Influence of Cooling Rate on Microstructure of NdFeB Strip Casting Flakes

Author:

Guo Bing Lin1,Li Bo1,Wang Dongling1,Yu Xiaojun1,Hu Ji Fan2

Affiliation:

1. Central Iron and Steel Research Institute

2. Shandong University

Abstract

In this paper, flakes of NdFeB cast alloys were prepared by using the strip casting technique. Microstructure and composition of phases in NdFeB SC flakes were studied by SEM and energy spectra. Especially, the influences of cooling rate on the microstructure of SC flakes were discussed, helping us to master strip casting technology. The results show that the cooling rate plays an important role in obtaining the perfect microstructure of SC flakes, which thickness is supposed not less than 0.32mm in these studies.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference6 articles.

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2. B.M. Ma, Y.L. Liang, J. Patel, et al., Proceedings of the 11th Conterence on Magnetism & Magnetic Technologics July. 1996, p.125.

3. X.J. Zhang, X.J. Yin, P.J. McGuiness, et al., Metallurgical Processing of Nd2Fe14B Type Permanent Magnetic Alloys, J. Mater. Proc. Tech. 1995, 48: 461-467.

4. Y. Hirose, et al., Proc. 15 th Int. Workshop on Rare Earth Magnets and Their Applications ( 15th 1998, Dreaden, Germany) p.77.

5. Liu yinglie,《Rare earth permanent magnet》,vol. 1, 2002,p.20, (in Chinese).

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