Effects of Cu, Fe and Co addition on the glass-forming ability and mechanical properties of Zr-Al-Ni bulk metallic glasses

被引：12

作者：

Li YanHui ^{[1
]}

Zhang Wei ^{[1
,2
]}

Dong Chuang ^{[1
]}

Makino, Akihiro ^{[2
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2012年 / 55卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

bulk metallic glasses; glass-forming ability; mechanical properties; Zr-Al-Ni alloys; MAGNETIC-PROPERTIES; AMORPHOUS-ALLOYS; DIAMETER; MM;

D O I：

10.1007/s11433-012-4919-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermal stability, glass-forming ability (GFA) and mechanical properties of Zr60Al15Ni25-x TM (x) (TM = Cu, Fe and Co, x = 0-10) bulk metallic glasses (BMGs) were systematically investigated. Additional 5-10 at.% Cu greatly enhances the thermal stability and GFA of the base alloy. Zr60Al15Ni15Cu10 BMG exhibits the largest supercooled liquid region of 104 K and critical diameter of 18 mm. However, addition of 5-10 at.% Fe or Co decrease the thermal stability and GFA. In addition, the plasticity of the BMG can be improved by adding of Cu, while the strength is decreased slightly. Zr60Al15Ni20Cu5 BMG has the largest plastic strain of 5.5% with a yield stress of 1755 MPa and Young's modulus of 83 GPa. Addition of Co brings an increase of strength but a lower of plasticity, and additional Fe reduces the strength and plasticity simultaneously.

引用

页码：2367 / 2371

页数：5

共 50 条

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