Tb对Fe_(81)Ga_19快淬合金薄带组织和磁致伸缩性能的影响  

Effect of Tb on Microstructure and Magnetostriction of Fe_(81)Ga_(19) Melt-Spun Ribbons

作　　者：张光睿[1,2] 江丽萍[1,2] 郝宏波[1,2] 吴双霞[1,2] 杨建东[1,2] 

机构地区：[1]包头稀土研究院,内蒙古包头014030 [2]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030

出　　处：《稀土》2013年第3期32-35,共4页Chinese Rare Earths

基　　金：国家自然科学基金项目(51141005);内蒙古自然科学基金项目(2012MS0809);国际科技合作项目(2010DFA52570)

摘　　要：利用快淬甩带方法制备了Fe81Ga19Tbx(x=0,0.2,0.4,0.6)合金薄带,研究了合金薄带的显微组织结构和磁致伸缩性能。实验结果表明,Fe-Ga-Tb合金薄带的显微组织及磁致伸缩性能与合金的成分密切相关,合金薄带基体为Fe(Ga)无序固溶相体。Fe81Ga19Tb0.2合金的磁致伸缩系数最大,达到-1320×10-6,且薄带厚度方向[100]择优取向,Tb在晶界处富集。Fe81Ga19Tbx（x=0,0.2,0.4,0.6） alloy ribbons were prepared by melt-spinning,and the effects of different component on microstructure and magnetostriction were investigated.The results show that the microstructure and magnetostriction associate closely with the component.Fe81Ga19Tb0.2 alloy ribbons obtain the maximum magnetostricton of-1320×10-6.The matrix of Fe-Ga-Tb ribbons is disordered Fe（Ga） solid solution.The preferred orientation was formed along the thickness direction,and Tb precipitated mostly lay in grain boundary.

关 键 词：Fe-Ga-Tb合金薄带 熔体快淬 磁致伸缩 

分 类 号：TG139.7[一般工业技术—材料科学与工程]