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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >A study on nanocrystallization of alloy Fe_(73)Cu_1Nb_(1.5)V_2Si_(13.5)B_9 by high-energy ball milling
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A study on nanocrystallization of alloy Fe_(73)Cu_1Nb_(1.5)V_2Si_(13.5)B_9 by high-energy ball milling

机译：高能球磨法对Fe_（73）Cu_1Nb_（1.5）V_2Si_（13.5）B_9合金的纳米晶化研究

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摘要

In order to lower the price of Finemet alloy, a new nanocrystalline alloy was developed, in which Nb was partly replaced by V. This paper focused on the study of its nanocrystallization induced by high-energy ball milling. It was shown that after milling for 3 h or so, uniformly distributed nanocrystalline phase alpha-Fe(Si, B, V, Nb, Cu) began to form. The milling time required for the nanocrystallization of the amorphous alloy upon ball milling depended very much on milling intensity. The higher the intensity, the shorter the milling time. After full crystallization a complex solid solution alpha-Fe(Si, B, V, Nb, Cu) was obtained. The crystallization process is polymorphous and not primarily observed during conventional thermal annealing. The kinetics of the mechanically induced crystallization of amorphous Fe_(73)Cu_1Nb_(1.5)V_2Si_(13)B_9 alloy may be described by JMA model. The value of Avrami exponent n was 1.53, implying a zero-nucleation rate and crystals growth in all shapes from very small dimensions; the intrinsic factors of controlling the mechanically induced crystallization of the amorphous alloy Fe_(73)Cu_1Nb_(1.5)V_2Si_(13)B_9 may be the deformation and local temperature rise.
机译：为了降低Finemet合金的价格，开发了一种新的纳米晶合金，其中Nb部分被V取代。本文主要研究高能球磨引起的纳米晶化。结果表明，研磨3 h左右后，均匀分布的纳米晶相α-Fe（Si，B，V，Nb，Cu）开始形成。球磨时非晶态合金纳米晶化所需的研磨时间在很大程度上取决于研磨强度。强度越高，研磨时间越短。完全结晶后，获得复杂的固溶体α-Fe（Si，B，V，Nb，Cu）。结晶过程是多晶的，在常规的热退火过程中主要没有观察到。可以通过JMA模型描述非晶态Fe_（73）Cu_1Nb_（1.5）V_2Si_（13）B_9合金的机械诱导结晶动力学。 Avrami指数n的值为1.53，这意味着零形核速率和很小尺寸的所有形状的晶体生长。控制非晶态合金Fe_（73）Cu_1Nb_（1.5）V_2Si_（13）B_9的机械诱导结晶的内在因素可能是变形和局部温度升高。

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