A Centimeter-Sized Quaternary Ti-Zr-Be-Ag Bulk Metallic Glass

被引：12
|
作者：
Zhao, S. F. [1 ]
Shao, Y. [1 ]
Gong, P. [1 ]
Yao, K. F. [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2014年 / 2014卷
关键词：
FORMING ABILITY; MECHANICAL-PROPERTIES; ELEMENTS;
D O I：
10.1155/2014/192187
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel centimeter-sized Ti-based bulk metallic glass (BMG) was developed by the addition of Ag in the ternary Ti41Zr25Be34 glassy alloy. By replacing Be with Ag, the glass forming ability (GFA), the yield strength, and the supercooled liquid temperature of the quaternary Ti41Zr25Be34-xAgx (x = 2, 4, 6, 8 at.%) glassy alloys have been obviously enhanced. Among the developed Ti-Zr-Be-Ag alloy systems, the Ti41Zr25Be28Ag6 alloy possesses the largest critical diameter (D-max) of 10 mm, while the yield strength is also enhanced to 1961 MPa, which is much larger than that of Ti41Zr25Be34 (1755 MPa) alloy. The experimental results show that Ag is an effective element for improving the GFA and the yield strength of Ti-Zr-Be glassy alloy.
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页数：5
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