Characterization of stress corrosion crack growth of 304 stainless steel by electrochemical noise and scanning Kelvin probe
文献类型：期刊论文
| 作者 | R. Zhao ; Z. Zhang ; J. B. Shi ; L. Tao ; S. Z. Song |
| 刊名 | Journal of Central South University of Technology
 |
| 出版日期 | 2010 |
| 卷号 | 17期号:1页码:13-18 |
| 关键词 | 304 stainless steel fatigue pre-cracking electrochemical noise stress corrosion cracking (SCC) scanning Kelvin probe stainless-steel high-temperature alloy |
| ISSN号 | 1005-9784 |
| 中文摘要 | The fatigue pre-cracking 304 stainless steel (SS) specimens with lengths of 1.002 mm (L-crack) and 0.575 mm (S-crack) were prepared. Their corrosion behavior was studied by electrochemical noise (EN) in 4 mol/L NaCl + 0.01 mol/L Na(2)S(2)O(3) solution under slow-strain-rate-testing (SSRT) conditions. Moreover, the characteristics of L-crack's surface morphology and potential distribution with scanning Kelvin probe (SKP) before and after SSRT were also discussed. Compared with S-crack, L-crack is propagated and the features of crack propagation can be obtained. After propagation, the noise amplitudes increase with increasing stress and accelerating corrosion, the white noises at low and high frequencies (WL and WH) of the later stage are one order of magnitude larger than that at early stage in the current power spectral densities (PSDs). The potential PSDs also increase, but WH disappears. In addition, the crack propagation can be demonstrated according to variation of probability distribution, surface morphology and potential distribution. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31749]  |
| 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 | R. Zhao,Z. Zhang,J. B. Shi,et al. Characterization of stress corrosion crack growth of 304 stainless steel by electrochemical noise and scanning Kelvin probe[J]. Journal of Central South University of Technology,2010,17(1):13-18. |
| APA | R. Zhao,Z. Zhang,J. B. Shi,L. Tao,&S. Z. Song.(2010).Characterization of stress corrosion crack growth of 304 stainless steel by electrochemical noise and scanning Kelvin probe.Journal of Central South University of Technology,17(1),13-18. |
| MLA | R. Zhao,et al."Characterization of stress corrosion crack growth of 304 stainless steel by electrochemical noise and scanning Kelvin probe".Journal of Central South University of Technology 17.1(2010):13-18. |
入库方式： OAI收割
来源：金属研究所
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