Temperature induced cathode-anode reversal behavior of TA2-304 L galvanic couple in simulated spent fuel reprocessing media

doi:10.1016/j.electacta.2023.143168

IMR OpenIR

	Temperature induced cathode-anode reversal behavior of TA2-304 L galvanic couple in simulated spent fuel reprocessing media
	Tan, K. D.1,2; Liu, Z.1,2; Zhang, L. M.1,3; Liu, C. C.1; Ma, A. L.1; Zheng, Y. G.1
通讯作者	Zhang, L. M.(lmzhang14s@imr.ac.cn) ; Zheng, Y. G.(ygzheng@imr.ac.cn)
	2023-11-10
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	468 页码:13
摘要	Galvanic corrosion is prevalent throughout various stages of spent fuel reprocessing, and plays a crucial role in the corrosion failure of equipment materials due to its pronounced local corrosive effects. Nevertheless, there is a scarcity of systematic investigations regarding the impact of temperature on the corrosion mechanism of galvanic couples in simulated spent fuel reprocessing media. This study aims to explore the electrochemical behavior and passive film characteristics of TA2-304 L galvanic couple immersed in nitric acid solutions at different temperatures. Relevant results indicated that temperature significantly affected the galvanic corrosion behavior of TA2-304 L couple in nitric acid. The galvanic couple demonstrated a notable reversal in cathodic and anodic polarity with the rising temperature, which was closely related to the changed corrosion mechanism of 304 L SS from superior passivation performance to severe intergranular corrosion. Meanwhile, a critical temperature phenomenon was observed for TA2, below which there exhibited a monotonically decreased corrosion resistance with the increase in temperature. However, an improved corrosion resistance was found as the temperature rose to 120 degrees C, which could be associated with the decreased oxidative properties of nitric acid because of the variation in electrochemical/chemical reactions. Additionally, the relationship between corrosion rate and temperature of both 304 L SS and TA2 was created, and the activation energy was calculated to stress the influence of temperature on the corrosion of both materials. Eventually, the galvanic mechanism of TA2-304 L couple with temperature in nitric acid was proposed.
关键词	Galvanic corrosion Spent fuel reprocessing Electrochemical behavior Passive film characteristics Critical temperature
资助者	National Natural Science Foundation of China ; IMR Innovation Fund ; LingChuang Research Project of China National Nuclear Corporation
DOI	10.1016/j.electacta.2023.143168
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52101105] ; National Natural Science Foundation of China[52373321] ; IMR Innovation Fund[2023-PY03] ; LingChuang Research Project of China National Nuclear Corporation[CNNC-LCKY-202274]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:001080852700001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179440
专题	中国科学院金属研究所
通讯作者	Zhang, L. M.; Zheng, Y. G.
作者单位	1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Ecole Natl Super Chim Paris, Chim ParisTech, 11 Rue Pierre & Marie Curie, F-75005 Paris, France
推荐引用方式 GB/T 7714	Tan, K. D.,Liu, Z.,Zhang, L. M.,et al. Temperature induced cathode-anode reversal behavior of TA2-304 L galvanic couple in simulated spent fuel reprocessing media[J]. ELECTROCHIMICA ACTA,2023,468:13.
APA	Tan, K. D.,Liu, Z.,Zhang, L. M.,Liu, C. C.,Ma, A. L.,&Zheng, Y. G..(2023).Temperature induced cathode-anode reversal behavior of TA2-304 L galvanic couple in simulated spent fuel reprocessing media.ELECTROCHIMICA ACTA,468,13.
MLA	Tan, K. D.,et al."Temperature induced cathode-anode reversal behavior of TA2-304 L galvanic couple in simulated spent fuel reprocessing media".ELECTROCHIMICA ACTA 468(2023):13.