMater Sci Technol, 2000; 16: 175 [6] Zhao Y, Jiang C B, Zhang H, Xu H B. J Alloys Compds,2003; 354: 263 [7] Verhoeven J D, Bevolo A J, Peterson D T, Baker H H, Mc-Maters O D, Gibson E D. Metallography, 1985; 18: 277A [1] 张昌盛 马天宇 严密 裴永茂 高旭 . <110>取向Tb0.36Dy0.64(Fe0.85Co0.15)2合金的磁机械阻尼特性[J]. 金属学报, 2009, 45(6): 749-753. [2] 蒋成保; 赵岩; 徐惠彬 . <111>和<112>取向Tb--Dy--Fe超磁致伸缩合金的定向生长[J]. 金属学报, 2004, 40(4): 373-377 . Viewed Full text Abstract Cited   Shared      Discussed