Amorphous alloy formation by mechanical alloying and consecutive heat treatment in Fe50B50 powder mixture
Amorphous alloy formation by mechanical alloying and consecutive heat treatment in Fe50B50 powder mixture
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Fe50B50 粉末混合物中机械合金化和连续热处理形成非晶合金
DOI：
10.1063/1.359522
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发表时间：
1995
影响因子：
3.2
通讯作者：
G. Vincze
中科院分区：
文献类型：
--
作者：
J. Balogh;T. Kémény;I. Vincze;L. Bujdosó;L. Tóth;G. Vincze
在可控气氛振动磨中对纯Fe和B的等原子组成粉末混合物进行机械合金化。通过穆斯堡尔谱和透射电子显微镜建立了非晶合金相的形成。用穆斯堡尔谱研究了合金化过程中平均硼浓度的变化和非晶相的均匀性。在研磨过程的早期阶段，观察到宽的浓度分布（从20至50原子% B）。进一步研磨后，无定形组分的平均B浓度逐渐增加，浓度不均匀性降低。通过热处理研磨的粉末混合物可以进一步提高非晶相的B浓度。本研究中获得的硼含量最高的合金是Fe 60 B40。
Equiatomic composition powder mixture of pure Fe and B was mechanically alloyed in a controlled atmosphere vibration mill. Amorphous alloy phase formation was established by Mossbauer spectroscopy and by transmission electron microscopy. The variation of the average boron concentration and the homogeneity of the amorphous phase during the alloying process was followed by Mossbauer spectroscopy. At the early stage of the milling process a broad concentration distribution (from 20 to 50 at. % B) was observed. Upon further milling the average B concentration of the amorphous component was gradually enhanced and the concentration heterogeneity decreased. The B concentration of the amorphous phase could be further enhanced by heat treating the milled powder mixture. The highest boron content alloy attained in this study is Fe60B40.