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| Boundary Element Method (BEM) Analysis for Galvanic Corrosion of Hot Dip Galvanized Steel Immersed in Seawater | |
Tang, Xiao1; Zhang, Yuzhi1,2; Liu, Meng1,2; Li, Yan1
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| 2009-03-01 | |
| 发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| ISSN | 1005-0302 |
| 卷号 | 25期号:2页码:194-198 |
| 文章类型 | Article |
| 摘要 | A numerical analysis of galvanic corrosion of hot-dip galvanized steel immersed in seawater was presented. The analysis was based on the boundary element methods (BEMs) coupled with Newton-Raphson iterative technique to treat the nonlinear boundary conditions, which were determined by the experimental polarization curves. Results showed that galvanic current density concentrates on the boundary of steel substrate and zinc coating, and the sacrificial protection of zinc coating to steel substrate results in overprotection of steel cathode. Not only oxygen reduction but also hydrogen reduction could occur as cathode reactions, which probably led up to the adsorption and absorption of hydrogen atoms. Flat galvanized steel tensile sample shows a brittle behavior similar to hydrogen embrittlement according to the SSRT (show strain rate test) in seawater.; A numerical analysis of galvanic corrosion of hot-dip galvanized steel immersed in seawater was presented. The analysis was based on the boundary element methods (BEMs) coupled with Newton-Raphson iterative technique to treat the nonlinear boundary conditions, which were determined by the experimental polarization curves. Results showed that galvanic current density concentrates on the boundary of steel substrate and zinc coating, and the sacrificial protection of zinc coating to steel substrate results in overprotection of steel cathode. Not only oxygen reduction but also hydrogen reduction could occur as cathode reactions, which probably led up to the adsorption and absorption of hydrogen atoms. Flat galvanized steel tensile sample shows a brittle behavior similar to hydrogen embrittlement according to the SSRT (show strain rate test) in seawater. |
| 关键词 | Galvanic Corrosion Bem Hydrogen Absorption Potential Distribution Current Density Distribution |
| 学科领域 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264990700010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/2268 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 实验海洋生物学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Tang, Xiao,Zhang, Yuzhi,Liu, Meng,et al. Boundary Element Method (BEM) Analysis for Galvanic Corrosion of Hot Dip Galvanized Steel Immersed in Seawater[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2009,25(2):194-198. |
| APA | Tang, Xiao,Zhang, Yuzhi,Liu, Meng,&Li, Yan.(2009).Boundary Element Method (BEM) Analysis for Galvanic Corrosion of Hot Dip Galvanized Steel Immersed in Seawater.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,25(2),194-198. |
| MLA | Tang, Xiao,et al."Boundary Element Method (BEM) Analysis for Galvanic Corrosion of Hot Dip Galvanized Steel Immersed in Seawater".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 25.2(2009):194-198. |
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