Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Evaluation of long-term corrosion durability and self-healing ability of scratched coating systems on carbon steel in a marine environment | |
Zhao Xia1 ; Chen Changwei1,2; Xu Weichen1; Zhu Qingjun1; Ge Chengyue1; Hou Baorong1
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| 2017-09-01 | |
| 发表期刊 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
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| 卷号 | 35期号:5页码:1094-1107 |
| 文章类型 | Article |
| 摘要 | Defects in protective-coating systems on steel surfaces are inevitable in practical engineering applications. A composite coating system, including a primer, middle coat and topcoat, were used to protect carbon steel from corrosion in a marine environment. Two environmental additives, glass fibers and thiourea, were applied in the middle coat to modify the coating system. The long-term corrosion durability and self-healing ability of the scratched coating system were evaluated by multiple methods. Results of the electrochemical technologies indicated that the coating system that contained 0.5 wt.% fibers and 0.5 wt.% thiourea presented good corrosion protection and self-healing for carbon steel when immersed in 3.5% NaCl for 120 d. Evolution of localized corrosion factors with time, as obtained from the current distribution showed that fibers combined with thiourea could inhibit the occurrence of local corrosion in scratched coating systems and retarded the corrosion development significantly. Surface characterization suggested that adequate thiourea could be absorbed uniformly on fibers for a long time to play an important role in protecting the carbon steel. Finally, schematic models were established to demonstrate the action of fibers and thiourea on the exposed surface of the carbon steel and the scratched coating system in the entire deterioration process. |
| 关键词 | Scratched Coating System Corrosion Carbon Steel Long-term Self-healing |
| DOI | 10.1007/s00343-017-6132-3 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000410093300011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/143162 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Technol Univ, Sch Civil Engn, Qingdao 266033, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Xia,Chen Changwei,Xu Weichen,et al. Evaluation of long-term corrosion durability and self-healing ability of scratched coating systems on carbon steel in a marine environment[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(5):1094-1107. |
| APA | Zhao Xia,Chen Changwei,Xu Weichen,Zhu Qingjun,Ge Chengyue,&Hou Baorong.(2017).Evaluation of long-term corrosion durability and self-healing ability of scratched coating systems on carbon steel in a marine environment.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(5),1094-1107. |
| MLA | Zhao Xia,et al."Evaluation of long-term corrosion durability and self-healing ability of scratched coating systems on carbon steel in a marine environment".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.5(2017):1094-1107. |
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| Evaluation of long-t（1712KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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