Long-term hot corrosion behavior of Ni-based superalloy M38G using electrochemical impedance spectroscopy
文献类型：期刊论文
| 作者 | C. L. Zeng ; J. Li |
| 刊名 | High Temperature Materials and Processes
 |
| 出版日期 | 2006 |
| 卷号 | 25期号:4页码:187-195 |
| 关键词 | Ni-based superalloy M38G (Na K)(2)SO4 hot corrosion electrochemical impedance molten-salt corrosion na2so4 film degrees-c electrode air |
| ISSN号 | 0334-6455 |
| 中文摘要 | Hot corrosion behavior of the Ni-based superalloy M38G covered with a film of fused 0.9Na(2)SO(4)-0.1K(2)SO(4)(mol%) at 1173K in air for 1500h has been examined by using electrochemical impedance technique. The impedance spectra of the alloy presented the characteristics of two capacitive loops during experimental periods of time, but the impedance tended to decrease with time. The alloy could form Cr-rich oxide scale, which, however, degraded gradually mainly due to fluxing in the melt. The low-frequency impedance spectra represented the responses from the scale. Thus an equivalent circuit of oxide capacitance in series with electrochemical double-layer capacitance was proposed to describe the hot corrosion of the alloy, and the electrochemical parameters in the equivalent circuit were calculated. Hot corrosion mechanism of the alloy was also discussed in accordance with the changes of some parameters. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34672]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. L. Zeng,J. Li. Long-term hot corrosion behavior of Ni-based superalloy M38G using electrochemical impedance spectroscopy[J]. High Temperature Materials and Processes,2006,25(4):187-195. |
| APA | C. L. Zeng,&J. Li.(2006).Long-term hot corrosion behavior of Ni-based superalloy M38G using electrochemical impedance spectroscopy.High Temperature Materials and Processes,25(4),187-195. |
| MLA | C. L. Zeng,et al."Long-term hot corrosion behavior of Ni-based superalloy M38G using electrochemical impedance spectroscopy".High Temperature Materials and Processes 25.4(2006):187-195. |
入库方式： OAI收割
来源：金属研究所
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