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首页> 外文期刊>Journal of Materials Science >The effect of copper alloying additions on the crystallization of an amorphous Fe-Si-B alloy
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The effect of copper alloying additions on the crystallization of an amorphous Fe-Si-B alloy

机译：铜合金添加对非晶态Fe-Si-B合金结晶的影响

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摘要

The effect of Cu alloying additions on the crystallization of Fe-Si-B alloy was studied. The selected alloys compositions are Fe77.5Si13.5B9 and Fe76.5Si13.5B9Cu1. By comparing their crystallization temperatures, activation energy of crystallization, phase formation and microstructural evolution after heat treatment, the effect of Cu alloying additions was determined. It was found that Cu alloying additions reduced the crystallization temperature as well as the activation energy of the crystallization. Although the phases formed in both alloys were Fe3Si and Fe3B phases the microstructures were dramatically different: a dendritic microstructure was observed in the case of the Fe-Si-B alloy, while spheriodal crystals around 100 nm in size were observed in the case of the Fe-Si-B-Cu alloy. Cu alloying addition increased the saturation magnetization during primary crystallization whereas it decreased the saturation magnetization after secondary crystallization began. Interestingly, for both alloys the same trends of the magnetization and coercivity measurements were observed except that the extent of the changes were higher in the case of the Fe-Si-B-Cu alloy than that of the Fe-Si-B alloy.
机译：研究了铜合金添加对Fe-Si-B合金结晶的影响。选择的合金成分为Fe77.5Si13.5B9和Fe76.5Si13.5B9Cu1。通过比较它们的结晶温度，结晶活化能，相形成和热处理后的微观结构演变，确定了铜合金添加的影响。发现铜合金添加降低了结晶温度以及结晶的活化能。尽管两种合金中形成的相均为Fe3Si和Fe3B相，但其微观结构却截然不同：对于Fe-Si-B合金，观察到的是树枝状显微组织，而对于Fe-Si-B合金，则观察到了约100 nm的球状晶体。 Fe-Si-B-Cu合金。铜合金添加增加了一次结晶过程中的饱和磁化强度，而降低了二次结晶开始后的饱和磁化强度。有趣的是，对于两种合金，观察到相同的磁化强度和矫顽力测量趋势，不同之处在于，Fe-Si-B-Cu合金的变化程度高于Fe-Si-B-B合金的变化程度。

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