摘要
实验研究了热处理对〈110〉取向多晶Fe83Ga17合金磁致伸缩性能的影响.发现Fe83Ga17经过淬火处理后,饱和磁致伸缩应变明显增大.在25MPa预压力作用下,饱和磁致伸缩应变超过了300×10-6.中子衍射和差热分析实验表明,Fe83Ga17合金在炉冷过程中存在相结构变化,结构变化导致合金磁致伸缩应变的改变,淬火处理能够抑制合金中DO3相的形成,从而使Fe83Ga17合金的磁致伸缩应变增大.
The effect of heat treatment on the magnetostrictive properties of a （110）-oriented polycrystal Fe83Ga17 alloy was investigated. It was found that the saturation magnetostrictive strain of the quenched Fe83Ga17 alloy exceeded 300 ×10^-6 under a compressive stress of 25 MPa. The results of Neutron diffraction and differential thermal analysis confirmed that slow cooling leads to the change of phase structure which resuits in the change of magnetostrictive strain. The increase in magnetostrictive strain of the Fe83Ga17 alloy treated by quenching is explained as that the long-range DO3 is suppressed.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2006年第6期539-541,共3页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金资助项目(No.10274005)
关键词
FE-GA合金
磁致伸缩
中子衍射
差热分析
Fe-Ga alloy
magnetostriction
neutron diffraction
differential thermal analysis
