Effects of Mn on the electrochemical corrosion and passivation behavior of CoFeNiMnCr high-entropy alloy system in H2SO4 solution
文献类型：期刊论文
| 作者 | Yang, J.1,2; Wu, J.1,2; Zhang, C. Y.1,2; Zhang, S. D.1; Yang, B. J.1; Emori, W.3; Wang, J. Q.1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-04-05 |
| 卷号 | 819页码:11 |
| 关键词 | High entropy alloy Electrochemical impedance spectroscopy Corrosion Passivation |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2019.152943 |
| 通讯作者 | Wang, J. Q.(jqwang@imr.ac.cn) |
| 英文摘要 | The present work investigates the influence of Mn on the electrochemical corrosion and passivation behaviors of CoFeNiMnCr high-entropy alloys in a 0.1 M H2SO4 solution. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) results showed that the addition of Mn caused a marked difference in the active dissolution regions and active-passive transition regions. It was deduced from EIS and the potential decay results that the alloyed Mn suppressed the passivation processes and increased the chemical dissolution rate of the passive films. By contrast, the alloyed Mn did not affect the protective properties of the passive films of the alloys. Surface analysis indicated that Mn addition had little influence on the composition and thickness of the passive films. Thus the passivation current densities and transpassive potentials of the CoFeNiMnCr high-entropy alloy remained almost unchanged with the addition of Mn. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | National Key Research and Development Program of China[2018YFB1105803] ; National Natural Science Foundation of China[51701214] ; National Natural Science Foundation of China[51771195] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000507378300020 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/136742]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, J. Q. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, J.,Wu, J.,Zhang, C. Y.,et al. Effects of Mn on the electrochemical corrosion and passivation behavior of CoFeNiMnCr high-entropy alloy system in H2SO4 solution[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,819:11. |
| APA | Yang, J..,Wu, J..,Zhang, C. Y..,Zhang, S. D..,Yang, B. J..,...&Wang, J. Q..(2020).Effects of Mn on the electrochemical corrosion and passivation behavior of CoFeNiMnCr high-entropy alloy system in H2SO4 solution.JOURNAL OF ALLOYS AND COMPOUNDS,819,11. |
| MLA | Yang, J.,et al."Effects of Mn on the electrochemical corrosion and passivation behavior of CoFeNiMnCr high-entropy alloy system in H2SO4 solution".JOURNAL OF ALLOYS AND COMPOUNDS 819(2020):11. |
入库方式： OAI收割
来源：金属研究所
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