Influence of yttrium addition on the glass forming ability in Cu-Zr-Al alloys

被引：14
|
作者：
Zhang, Y. [1 ]
Chen, J. [1 ]
Chen, G. L. [1 ]
Liu, Xt [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 483-84卷 / 1-2 C期
基金：
中国国家自然科学基金;
关键词：
glass forming ability; yttrium; atomic packing efficiency; ductility;
D O I：
10.1016/j.msea.2006.09.177
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of yttrium addition on the glass forming ability and mechanical properties of (Cu(0.48)Zr(0.48)Al(0.04))(100-x)Y(x) (numbers indicate at.%) alloys are investigated. It is found that the liquidus temperature does not change significantly with yttrium addition. The atomic level strain energy plays a role in destabilizing the competitive crystal phases. The atomic strain energy is closely related to the atomic packing efficiency of the precipitated crystalline phases. A small amount of yttrium addition increases the yield strength and slightly decreases the room temperature ductility. (C) 2007 Published by Elsevier B.V.
引用
收藏
页码：235 / 238
页数：4
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