IMR OpenIR
Understanding the electrochemical behavior of bulk-synthesized MgZn2 intermetallic compound in aqueous NaCl solutions as a function of pH
Ikeuba, Alexander I.; Kou, Fujun; Duan, Haowei; Zhang, Bo; Wang, Jianqiu; Han, En-Hou; Ke, Wei
2019-04-01
Source PublicationJOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN1432-8488
Volume23Issue:4Pages:1165-1177
AbstractThe electrochemical behavior of a bulk-synthesized MgZn2 intermetallic compound in aerated 0.1M NaCl solutions has been studied as a function of pH and applied potential using polarization techniques, electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), and focused ion beam-transmission electron microscopy (FIB-TEM). The anodic activity of MgZn2 is seen to decrease with an increase in pH value. Polarization tests reveal two limiting current densities in pH4 solution at relatively high and low potentials. At pH12, passivity is observed with a lower limiting current density compared to those observed at pH4. The corrosion film formed after potentiostatic polarization in the pH4 solution is composed of a bilayer at a less negative potential and a single layer at a more negative potential. In the case of pH12 solution, a protective compact bilayer film is formed irrespective of the potential within the passive zone. Overall, the corrosion mechanism of MgZn2 is by early dissolution of Mg leading to a Zn-enriched surface whose subsequent dissolution depends on the value of the applied potential.
KeywordMgZn2 Intermetallic compound Corrosion EIS XPS FIB-TEM
Indexed BySCI
Language英语
WOS IDWOS:000463866900011
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81216
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Ikeuba, Alexander I.,Kou, Fujun,Duan, Haowei,et al. Understanding the electrochemical behavior of bulk-synthesized MgZn2 intermetallic compound in aqueous NaCl solutions as a function of pH[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2019,23(4):1165-1177.
APA Ikeuba, Alexander I..,Kou, Fujun.,Duan, Haowei.,Zhang, Bo.,Wang, Jianqiu.,...&Ke, Wei.(2019).Understanding the electrochemical behavior of bulk-synthesized MgZn2 intermetallic compound in aqueous NaCl solutions as a function of pH.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,23(4),1165-1177.
MLA Ikeuba, Alexander I.,et al."Understanding the electrochemical behavior of bulk-synthesized MgZn2 intermetallic compound in aqueous NaCl solutions as a function of pH".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 23.4(2019):1165-1177.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ikeuba, Alexander I.]'s Articles
[Kou, Fujun]'s Articles
[Duan, Haowei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ikeuba, Alexander I.]'s Articles
[Kou, Fujun]'s Articles
[Duan, Haowei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ikeuba, Alexander I.]'s Articles
[Kou, Fujun]'s Articles
[Duan, Haowei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.