Electrochemical impedance study of the corrosion of Fe-Cr alloys in molten (Li,K)(2)CO3 eutectic mixture
文献类型：期刊论文
| 作者 | Zeng, CL; Wang, W; Niu, Y; Wu, WT |
| 刊名 | HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2
 |
| 出版日期 | 2001 |
| 卷号 | 369-3页码:809-816 |
| 关键词 | (Li,K)(2)CO3 corrosion electrochemical impedance Fe-Cr alloys |
| ISSN号 | 0255-5476 |
| 通讯作者 | Zeng, CL() |
| 英文摘要 | Electrochemical impedance spectroscopy (EIS) together with thermogravimetric techniques were employed to study the corrosion of iron and Fe-Cr alloys containing 5, 10, 20 and 25 wt.% Cr respectively in a molten eutectic (Li,K)(2)CO3 mixture at 650 degreesC. The Nyquist plots for the corrosion of iron and Fe-Cr alloys in the melt are similar, and are all composed of a small semicircle at high frequency and a large semicircle at low frequency. The radius of the semicircle at low frequency, which can be used to evaluate the corrosion resistance of the alloys, is significantly larger for Fe-20Cr and Fe-25Cr than for Fe, Fe-5Cr and Fe-10Cr. The Cr-rich alloys undergo slower corrosion than iron and the Cr-poor alloys: this is further confirmed by the thermogravimetric results and is due to the formation of Cr-rich scales. An equivalent circuit of oxide capacitance in series with the double-layer capacitance was proposed to describe the impedance spectra. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000172513200094 |
| 出版者 | TRANS TECH PUBLICATIONS LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/113322]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zeng, CL |
| 作者单位 | Chinese Acad Sci, Inst Corros & Protect Met, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, CL,Wang, W,Niu, Y,et al. Electrochemical impedance study of the corrosion of Fe-Cr alloys in molten (Li,K)(2)CO3 eutectic mixture[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2,2001,369-3:809-816. |
| APA | Zeng, CL,Wang, W,Niu, Y,&Wu, WT.(2001).Electrochemical impedance study of the corrosion of Fe-Cr alloys in molten (Li,K)(2)CO3 eutectic mixture.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2,369-3,809-816. |
| MLA | Zeng, CL,et al."Electrochemical impedance study of the corrosion of Fe-Cr alloys in molten (Li,K)(2)CO3 eutectic mixture".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2 369-3(2001):809-816. |
入库方式： OAI收割
来源：金属研究所
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