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中国腐蚀与防护学报  2006, Vol. 26 Issue (5): 263-266     
  研究报告 本期目录 | 过刊浏览 |
碳钢/Ti和碳钢/Ti/海军黄铜在海水中电偶腐蚀的研究
杜敏;郭庆锟
中国海洋大学化学化工学院
Study of Galvanic Corrosion of Carbon Steel/Titanium and Carbon Steel/Titanium/Navel Brass in Seawater
;
中国海洋大学化学化工学院
全文: PDF(224 KB)  
摘要: 采用动电位极化技术及失重法研究Q235B碳钢/TA2钛和Q235B碳钢/TA2钛/海军黄铜在 海水中的电偶腐蚀规律.测定了Q235B碳钢、TA2钛和海军黄铜在海水中的自然腐蚀电位、腐 蚀 速率和稳态极化曲线,测定了不同面积比时电偶对电偶电流的大小、方向,电偶电位以及电 偶对阳极和阴极的失重速率,由电偶对不同面积比的数据得到Q235B碳钢被Ti电偶极化的动 态极化曲线.结果表明,阳极的腐蚀速率随阴/阳极面积比的增大而增加;阳极腐蚀速率随 阴/阳极面积比的增大有一个极限值,即当阴/阳极面积比大于这个极限值时,阳极腐蚀速率 不再增加.这三种金属构成的电偶对,海军黄铜是这个系统的阴极,受到碳钢的保护.
关键词 电偶腐蚀海水碳钢Ti海军黄铜    
Abstract:The natural corrosion potential,corrosion rate and steady-stat e polarization curves of Q235B carbon steel,TA2 titanium and navel brass in seaw ater were measured.The galvanic current,galvanic potential and galvanic corrosio n rate of anode and cathode of couple with different area ratio,at different tem perature and different velocity of seawater were measured.According to the data of the couple with different area ratio,a dynamic polarization curve of Q235B ca rbon steel was obtained.The galvanic corrosion characters of Q235B carbon steel /TA2 titanium and Q235B carbon steel/TA2 titanium/navel brass in seawater were invest igated.The results showed that corrosion rate of anode increased with increasing of area ratio of cathode/anode,temperature and velocity of seawater.But t here was a limited area ratio.The corrosion rate of anode did not increase when area ratio of cathode/anode was larger than the limit.When the galvanic co uple consists of the three metals,navel brass was cathode in the system and was protected by carbon steel.
Key wordsgalvanic corrosion    seawater    carbon steel    titanium    navel brass
收稿日期: 2006-01-26     
ZTFLH:  TG172.2  
通讯作者: 杜敏      E-mail: ssdm99@ouc.edu.cn

引用本文:

杜敏; 郭庆锟 . 碳钢/Ti和碳钢/Ti/海军黄铜在海水中电偶腐蚀的研究[J]. 中国腐蚀与防护学报, 2006, 26(5): 263-266 .
. Study of Galvanic Corrosion of Carbon Steel/Titanium and Carbon Steel/Titanium/Navel Brass in Seawater. J Chin Soc Corr Pro, 2006, 26(5): 263-266 .

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2006/V26/I5/263

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