Origin of high glass forming ability of Y-containing FeB-based alloys

被引：15

作者：

Huang, X. M. ^{[1
,2
,3
]}

Wang, X. D. ^{[1
,2
]}

Jiang, J. Z. ^{[1
,2
]}

机构：

[1] Zhejiang Univ, ICNSM, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Lab New Structured Mat, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[3] SW Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 485卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Amorphous materials; EXAFS (extended X-ray absorption fine structure); X-ray diffraction; BULK METALLIC GLASSES;

D O I：

10.1016/j.jallcom.2009.06.049

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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

引用

页码：L35 / L38

页数：4

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