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Corrosion behavior of a ZrCN coated Ti alloy with potential application as a bipolar plate for proton exchange membrane fuel cell
Xu J; Huang HJ; Li ZY(李正阳); Xu S; Tao HL; Munroe P; Xie ZH; Xu, J (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.; Xie, ZH (reprint author), Wuhan Inst Technol, Sch Mech & Elect Engn, 693 Xiongchu Ave, Wuhan 430073, Peoples R China.
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
2016-04-05
Volume663Pages:718-730
ISSN1873-4669
AbstractTo improve the corrosion resistance, surface electrical conductivity and wettability of Ti-6Al-4V used in polymer electrolyte membrane fuel cell (PEMFC), a ZrCN nanocrystalline coating was deposited on Ti-6Al-4V substrate using double cathode glow discharge technique. The new coating exhibited a nanocomposite structure, consisting of amorphous C, CNx and nanocrystalline ZrCN. The effect of the HF concentrations on the corrosion behavior of the coating was investigated by potentiodynamic, potentiostatic polarizations and electrochemical impedance spectroscopy (EIS) in a simulated the operating conditions of a PEMFC. With increasing HF concentrations, the corrosion potential (E-corr) decreased and the corrosion current density (i(corr)) of the ZrCN coating increased, indicating that corrosion resistance decreased with the increase of HF concentrations. However, at any given concentration of HF, the corrosion resistance of the ZrCN coating was significantly higher than that of uncoated Ti-6Al-4V. The results of EIS measurements showed that with increasing the concentration of HF, the resistance of the passive film (R-b) formed on the ZrCN coating decreased slightly, being of the order of magnitude of similar to 10(7) Omega cm(2), which was an improvement by four orders of magnitude compared to uncoated Ti-6Al-4V. At a compaction force of 140 N cm(-2), no perceptible difference in the interfacial contact resistance (ICR) of ZrCN-coated Ti-6Al-4V was observed before and after potentiostatic polarization for 120 min, and its ICR values were reduced by one order of magnitude in comparison to that of uncoated Ti-6Al-4V. Moreover, ZrCN-coated Ti-6Al-4V exhibited a much low surface wettability than uncoated Ti-6Al-4V alloy, which was beneficial for both water management and improving corrosion resistance. (C) 2015 Elsevier B.V. All rights reserved.
KeywordPolymer Electrolyte Membrane Fuel Cell (Pemfc) Bipolar Plate Titanium Alloy Zrnc Coating Corrosion Resistance
DOI10.1016/j.jallcom.2015.12.197
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000369060200098
WOS KeywordSTAINLESS-STEEL ; SPUTTER-DEPOSITION ; FILMS ; RESISTANCE ; COATINGS ; PEMFC ; COMPOSITE ; POWER ; 316L ; PH
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationThe authors acknowledge the financial support of the National Natural Science Foundation of China under Grant No. 51374130, the integration of production, teaching and research project of Shunde under Grant No. 2014CXY07 and the Australian Research Council Discovery Project under Grant No. DP150102417.
DepartmentMAMYAG激光毛化技术
Classification一类
RankingFalse
Citation statistics
Cited Times:28[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58659
Collection先进制造工艺力学重点实验室
Corresponding AuthorXu, J (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.; Xie, ZH (reprint author), Wuhan Inst Technol, Sch Mech & Elect Engn, 693 Xiongchu Ave, Wuhan 430073, Peoples R China.
Recommended Citation
GB/T 7714
Xu J,Huang HJ,Li ZY,et al. Corrosion behavior of a ZrCN coated Ti alloy with potential application as a bipolar plate for proton exchange membrane fuel cell[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,663:718-730.
APA Xu J.,Huang HJ.,李正阳.,Xu S.,Tao HL.,...&Xie, ZH .(2016).Corrosion behavior of a ZrCN coated Ti alloy with potential application as a bipolar plate for proton exchange membrane fuel cell.JOURNAL OF ALLOYS AND COMPOUNDS,663,718-730.
MLA Xu J,et al."Corrosion behavior of a ZrCN coated Ti alloy with potential application as a bipolar plate for proton exchange membrane fuel cell".JOURNAL OF ALLOYS AND COMPOUNDS 663(2016):718-730.
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