Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy
文献类型：期刊论文
| 作者 | Zhao Pingping2; Song Yingwei1,2; Dong Kaihui1,2; Han En-Hou1,2 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2023-07-11 |
| 卷号 | 59期号:7页码:939-946 |
| 关键词 | titanium alloy electrochemical corrosion synergistic effect passive film ion |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2021.00266 |
| 通讯作者 | Song Yingwei(ywsong@imr.ac.cn) |
| 英文摘要 | Due to the compact passive film, titanium alloys exhibit excellent corrosion resistance. However, during practical applications, the passive film is inevitably damaged by aggressive ions. Among the common ions, F- is the most harmful to the passive film because of its high complexation with Ti. However, the destructiveness of F- varies with pH. Moreover, there are inhibitory ions that reduce the aggressiveness of F-. The acceleration effects of H+ and F- as well as the inhibition effect of Fe3+ on the corrosion behavior of TC4 alloy were examined in this work using electrochemical polarization curves measurements and electrochemical impedance spectroscopy (EIS). The results reveal that whereas H+ has slight destructive effect on the passive film, F- has a considerable aggressive effect. In particular, F- and H+ work synergistically to accelerate the corrosion of the TC4 alloy. The addition of Fe3+ can somewhat reduce corrosion of the TC4 alloy. This can be attributable to the fact that the faster cathodic reduction caused by Fe3+ moves the anodic curves from active-passive region to passive region. Meanwhile, F- is consumed by forming a compound with Fe3+, which mitigates the corrosive effect of F- on passive film. |
| 资助项目 | Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[311021013] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001007541900009 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178459]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Song Yingwei |
| 作者单位 | 1.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Pingping,Song Yingwei,Dong Kaihui,et al. Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy[J]. ACTA METALLURGICA SINICA,2023,59(7):939-946. |
| APA | Zhao Pingping,Song Yingwei,Dong Kaihui,&Han En-Hou.(2023).Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy.ACTA METALLURGICA SINICA,59(7),939-946. |
| MLA | Zhao Pingping,et al."Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy".ACTA METALLURGICA SINICA 59.7(2023):939-946. |
入库方式： OAI收割
来源：金属研究所
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