Electrochemical Studies of the Corrosion of Pure Fe, Ni and Cr in Molten (Li,Na,K)F

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	Electrochemical Studies of the Corrosion of Pure Fe, Ni and Cr in Molten (Li,Na,K)F
	Y. X. Xu; Y. L. Wang; C. L. Zeng
	2014
发表期刊	High Temperature Materials and Processes
ISSN	0334-6455
卷号	33 期号:3 页码:269-276
摘要	The corrosion of structural materials is a great challenge for the applications of a molten salt reactor using molten fluorides. In this paper, electrochemical behavior of pure Fe, Ni and Cr has been investigated in molten (Li,Na,K)F at 973 K by potentiodynamic polarization and electrochemical impedance spectroscopy. The experimental results indicated that three metals are all in active state at the corrosion potential, with an increase in the corrosion potential by the following order: Cr, Fe, Ni. The free corrosion current density of Ni is more than one order of magnitude lower than that of Fe and Cr. A Warburg impedance was observed in the impedance plots for the corrosion of Cr, but not for Ni and Fe. Ni is the most stable metal, then Fe and Cr, and the corrosion of Cr is controlled by the diffusion of oxidants in the melt.
部门归属	[xu, y. x. ; wang, y. l. ; zeng, c. l.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; zeng, cl (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; clzeng@imr.ac.cn
关键词	Ni Fe Cr Molten Fluorides Corrosion Electrochemical Techniques Fluoride Salt Chromium
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73458
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. X. Xu,Y. L. Wang,C. L. Zeng. Electrochemical Studies of the Corrosion of Pure Fe, Ni and Cr in Molten (Li,Na,K)F[J]. High Temperature Materials and Processes,2014,33(3):269-276.
APA	Y. X. Xu,Y. L. Wang,&C. L. Zeng.(2014).Electrochemical Studies of the Corrosion of Pure Fe, Ni and Cr in Molten (Li,Na,K)F.High Temperature Materials and Processes,33(3),269-276.
MLA	Y. X. Xu,et al."Electrochemical Studies of the Corrosion of Pure Fe, Ni and Cr in Molten (Li,Na,K)F".High Temperature Materials and Processes 33.3(2014):269-276.