Metastable phase formation in rapidly quenched Zr80Pt20 alloys:: Linkage to oxygen

被引：0
|
作者：
Sordelet, Daniel [1 ]
Yang, Xiaoyun [1 ]
Rozhkova, Elena [1 ]
Besser, Matthew [1 ]
Kramer, Matthew [1 ]
机构：
[1] Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA 50011 USA
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 32-40期
关键词：
amorphous metals; metallic glasses; crystallization; quasicrystals; diffraction and scattering measurements; phases and equilibria; processing; structure;
D O I：
10.1016/j.jnoncrysol.2007.05.096
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Melt spun Zr80Pt20 ribbons having oxygen contents ranging from < 200 to approximate to 5000 mass ppm are shown to form various metastable phases during quenching. In the presence of sufficient oxygen, a big cube Zr6Pt3O phase forms, but this structure is de-stabilized towards an icosahedral quasicrystalline structure at lower oxygen levels. Further reduction of oxygen promotes increasingly stable Zr-Pt bonds, and a metastable beta-Zr(Pt) structure is formed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：3439 / 3443
页数：5
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