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

被引：30
|
作者：
Li, Y. H. [2 ,3 ]
Zhang, W. [1 ,2 ]
Dong, C. [2 ]
Qiang, J. B. [2 ]
Fukuhara, M. [1 ]
Makino, A. [1 ]
Inoue, A. [4 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
[3] Tohoku Univ, Grad Sch, Sendai, Miyagi 9808577, Japan
[4] Tohoku Univ, WPI, Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 29-30期
关键词：
Bulk metallic glasses; Zr-based alloys; Glass-forming ability; Mechanical properties; Corrosion resistance; SUPERCOOLED LIQUID; THERMAL-STABILITY; COPPER MOLD; NB ALLOYS; BEHAVIOR; TI; MICROSTRUCTURE; COMPOSITES; CONFUSION; STRENGTH;
D O I：
10.1016/j.msea.2011.07.077
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The thermal stability, glass-forming ability (GFA), mechanical properties and corrosion resistance of Zr60Cu25-xAl15Nix (x = 0-25 at.%) bulk metallic glasses (BMGs) were systematically investigated. The additional Ni greatly enhances the thermal stability and GFA of BMGs. For alloy with x = 15, a fully glassy rod with a critical diameter up to 18 mm can be obtained by copper mold casting. In addition, the strength and plasticity of BMGs are effectively improved by adding Ni, and they show remarkable correlations with glass transition temperature and Poisson's ratio or GIB value, respectively. A Zr60Cu5Al15Ni20 BMG exhibits largest compressive plastic strain of 5.5%, yielding strength of 1755 MPa and Young's modulus of 83 GPa at ambient temperature. Moreover, the electrochemical potentiodynamic polarization curves demonstrate that replacement of Cu by Ni improves the corrosion resistance in chloride-ion-containing solutions significantly. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：8551 / 8556
页数：6
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