Oxygen segregation in the Zr-based bulk metallic glasses

被引：15

作者：

Cheng, Jia-Lin ^{[1
,2
]}

Chen, Guang ^{[1
]}

Zhang, Zhong-Wu ^{[3
]}

Wang, Zhang-Zhong ^{[2
]}

Wang, Zai-You ^{[2
]}

Li, Xiao-Quan ^{[2
]}

机构：

[1] Nanjing Univ Sci & Technol, Minist Educ, Engn Res Ctr Mat Behav & Design, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Inst Technol, Sch Mat Sci & Engn, Nanjing 211167, Jiangsu, Peoples R China

[3] Harbin Engn Univ, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

来源：

INTERMETALLICS | 2014年 / 49卷

基金：

高等学校博士学科点专项科研基金;

关键词：

Composites; Glasses; metallic; Mechanical properties at ambient temperature; Microstructure; PHASE-FORMATION; CRYSTALLIZATION; IMPURITY;

D O I：

10.1016/j.intermet.2014.01.002

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：

Effects of oxygen on the glass formation of Zr41.2Ti13.8Cu12.5Ni10Be22.5 and Zr39.6Ti33.9Nb7.6Ni6.4Be12.5 alloys were studied. Our results indicated that oxygen is segregated in the precipitated Zr3NiO-type and beta-Zr crystals, respectively, making the glass matrices keep good glass formation. Interestingly, as compared with the oxygen-free sample, the Zr39.6Ti33.9Nb7.6Ni6.4Be12.5 added with 2000 ppm oxygen exhibits much higher yield stress with only a little ductility loses. This founding gives us a new clue to avoid the detriment of oxygen to the to the glass formation just by designing appropriate glass composites. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：149 / 153

页数：5

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