Effect of quenching on magnetostriction and microstructure of melt-spun Fe83Ga17 alloy

The effect of quenching on magnetostriction and microstructure of melt-spun Fe83Ga17 ribbons was investigated. The results show that magnetostriction of ribbons is greatly improved by heat treatment and the value of lambda of ribbons reached nearly -2300 ppm after annealed at 700 deg C for 3 h. The...

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Veröffentlicht in:	Journal of alloys and compounds 2008-09, Vol.463 (1-2), p.6-9
Hauptverfasser:	Sun, Li, Zhang, Maocai, Gao, Xue Xu, Qiao, Yi, Zhu, Jie
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Equations of state, phase equilibria, and phase transitions Exact sciences and technology Magnetic properties and materials Magnetomechanical and magnetoelectric effects, magnetostriction Physics Solid-solid transitions Specific phase transitions
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Zusammenfassung:	The effect of quenching on magnetostriction and microstructure of melt-spun Fe83Ga17 ribbons was investigated. The results show that magnetostriction of ribbons is greatly improved by heat treatment and the value of lambda of ribbons reached nearly -2300 ppm after annealed at 700 deg C for 3 h. The XRD analyses reveal that the microstructure of melt-spun Fe83Ga17 alloy ribbons was changed after heat treatment and the transition of A2 + DO3 - > A2 + DO3 + DO19 occurred at 700 deg C for the ribbons. The magnetostriction of Fe83Ga17 ribbons is influenced by the emergence of DO19 structure and the increase of ordered degree, and the variation of crystallinity of A2 phase is also related to the magnetostriction of Fe83Ga17 ribbons.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2007.08.087