| Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62 | |
| Zhao, Pingping1,2; Song, Yingwei1; Dong, Kaihui1; Shan, Dayong1; Han, En-Hou1 | |
| Corresponding Author | Song, Yingwei(ywsong@imr.ac.cn) |
| 2019-10-01 | |
| Source Publication | MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
 |
| ISSN | 0947-5117 |
| Volume | 70Issue:10Pages:1745-1754 |
| Abstract | 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. |
| Keyword | copper alloy titanium alloy galvanic corrosion passive film electron donor |
| Funding Organization | National Key Research and Development Program of China |
| DOI | 10.1002/maco.201910937 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFB0702100] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000488990800001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135820 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Song, Yingwei |
| Affiliation | 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 |
| Recommended Citation 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. |
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