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Corrosion mechanisms of Zr-based bulk metallic glass in NaF and NaCl solutions
Qiu, Zhangweijia; Li, Zhengkun; Fu, Huameng; Zhang, Hongwei; Zhu, Zhengwang; Wang, Aimin; Li, Hong; Zhang, Long; Zhang, Haifeng
2020-06-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume46Pages:33-43
AbstractSo far, some investigations related to the corrosion mechanism of Zr-based metallic glasses in solutions containing Cl- have been developed. However, few attentions have been paid to the situation in F-- containing solution. This paper describes the corrosion behaviours of Zr52Al10Ni6Cu32 bulk metallic glass (BMG) in NaF and NaCl aqueous solutions. The corrosion mechanism of Zr-based BMG in F-containing solution was proposed for the first time. It was found that in NaCl solutions, Zr-based BMG samples underwent typical pitting corrosion. Selective dissolution of Zr, Al and enrichment of Cu were observed in corrosion pits. However, corrosion occurred in the form of general breakdown of passive film in NaF solutions. Such difference is interpreted in terms of the binding ability of anions to surrounding molecules, i.e., Cl(- )with loose surrounding water passes through the passive film to cause pitting; F- with a tight surrounding molecules layer absorbs on passive film then coordinates with cations from matrix. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
DOI10.1016/j.jmst.2019.10.043
WOS IDWOS:000525326000004
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82795
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Qiu, Zhangweijia,Li, Zhengkun,Fu, Huameng,et al. Corrosion mechanisms of Zr-based bulk metallic glass in NaF and NaCl solutions[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,46:33-43.
APA Qiu, Zhangweijia.,Li, Zhengkun.,Fu, Huameng.,Zhang, Hongwei.,Zhu, Zhengwang.,...&Zhang, Haifeng.(2020).Corrosion mechanisms of Zr-based bulk metallic glass in NaF and NaCl solutions.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,46,33-43.
MLA Qiu, Zhangweijia,et al."Corrosion mechanisms of Zr-based bulk metallic glass in NaF and NaCl solutions".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 46(2020):33-43.
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