Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels
文献类型：期刊论文
| 作者 | Dai, Chunduo; Chao, Liu; Liu, Zhiyong; Zhao, Tianliang; Li, Xiaogang; Du, Cuiwei |
| 刊名 | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| 出版日期 | 2018 |
| 卷号 | 27期号:9页码:4921-4931 |
| 关键词 | High-temperature Water Stainless-steel Electrochemical Noise Carbon-steel Mechanism Propagation Dissolution Aluminum Metals Energy |
| 英文摘要 | The electrochemical process and corrosion behavior prior to crack initiation of E690 steel fatigued in simulated seawater are investigated under different cyclic stress levels by methods of electrochemical impedance spectroscopy, cyclic current response, electrochemical noise and morphology observation. The results show that the electrochemical behavior changes with the peak stress of cyclic loading and the corrosion behavior transforms as the peak stress increases over the proof strength. The charge transfer resistance (R-ct) decreases with elevated peak stress. Continuous decreasing R-ct with cycling number under peak stress of 1.02 sigma(p0.2) indicates that continuous fresh metal induced by work-softening is exposed to the seawater, which is also proved by cyclic current response induced by cyclic stress and contact angle test. As a result, the corrosion type of E690 steel changes from general corrosion to pitting corrosion with the peak stress close to and above the proof strength. That induces the corrosion fatigue crack initiation mechanism to change correspondingly. |
| 学科主题 | Polymer Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17218]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Dai, Chunduo,Chao, Liu,Liu, Zhiyong,et al. Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2018,27(9):4921-4931. |
| APA | Dai, Chunduo,Chao, Liu,Liu, Zhiyong,Zhao, Tianliang,Li, Xiaogang,&Du, Cuiwei.(2018).Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,27(9),4921-4931. |
| MLA | Dai, Chunduo,et al."Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 27.9(2018):4921-4931. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。