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Nb對Fe-Co基合金非晶形成能力及磁性能的影響
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國家自然科學(xué)基金（50671059）


Effect of Nb Addition on Glass-Forming Ability and Magnetic Properties of Fe-Co Based Alloy
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    摘要:

    利用銅模吸鑄法制備(Fe0.5Co0.5)71-xNbxZr3Nd4B22(x=0~10)系塊體合金，研究合金元素Nb的添加對該體系合金非晶形成能力(GFA)和磁性能的影響。結(jié)果表明，適當(dāng)Nb的添加能有效提高合金的非晶形成能力。當(dāng)Nb含量為5at%時，可獲得具有完全非晶結(jié)構(gòu)的塊體非晶合金，該合金呈現(xiàn)典型的軟磁性能，飽和磁化強度(Ms)為79 Am2/kg；合金的晶化溫度(Tx)為957 K，晶化激活能E為538.30 kJ/mol。

    Abstract:

    The (Fe0.5Co0.5)71-xNbxZr3Nd4B22 bulk alloys (x=0-10) were prepared by suction casting into a copper mould. The effects of Nb addition on glass-forming ability (GFA) and magnetic properties of the alloys were investigated. Results show that proper addition of Nb can increase the GFA of the alloy effectively. When the Nb content reached 5at%, a new bulk amorphous alloy, (Fe0.5Co0.5)66Nb5Zr3Nd4B22 with fully amorphous structure was obtained. The amorphous alloy exhibits typical soft magnetic property, and the saturation magnetization (Ms) is 79 Am2/kg. Its crystallization temperature (Tx) and crystallization activation energy of the alloy are 957 K and 538.30 kJ/mol, respectively.

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吳勝軍,徐 暉,譚曉華,蔡平平,滿 華. Nb對Fe-Co基合金非晶形成能力及磁性能的影響[J].稀有金屬材料與工程,2010,39(7):1306~1309.[Wu Shengjun, Xu Hui, Tan Xiaohua, Cai Pingping, Man Hua. Effect of Nb Addition on Glass-Forming Ability and Magnetic Properties of Fe-Co Based Alloy[J]. Rare Metal Materials and Engineering,2010,39(7):1306~1309.]
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  • 收稿日期:2009-06-18
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