Effect of cavitation on corrosion behavior of 20SiMn low-alloy steel in 3% sodium chloride solution
文献类型：期刊论文
| 作者 | S. Z. Luo ; Y. G. Zheng ; M. C. Li ; Z. M. Yao ; W. Ke |
| 刊名 | Corrosion
 |
| 出版日期 | 2003 |
| 卷号 | 59期号:7页码:597-605 |
| 关键词 | 20SiMn low-alloy steel cavitation corrosion electrochemical impedance spectroscopy linear polarization resistance polarization sodium chloride duplex stainless-steel erosion corrosion iron mechanism seawater |
| ISSN号 | 0010-9312 |
| 中文摘要 | The cavitation corrosion behavior of 20SiMn low-alloy steel in both distilled water and 3% sodium chloride (NaCl) solution was investigated using a magnetostrictive-induced cavitation facility. Me micrographs of damaged surfaces were observed with a scanning electron microscope (SEM). The role of corrosion was analyzed using polarization curves, electrochemical impedance spectroscopy (EIS), linear polarization resistance, and the corrosion potential with or without cavitation. Futhermore, the effect of cavitation on corrosion behavior of 20SiMn steel was compared to that of oxygen bubbling. The results showed that a fraction (0.05) of the damage arose from electrochemical corrosion and a fraction (0.59) arose from corrosion-induced erosion. Cavitation shifted the corrosion potential in the positive direction and strongly enhanced the cathodic current density in the polarization curves. Cavitation also reduced the magnitude of impedance. The morphological examination revealed that the ferrite area and grain and ferrite-pearlite boundaries were preferential sites for cavitation attack as a result of the low hardness of ferrite. The mass loss came from the detachment of small pieces in the ferrite area in the early stage and from the removal of massive chunks by the propagation and connection of cracks in the following test period. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35953]  |
| 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 | S. Z. Luo,Y. G. Zheng,M. C. Li,et al. Effect of cavitation on corrosion behavior of 20SiMn low-alloy steel in 3% sodium chloride solution[J]. Corrosion,2003,59(7):597-605. |
| APA | S. Z. Luo,Y. G. Zheng,M. C. Li,Z. M. Yao,&W. Ke.(2003).Effect of cavitation on corrosion behavior of 20SiMn low-alloy steel in 3% sodium chloride solution.Corrosion,59(7),597-605. |
| MLA | S. Z. Luo,et al."Effect of cavitation on corrosion behavior of 20SiMn low-alloy steel in 3% sodium chloride solution".Corrosion 59.7(2003):597-605. |
入库方式： OAI收割
来源：金属研究所
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