FORMATION MECHANISM FOR NANOCRYSTALLINE  FROM AMORPHOUS Fe_（85）Zr_9B_6  AND Fe_（84）Zr_9B_6Cu_1 ALLOYS

Acta Metall Sin

1995, Vol. 31

Issue (20): 353-359 DOI:

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FORMATION MECHANISM FOR NANOCRYSTALLINE FROM AMORPHOUS Fe_（85）Zr_9B_6 AND Fe_（84）Zr_9B_6Cu_1 ALLOYS

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LING Gang; JI Yu; HU Xiao jun; WU Qiulin; CHU Wei; YANG Guobin; WANG Run (University of Science & Technology Beijing; Beijing 100083) (Shougang Metallurgical Research Institute; Beijing 100085) (Manuscript received 1994-11-25; in revised form 1995-04-03). FORMATION MECHANISM FOR NANOCRYSTALLINE FROM AMORPHOUS Fe_（85）Zr_9B_6 AND Fe_（84）Zr_9B_6Cu_1 ALLOYS. Acta Metall Sin, 1995, 31(20): 353-359.

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Abstract The microstructure changes in the nanocrystalline soft magnetic material of FeZrB(Cu) alloys with different temperatures of heat treatment and dynamic heating-up processes have been investigated by using TEM and EDAX. It has been found that there appears appreciable phase separation before crystallization. In amorphous phase there are Zr-rich and Fe-rich regions. The Zr-rich phase has a very important effect on precipitation and stability of bcc Fe phase, and the obvious precipitation of α-Zr phase indictates the beginning of instable growth for bcc Fe phase. It has been confirmed that the phase separation of FeZrB(Cu) alloys is a spinodal decomposition process. Correspondent. LING Gang, postdoctor, Box 61, Beijing Agricultural Engineering University, Beijing 100083

Key words: nanocrystal amorphous phase crystallization

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1995/V31/I20/353

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