Microstructure and magnetostrictive properties of Tb doped Fe-Ga bulk alloys prepared by melt quenching

The microstructure and magnetostrictive properties were investigated in the Tb doped Fe83Ga17-xTbx（x = 0.05, 0.10, 0.20, 0.30, 0.40, 0.50） bulk rods prepared by melt rapidly quenching. The partial solid solubility of Tb in the Fe-Ga matrix was preliminary detected by the lattice parameters and SEM o...

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Bibliographic Details
Published in:Rare metals 2014-06, Vol.33 (3), p.309-312
Main Authors: Zhang, Shu-Xin, Wu, Wei, Zhu, Xiao-Xi, Liu, Jing-Hua, Jiang, Cheng-Bao
Format: Article
Language:English
Subjects:
Biomaterials
Chemistry and Materials Science
Energy
Ferrous alloys
Grain boundaries
Lattice parameters
Magnetostriction
Materials Engineering
Materials Science
Melts
Metallic Materials
Microstructure
Nanoscale Science and Technology
Physical Chemistry
Preferred orientation
Quenching
Texts
体积
制备
合金
熔体快淬
磁致伸缩性能
组织
铽掺杂
镓
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Summary:The microstructure and magnetostrictive properties were investigated in the Tb doped Fe83Ga17-xTbx（x = 0.05, 0.10, 0.20, 0.30, 0.40, 0.50） bulk rods prepared by melt rapidly quenching. The partial solid solubility of Tb in the Fe-Ga matrix was preliminary detected by the lattice parameters and SEM observation. The matrix keeps A2 structure and the second phase appears surround the grain boundary as x C 0.1. h100 i preferred orientation is also observed for x = 0.1 sample along the axis of the quenched rod. The saturation magnetostriction first increases and maximum value reaches at x = 0.1, and then decreases with Tb addition increasing. The initial increase of the magnetostriction should be associated with the partial solution of Tb in the matrix, the maximum value at x = 0.1 should be attributed to the h100 i preferred orientation, and the decrease of the magnetostriction is correlated with the appearance of the second phase along the grain boundary.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-013-0183-1