Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions

IMR OpenIR

	Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions
	Wang, ZB; Hu, HX; Zheng, YG; Zheng, YG (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
	2016-12-01
发表期刊	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN	1432-8488
卷号	20 期号:12 页码:3459-3471
摘要	The effects of dissolved oxygen (DO) on the corrosion behavior of pure titanium in acidic fluoride-containing acids (pH = 0.6-2.0) were evaluated by electrochemical methods, such as open circuit potential (OCP) measurements, potentiodynamic polarization tests, and electrochemical impedance spectroscopy (EIS), combined with surface characterization by X-ray photoelectron spectroscopy (XPS). The results showed that DO affected the anodic kinetic parameters, except the passive current density, by decreasing the maximum anodic current density as well as influencing its dependence on pH and the fluoride concentration. However, DO had no detectable contribution to the total cathodic process at potentials in the active region of titanium. The critical fluoride concentration for the corrosion of titanium was consistently determined by means of three kinds of electrochemical methods. The critical value increased with the DO content, and its dependence on pH was also affected by DO, which were attributed to the effects of DO on the anodic parameters. Additionally, multiple corrosion potentials were discovered under some specific conditions with DO, which resulted from the non-negligible contribution of ORR to the total cathodic current density at relatively higher potentials.
部门归属	[wang, z. b. ; hu, h. x. ; zheng, y. g.] chinese acad sci, inst met res, key lab nucl mat & safety assessment, 62 wencui rd, shenyang 110016, peoples r china
关键词	Titanium Dissolved Oxygen Fluoride Ion Potentiodynamic Polarization Kinetic Parameters
学科领域	Electrochemistry
资助者	National Basic Research Program of China (973 Program) [2014CB643304]; National Environmental Corrosion Platform [2005DKA10400]
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/76160
专题	中国科学院金属研究所
通讯作者	Zheng, YG (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Wang, ZB,Hu, HX,Zheng, YG,et al. Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2016,20(12):3459-3471.
APA	Wang, ZB,Hu, HX,Zheng, YG,&Zheng, YG .(2016).Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,20(12),3459-3471.
MLA	Wang, ZB,et al."Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 20.12(2016):3459-3471.