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SC工藝制備Sm2Co17型永磁材料的金相組織與磁性能
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國(guó)家重大科技專項(xiàng)（2008ZX01006-005）


Metallographic Microstructure and Magnetic Properties of Sm2Co17 Rare Earth Permanent Magnet Material by a Strip Casting Technique
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    摘要:

    采用SC工藝和通用的熔煉工藝制備了Sm2Co17型永磁材料。對(duì)兩種工藝所制備的合金金相組織、永磁材料的磁性能進(jìn)行了研究。另外，也研究了合金時(shí)效處理對(duì)永磁材料磁性能和取向度的影響。結(jié)果表明，SC工藝制備的合金獲得了希望的柱狀晶結(jié)構(gòu)，但其制備的永磁材料磁性能卻明顯偏低，取向度只有通用熔煉工藝的74%；時(shí)效處理能明顯提高SC工藝制備的永磁材料的磁性能，且其磁性能與通用熔煉工藝制備的永磁材料相當(dāng)。

    Abstract:

    Sm2Co17 rare earth permanent magnets were prepared by a strip casting (SC) technique and general melting process, respectively. Metallographic microstructure and magnetic properties of the permanent magnets prepared by the two techniques were studied. In addition, the effect of aging treatment on the magnetic properties and the degree of orientation of the permanent magnets was studied. The results show that the columnar crystal structure as expected has been obtained from alloys prepared by the strip casting technique. But the magnetic properties of the permanent magnet are obviously lower, and the degree of orientation is 74% as prepared with general melting process. Aging treatment can greatly improve the magnetic properties of magnetic materials by strip casting, and the magnetic properties are similar to that of the permanent magnet prepared by general melting process.

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沈安國(guó),王敬東,張 明,譚福明,李 忭,徐 亮,袁 濤. SC工藝制備Sm2Co17型永磁材料的金相組織與磁性能[J].稀有金屬材料與工程,2013,42(4):865~867.[Shen Anguo, Wang Jingdong, Zhang Ming, Tan Fuming, Li Bian, Xu Liang, Yuan Tao. Metallographic Microstructure and Magnetic Properties of Sm2Co17 Rare Earth Permanent Magnet Material by a Strip Casting Technique[J]. Rare Metal Materials and Engineering,2013,42(4):865~867.]
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  • 收稿日期:2012-04-21
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