Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles
文献类型：期刊论文
| 作者 | A. N. Chen ; F. H. Cao ; W. J. Liu ; L. Y. Zheng ; Z. Zhang ; J. Q. Zhang ; C. N. Cao |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:1页码:228-240 |
| 关键词 | electrochemical noise shot noise analysis dry-wet cycle zinc alloy simulated acid-rain electrochemical noise atmospheric corrosion pure aluminum exco solution susceptibility (nh4)(2)so4 parameters nacl so2 |
| ISSN号 | 1003-6326 |
| 中文摘要 | The corrosion behaviors of zinc alloy (ZnAl4Cu1) in 3.5% (mass fraction) NaCl, 7.3% (mass fraction) Na2SO4 and simulated acid rain solutions were investigated using electrochemical measurements. The potential noise during dry-wet cycle was monitored and analyzed by fast Fourier transform (FFT), fast wavelet transform (FWT), shot noise theory and stochastic theory. Cumulative probability curves of event frequency f(n) indicate that the corrosion events in the dry cycles are greater than those in the wet cycles. Uniform corrosion was observed in the NaCl solution compared with more localized corrosion in the Na2SO4 solution, which is evidenced by FWT and SEM. Conditional events generation rate r(t) for diffusion controlled reactions decreases with increasing the time. r(t) values for uniform corrosion and diffusion controlled process are the largest in the wet cycle in 3.5% NaCl solution. The values of r(t) for pitting corrosion in Na2SO4 solution are observed to become large during spraying periods, and r(t) for pitting corrosion has the largest value in the Na2SO4 solution. The intergranular corrosion of zinc is serious in simulated acid rain solution. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59895]  |
| 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 | A. N. Chen,F. H. Cao,W. J. Liu,et al. Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles[J]. Transactions of Nonferrous Metals Society of China,2012,22(1):228-240. |
| APA | A. N. Chen.,F. H. Cao.,W. J. Liu.,L. Y. Zheng.,Z. Zhang.,...&C. N. Cao.(2012).Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles.Transactions of Nonferrous Metals Society of China,22(1),228-240. |
| MLA | A. N. Chen,et al."Shot noise analysis on corrosion behavior of zinc alloy (ZnAl4Cu1) under dry-wet cycles".Transactions of Nonferrous Metals Society of China 22.1(2012):228-240. |
入库方式： OAI收割
来源：金属研究所
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