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Electrochemical Characterization of Ti5Si3/TiC Nanocomposite Coating in HCl Solution
Liu LL; Xu J; Li ZY(李正阳); Liu, LL (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
2013-04-01
Volume8Issue:4Pages:5086-5101
ISSN1452-3981
AbstractA novel Ti5Si3/TiC nanocomposite coating was successfully engineered onto Ti-6Al-4V alloy substrate by double glow discharge plasma technique. The microstructure of the newly developed nanocomposite coating was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that the nanocomposite coating exhibits cauliflower-like structure composed of Ti5Si3 grains with an average grain size of ~15 nm and irregular TiC nanoparticles located at the boundaries of cauliflower-like architecture. The electrochemical behavior of the nanocomposite coating and the reference materials (i.e., monolithic Ti5Si3 coating and uncoated Ti-6Al-4V alloy) was evaluated in 5 wt.% HCl solution by a variety of electrochemical techniques, including open circuit potential measurement, potentiodynamic polarization, electrochemical impedance spectroscopy and Mott-Schottky analysis. The results revealed that the corrosion resistance of the Ti5Si3/TiC nanocomposite coating is slightly lower than that of the monolithic Ti5Si3 nanocrystalline coating, but obviously higher than that of uncoated Ti-6Al-4V in 5 wt.% HCl solution.
KeywordNanocomposite Coating Electrochemical Impedance Spectroscopy Mott–schottky Analysis
Subject Area损伤、破坏机理和微结构演化
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Indexed BySCI
Language英语
WOS IDWOS:000318217200058
DepartmentMAMYAG激光毛化技术
ClassificationQ3
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47188
Collection先进制造工艺力学重点实验室
Corresponding AuthorLiu, LL (reprint author), Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Liu LL,Xu J,Li ZY,et al. Electrochemical Characterization of Ti5Si3/TiC Nanocomposite Coating in HCl Solution[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2013,8(4):5086-5101
APA Liu LL,Xu J,李正阳,&Liu, LL .(2013).Electrochemical Characterization of Ti5Si3/TiC Nanocomposite Coating in HCl Solution.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,8(4),5086-5101.
MLA Liu LL,et al."Electrochemical Characterization of Ti5Si3/TiC Nanocomposite Coating in HCl Solution".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 8.4(2013):5086-5101.
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