Ductile Fe-based amorphous alloy

被引：11
|
作者：
Kim, Hong-Kyu [1 ]
Lee, Kwang-Bok [1 ]
Lee, Jae-Chul [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 552卷
基金：
新加坡国家研究基金会;
关键词：
Amorphous alloy; Phase separation; Structural disordering; Strain localization; Plasticity; BULK GLASSY ALLOYS; CU-ZR; SHEAR LOCALIZATION; METALLIC-GLASS; PLASTIC-FLOW; DYNAMICS; STRENGTH;
D O I：
10.1016/j.msea.2012.05.059
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Experiments demonstrated that the addition of a minute amount of V to Fe52Co(20-x)B20Si4Nb4Vx amorphous alloy induces atomic-scale phase separation, which dramatically enhances the plasticity. Especially, Fe52Co17.5B20Si4Nb4V2.5 amorphous alloy exhibited a strength of 4.7 GPa and a fracture strain of 8.0%, which is the largest strain reported for Fe-based amorphous alloys. In this study, the structural origin of the enhanced plasticity is explored by examining the role played by the phase separating element on the packing density and strain localization. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：399 / 403
页数：5
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