Thermal oxidation effect on corrosion behavior of Zr46Cu37.6Ag8.4Al8 bulk metallic glass

被引：13
|
作者：
Nie, X. P. [1 ,2 ]
Yang, X. H. [3 ]
Ma, Y. [1 ,2 ]
Chen, L. Y. [1 ,2 ]
Yeap, K. B. [4 ]
Zeng, K. Y. [4 ]
Li, D. [5 ]
Pan, J. S. [5 ]
Wang, X. D. [1 ,2 ]
Cao, Q. P. [1 ,2 ]
Ding, S. Q. [1 ,2 ]
Jiang, J. Z. [1 ,2 ,6 ]
机构：
[1] Zhejiang Univ, LNSM, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, ICNSM, Hangzhou 310027, Zhejiang, Peoples R China
[3] Jinhua Coll Profess & Technol, Jinhua 321007, Zhejiang, Peoples R China
[4] Natl Univ Singapore, Dept Mech Engn, Singapore 117675, Singapore
[5] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
[6] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 23009, Peoples R China
来源：
INTERMETALLICS | 2012年 / 22卷
基金：
中国国家自然科学基金;
关键词：
Intermetallics; miscellaneous; Corrosion; Oxidation; Corrosion behavior; Electron microscopy; scanning; RESISTANCE;
D O I：
10.1016/j.intermet.2011.10.013
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：
Oxide films of 0.72 mu m and 1.80 mu m were prepared by thermal oxidation treatments at 441 K and 609 K respectively. The oxidation kinetics of the Zr46Cu37.6Ag8.4Al8 bulk metallic glass has been investigated. The outermost surface of the oxide film formed at 609 k is Cu2O and Al2O3-enriched but ZrO2-depleted. A ZrO2-enriched oxide layer is detected existing at 150-260 nm of the oxide film. The surface oxidation state sheds great influence on the corrosion behavior of Zr-based BMG. The oxide film can hinder the initial electro-dissolution processes during polarization in 0.5 M H2SO4 + 0.01 M NaCl solution. The special structure and composition distribution of the oxide film lead to the modification of the BMG's corrosion behavior. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：84 / 91
页数：8
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