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Texture Development in Nd-Fe-V Alloys by Hot Deformation in View of Permanent Magnet Properties

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Abstract:

In this study, a hot forging process is applied to Nd-Fe-V as cast alloys in order to develop both the microstructure and the crystallographic texture appropriate for permanent magnet properties. A neutron diffraction texture analysis is used to account for the extrinsic magnetic anisotropy: the stabilisation of the Nd(Fe,V)12 hard magnetic phase has been achieved during forging but its extrinsic anisotropy level remains low. Attempts to understand this phenomenon are made through a discussion on the Nd-Fe-V alloy rheological and mechanical behaviour and a comparison with Nd-Fe-B permanent magnets.

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Periodical:

Materials Science Forum (Volumes 495-497)

Pages:

1389-1394

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.495-497.1389

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Online since:

September 2005

Authors:

I. Popa, Sophie Rivoirard, Daniel Chateigner, T. Hansen, Daniel Fruchart

Keywords:

High Speed Hot Forging, Initial Microstructure, Intergranular Phase Content, Permanent Magnet, Texture

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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References

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