Origin of high glass forming ability of Y-containing FeB-based alloys
Origin of high glass forming ability of Y-containing FeB-based alloys
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含Y FeB基合金高玻璃形成能力的起源
DOI：
10.1016/j.jallcom.2009.06.049
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发表时间：
2009-10-19
影响因子：
6.2
通讯作者：
Jiang, J. Z.
中科院分区：
文献类型：
--
作者：
Huang, X. M.;Wang, X. D.;Jiang, J. Z.
利用扩展的 X 射线吸收精细结构，三元 Fe-Y-B 体系的高玻璃形成能力 (GFA) 的起源已成功与局部原子结构相关联。经证实，与进一步添加 Y（高达 6 at.%）的 Fe-B 二元合金中的 Fe3B 相相比，少量大尺寸 Y 原子的掺入促进了复杂 B-6(Fe,Y)(23) 相的形成。过度的内应变导致B-6(Fe,Y)(23)类相的畸变，最终有利于凝固过程中非晶态的形成。因此，GFA 从 0·025 mm Fe78B22 薄带增加到 2 mm Fe72Y6B22 棒。 (C) 2009 Elsevier B V 版权所有
Using extended X-ray absorption fine structure, the origin of high glass forming ability (GFA) for the ternary Fe-Y-B system has been successfully correlated with local at;mic structure. It is confirmed that the incorporation of minor large-sized Y atoms promotes the formation of complex B-6(Fe,Y)(23) phase, compared with Fe3B phase in the Fe-B binary alloy With further addition of Y (up to 6 at.%). excessive internal strain leads to the distortion of B-6(Fe,Y)(23)-like phase and eventually favors the formation of amorphous state during solidification. Consequently, GFA increases from 0 025 mm Fe78B22 thin ribbon to 2 mm Fe72Y6B22 rod. (C) 2009 Elsevier B V All rights reserved