Effect of phase composition on crystal texture formation in hot deformed nanocrystalline SmCo5 magnets

In the present study, bulk anisotropic nanocrystalline SmCo5 magnets were prepared by hot press and subsequent hot deformation method. Effect of phase composition on texture and magnetic properties are presented, based on which the mechanism of plastic deformation and texture formation during the ho...

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Bibliographic Details
Published in:AIP advances 2018-05, Vol.8 (5), p.056214-056214-4
Main Authors: Ma, Qiang, Yue, Ming, Xu, Xiaochang, Zhang, Hongguo, Zhang, Dongtao, Zhang, Xuefeng, Zhang, Jiuxing
Format: Article
Language:English
Subjects:
Composition effects
Deformation
Deformation effects
Deformation mechanisms
Magnetic properties
Magnetism
Magnets
Nanocrystals
Phase composition
Phase transitions
Plastic deformation
Samarium base alloys
Texture
Weight loss
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Summary:In the present study, bulk anisotropic nanocrystalline SmCo5 magnets were prepared by hot press and subsequent hot deformation method. Effect of phase composition on texture and magnetic properties are presented, based on which the mechanism of plastic deformation and texture formation during the hot deformation process is discussed. The SmCo5 magnets were prepared by hot deformation, excessive Sm of 2.5 wt% and 10 wt% was added to compensate the weight loss due to Sm evaporation. Our analyses reveal that the phase composition is one of the most important parameters that determine the texture of SmCo5 magnets. It is therefore suggested that the existence of 2:17 phase and its phase transformation undermined the crystal texture formation as well as the magnetic properties of nanocrystalline SmCo5 magnets.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.5007658