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Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4)塊體非晶合金的制備及其熱、軟磁性能
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湖南省教育廳科學研究項目(08C880)；湖南省科技廳計劃項目(2008FJ3095)


Preparation, Thermal and Soft Magnetic Properties of Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4) Bulk Amorphous Alloys
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    摘要:

    采用單輥法和銅模鑄造法制備了Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4 at%)合金系的非晶薄帶和非晶棒樣品，并測試了該非晶合金系的差示掃描量熱曲線、X射線衍射圖譜和軟磁性能。結(jié)果表明：少量的Nb或Co替代Fe75Hf3Y2B20中的Fe元素，合金的熱穩(wěn)定性和玻璃形成能力可得到明顯的提高；其中Fe71Nb4Hf3Y2B20的過冷液相區(qū)寬度ΔTx高達75 K，約化玻璃轉(zhuǎn)變溫度Trg為0.58，直徑達4 mm，飽和磁感應(yīng)強度為0.97~1.08 T，該非晶合金同時具有較大的熱穩(wěn)定性、較

    Abstract:

    Amorphous ribbon and rods of Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4) alloys were prepared by the melt-spun and copper mold casting method, respectively. The thermal stability, crystallization, melting behavior and soft magnetic properties were investigated by differential scanning calorimetry (DSC), differential thermal analysis (DTA), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results indicate that the thermal stability and glass-forming ability of Fe75Hf3Y2B20 can be obviously increased via the replacement of Fe by 4 at% Nb or Co element, and the amorphous alloys of Fe71Nb4Hf3Y2B20 exhibits wide supercooled liquid region of 75 K, high glass forming ability of 4 mm and high saturation magnetization of 0.97~1.08 T. The amorphous alloy has the high thermal stability, the better glass-forming ability and soft magnetic properties

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張志純,龍志林,危洪清,李鄉(xiāng)安,彭 建,唐 平. Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4)塊體非晶合金的制備及其熱、軟磁性能[J].稀有金屬材料與工程,2009,38(3):481~484.[Zhang Zhichun, Long Zhilin, Wei Hongqing, Li Xiangan, Peng Jian, Tang Ping. Preparation, Thermal and Soft Magnetic Properties of Fe75-xMxHf3Y2B20(M=Co, Nb; x=0, 4) Bulk Amorphous Alloys[J]. Rare Metal Materials and Engineering,2009,38(3):481~484.]
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  • 收稿日期:2008-07-20
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