退火磁场施加方式对Tb0.3Dy0.7Fe1.95合金磁伸性能的影响

材料热处理学报, 2007, 28(3): 10-13. doi: 10.3969/j.issn.1009-6264.2007.03.003

退火磁场施加方式对Tb0.3Dy0.7Fe1.95合金磁伸性能的影响

江丽萍 ^1, , 吴双霞 ^2, , 沙玉辉 ^3, , 李松 ^4, , 赵骧 ^5, , 左良 ^6,

1.东北大学材料与冶金学院,辽宁,沈阳,110004;包头稀土研究院,内蒙古,包头,014030

2.包头稀土研究院,内蒙古,包头,014030

3.东北大学材料与冶金学院,辽宁,沈阳,110004

4.东北大学材料与冶金学院,辽宁,沈阳,110004

5.东北大学材料与冶金学院,辽宁,沈阳,110004

6.东北大学材料与冶金学院,辽宁,沈阳,110004

关键词：磁场退火 , 磁致伸缩 , TbDyFe合金 , 磁畴

Effect of applied mode of annealing magnetic field on magnetostriction of Tb0.3 Dy0.7 Fe1.95 alloy

研究了磁场退火时磁场施加方式对《110》取向Tb0.3Dy0.7Fe1.95定向凝固多晶合金磁致伸缩性能的影响.退火磁场强度为1T,保温时间30 min.研究表明,在623K下采用垂直磁场且冷却时保持磁场的方式退火,可改善综合磁伸性能,如提高饱和磁致伸缩系数并使低场磁致伸缩系数基本不变,提高最大动态磁致伸缩系数且其对应的磁场基本不变.冷却阶段撤去磁场会减弱磁场退火的作用,而平行磁场退火的效果与垂直磁场相反.

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退火磁场施加方式对Tb0.3Dy0.7Fe1.95合金磁伸性能的影响

Effect of applied mode of annealing magnetic field on magnetostriction of Tb0.3 Dy0.7 Fe1.95 alloy

参考文献