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

页码：3439 / 3443

页数：5

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