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| 热镀锌钢材的电偶腐蚀行为-划痕型缺陷 | |
| 引用本文： | 张大磊,王伟,李焰.热镀锌钢材的电偶腐蚀行为-划痕型缺陷[J].材料研究学报,2009,23(4). |
| 作者姓名： | 张大磊 王伟 李焰 |
| 作者单位： | 1. 中国科学院海洋研究所,青岛,266071;中国科学院研究生院,北京,100039 2. 中国海洋大学化学化工学院,青岛,266100 3. 中国科学院海洋研究所,青岛,266071 |
| 基金项目： | 国家自然科学基金 40576038、山东省博士基金 2006BS07008和山东省自然科学基金 Y2008E09 资助项目 |
| 摘 要： | 使用锌-碳钢异材质丝柬电极技术,模拟并研究了锌/钢电偶腐蚀不同阶段的电位和电流密度的空间分布.结果表明,在锌丝与钢丝面积比为10:1的情况下,锌丝能给钢丝提供足够的阴极保护,且锌丝之间存在明显的电位、电流分布不均现象;钢丝之间也存在电化学参数分布不均现象,而且在受到保护的同时钢丝表面有氢析出. |
| 关 键 词： | 材料失效与保护 丝束电极 电偶腐蚀 阴极保护 镀锌层 氢析出 |
Wire beam electrode technique for investigating galvanic corrosion behavior of hot-dip galvanized steel-scratch defect |
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| ZHANG Dalei,WANG Wei,LI Yan.Wire beam electrode technique for investigating galvanic corrosion behavior of hot-dip galvanized steel-scratch defect[J].Chinese Journal of Materials Research,2009,23(4). | |
| Authors: | ZHANG Dalei WANG Wei LI Yan |
| Affiliation: | ZHANG Dalci~(1,2) WANG Wei~3 LI Yan~(1**) 1.Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071 2.Graduate School of the Chinese Academy of Sciences,Beijing 100039 3.College of Chemistry , Chemical Engineering,Ocean University of China,Qingdao 266100 |
| Abstract: | In order to obtain the spatial distribution and its variation with time during the galvanic corrosion of hot dip galvanized steel if scratches occurred in the zinc coating,the heterogeneous wire beam electrode composed of zinc and mild steel wires was developed,and then the potential and current distributions of this electrode were acquired at different time.The results showed that zinc wires can provide enough cathodic protection to steel wires in seawater when surface area of zinc wires is ten times that ... |
| Keywords: | materials failure and protection wire beam electrode carbon steel cathodic protection zinc coating hydrogen evolution |
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