Structural and mechanical properties of a Cu-based bulk metallic glass with two oxygen levels

被引：9
|
作者：
Du, Y. L. [1 ,2 ,3 ]
Xu, H. W. [1 ,2 ,3 ]
Chen, G. [1 ,2 ,3 ]
Deng, Y. [4 ,5 ]
机构：
[1] Nanjing Univ Sci & Technol, Minist Educ, Engn Res Ctr Mat Behav & Design, Nanjing 210094, Jiangsu, Peoples R China
[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China
[3] Jiangsu Inst Adv Mat, Danyang 212300, Jiangsu, Peoples R China
[4] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[5] Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Jiangsu, Peoples R China
来源：
INTERMETALLICS | 2012年 / 30卷
关键词：
Glasses; metallic; Mechanical testing; PHASE-FORMATION; ALLOYS; BEHAVIOR;
D O I：
10.1016/j.intermet.2012.03.028
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：
In this work, a new method to decrease the oxygen content in BMGs was proposed. Cu45Zr48Al7 bulk metallic glasses (BMGs) with two oxygen levels were prepared by adjusting the preparation process. The as-prepared Cu45Zr48Al7 BMG containing lower oxygen concentration exhibits larger plastic deformation than that containing higher level of oxygen. The fracture surface. was studied by SEM to reveal the fracture mechanism. The effect of oxygen on the local atomic structure of Cu45Zr48Al7 BMGs was studied by TEM. From the present work, the effects of oxygen on the structural and mechanical properties of Cu45Zr48Al7 BMGs were clearly revealed. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：90 / 93
页数：4
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