Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62

doi:10.1002/maco.201910937

IMR OpenIR

	Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62
	Zhao, Pingping 1,2; Song, Yingwei 1; Dong, Kaihui 1; Shan, Dayong 1; Han, En-Hou 1
通讯作者	Song, Yingwei(ywsong@imr.ac.cn)
	2019-10-01
发表期刊	MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN	0947-5117
卷号	70 期号:10 页码:1745-1754
摘要	Ti alloys exhibit high potential because of the compact passive film. However, the effect of passive film on galvanic corrosion is not clear. On the one hand, the great potential difference can accelerate the galvanic corrosion of other metals with low potential. On the other hand, the passive film can hinder the electrochemical reactions, inhibiting the galvanic corrosion. To clarify this question, the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62 was studied using zero-resistance ammeter, scanning vibrating electrode technique, scanning electron microscopy, and potentiodynamic polarization measurements. The chemical composition and electrical properties of the passive film on Ti60 were detected using X-ray photoelectron spectroscopy and Mott-Schottky plots. The results indicate the galvanic corrosion of Ti60-H62 coupling is ignorable in spite of the great galvanic potential difference between them. It can be attributed to the low electron donor density of passive film, which inhibits the electron charge transfer process at the film/solution interface, causing the slow cathodic reaction rate on Ti60.
关键词	copper alloy titanium alloy galvanic corrosion passive film electron donor
资助者	National Key Research and Development Program of China
DOI	10.1002/maco.201910937
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFB0702100]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000488990800001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：9[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/321006/135820
专题	中国科学院金属研究所
通讯作者	Song, Yingwei
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat & Engn, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Pingping,Song, Yingwei,Dong, Kaihui,et al. Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2019,70(10):1745-1754.
APA	Zhao, Pingping,Song, Yingwei,Dong, Kaihui,Shan, Dayong,&Han, En-Hou.(2019).Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,70(10),1745-1754.
MLA	Zhao, Pingping,et al."Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 70.10(2019):1745-1754.