Please wait a minute...
中国腐蚀与防护学报  2005, Vol. 25 Issue (5): 295-298     
  研究报告 本期目录 | 过刊浏览 |
碱性溶液中阴极极化对模拟铸铁文物局部腐蚀闭塞区化学和电化学状态的影响
许淳淳;岳丽杰;欧阳维真
北京化工大学材料科学与工程学院
EFFECT OF CATHODIC POLARIZATION ON CHEMICAL AND ELECTROCHEMICAL STATES INSIDE OCCLUDED CELLS OF LOCALIZED CORROSION OF CAST IRON IN ALKALINE SOLUTION
Chunchun Xv;Lijie Yue;Weizhen Ouyang
北京化工大学材料科学与工程学院
全文: PDF(122 KB)  
摘要: 采用模拟闭塞电池恒电流法研究在碱性溶液中阴极极化对模拟铸铁文物局部腐蚀闭塞区内溶液化学和电化学状态的影响.结果表明:对试样通入阴极电流后,闭塞区内溶液的pH值随着通电时间的延长及阴极电流密度的增大而升高;氯离子向闭塞区外迁移,迁移率和迁移速率随时间的延长和电流密度的增大而增高.由于Cl-的迁出及外部OH-的迁入 ,闭塞区内的腐蚀受到抑制.通阴极电流能加速闭塞区内Cl-的迁出,比铸铁文物通常采用的碱性溶液浸泡脱氯法更为有效,是一种快速的电化学脱氯方法.
关键词 碱性溶液铸铁闭塞电池阴极极化    
Abstract:A simulated galvanostatic occluded cell was used to investigate the effect of cathodic polarization on chemical and electrochemical states inside occluded cell (OC) of localized corrosion for cast iron in alkaline solution.It has been found that as the cathodic current passes through the cell,the pH value of the OC solution rises with prolonging of time and rising of current density;the rate of Cl- migrating out from the OC also rises with prolonging of time and rising of current density.Because of Cl- migrating out fro m OC and OH- immigrating into OC,the localized corrosion was retarded.Passing cathodic polarization in alkaline solution can make Cl- migrating more quickly ,it is more efficiency than the cast iron dipping in alkaline solution(no cathod ic polarization).
Key wordsalkaline solution    cast iron    occluded cell    cathodic polarization
收稿日期: 2004-03-26     
ZTFLH:  TG174.41  
通讯作者: 许淳淳     E-mail: chunchunxu@163.com
Corresponding author: Chunchun Xv     E-mail: chunchunxu@163.com

引用本文:

许淳淳; 岳丽杰; 欧阳维真 . 碱性溶液中阴极极化对模拟铸铁文物局部腐蚀闭塞区化学和电化学状态的影响[J]. 中国腐蚀与防护学报, 2005, 25(5): 295-298 .
Chunchun Xv, Lijie Yue, Weizhen Ouyang. EFFECT OF CATHODIC POLARIZATION ON CHEMICAL AND ELECTROCHEMICAL STATES INSIDE OCCLUDED CELLS OF LOCALIZED CORROSION OF CAST IRON IN ALKALINE SOLUTION. J Chin Soc Corr Pro, 2005, 25(5): 295-298 .

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2005/V25/I5/295

[1]Turgoose S.The corrosion of archaeological iron during burial andtreatment[J].Studies in Conservation,1985,30:13-18
[2]Keene Suzanne,Orton Clive.Stability of treated archaeological iron:an assessment[J].Studies in Conservation,1989,30:136-142
[3]Mark R,Seeley Nigel J.The alkaline sodium sulphite reduction pro-cess for archaeological iron[J].Studies in Conservation,1982,27:180-183
[4]Zuo J Y,Jin Z Q.Investigation of chemical and electrochemicalchanges within corrosion cracks[J].J.Chem.Indust.Eng.,1982,4:291-301(左景伊,金志强.腐蚀裂缝内化学和电化学状态之探索[J].化工学报,1982,4:291-301)
[5]North N A,Macleod I D.Corrosion of metals conservation of marinearchaeological objects[D].London:Pearson Butterworths,1987
[6]North N A,Pearson C.Thermal decomposition of FeOCl and marineiron corrosion products[J].Studies in Conservation,1977,22:39-43
[7]North N A,Pearson C.Washing methods for chloride removal frommarine iron artifacts[J].Studies in Conservation,1978,23:174-186
[1] 周宇, 张海兵, 杜敏, 马力. 模拟深海环境中阴极极化对1000 MPa级高强钢氢脆敏感性的影响[J]. 中国腐蚀与防护学报, 2020, 40(5): 409-415.
[2] 余仁强,何建军,李微,任延杰,杨旺. 火电厂循环泵叶轮材料Cr30A在脱硫浆液腐蚀环境中的交互损伤失效行为研究[J]. 中国腐蚀与防护学报, 2019, 39(4): 353-358.
[3] 童海生,孙彦辉,宿彦京,庞晓露,高克玮. 海工结构用2205双相不锈钢氢致开裂行为研究[J]. 中国腐蚀与防护学报, 2019, 39(2): 130-137.
[4] 桂琪, 郑大江, 宋光铃. 醇酸清漆保护性的电化学加速评价[J]. 中国腐蚀与防护学报, 2018, 38(3): 274-282.
[5] 管方, 翟晓凡, 段继周, 侯保荣. 阴极极化对硫酸盐还原菌腐蚀影响的研究进展[J]. 中国腐蚀与防护学报, 2018, 38(1): 1-10.
[6] 周霄骋, 崔巧棋, 贾静焕, 刘智勇, 杜翠薇. Cl-浓度对316L不锈钢在碱性NaCl/Na2S溶液中SCC行为的影响[J]. 中国腐蚀与防护学报, 2017, 37(6): 526-532.
[7] 李腾, 金伟良, 许晨, 毛江鸿. 电化学修复过程中钢筋析氢稳态临界电流密度测定实验方法[J]. 中国腐蚀与防护学报, 2017, 37(4): 382-388.
[8] 郭望,赵卫民,张体明,杜天海,王勇. 阴极极化和应力耦合作用下X80钢氢渗透行为研究[J]. 中国腐蚀与防护学报, 2015, 35(4): 353-358.
[9] 滕飞,井宇阳,胡钢. 铸铁文物复合气相缓蚀剂的复配与研究[J]. 中国腐蚀与防护学报, 2015, 35(3): 265-270.
[10] 崔君军, 张雅静, 王琳琳, 陈晓刚, 张国志. 耐海水腐蚀球墨铸铁成分优化设计及其抗蚀性能[J]. 中国腐蚀与防护学报, 2014, 34(6): 537-543.
[11] 张体明, 赵卫民, 郭望, 王勇. 阴极保护下X65钢在模拟海水中的氢脆敏感性研究[J]. 中国腐蚀与防护学报, 2014, 34(4): 315-320.
[12] 林召强,马力,闫永贵. 阴极极化对高强度船体结构钢焊缝氢脆敏感性的影响[J]. 中国腐蚀与防护学报, 2011, 31(1): 46-50.
[13] 陈旭;李晓刚;杜翠薇; 梁平. 溶液环境对模拟剥离涂层下X70钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2010, 30(1): 35-40.
[14] 常娥;闫永贵;李庆芬;马力. 阴极极化对921A钢海水中氢脆敏感性的影响[J]. 中国腐蚀与防护学报, 2010, 30(1): 83-88.
[15] 张慧敏; 潘家祯; 王志文 . 埋地铸铁海水管失效分析[J]. 中国腐蚀与防护学报, 2005, 25(3): 183-186 .