Corrosion of Q235 in Dagang Simulated Solution at Different Temperatures
摘 要
主要利用极化曲线、线性极化和电化学阻抗谱(EIS)等电化学方法研究了Q235钢在不同温度下的大港模拟溶液中的腐蚀行为.试验表明:在20~50 ℃的范围内,其腐蚀电位比较接近阳极反应的平衡电位,其腐蚀过程受阴极反应氧的传输过程控制,随温度升高,Q235钢的腐蚀电位逐渐降低,腐蚀电流密度逐渐增大,线性极化电阻Rp以及电荷转移电阻Rt逐渐减小,在较高温下主要是通过促进阴极反应的传质过程增加了Q235钢的腐蚀速度.
Abstract
The corrosion of Q235 in Dagang simulated solution at different temperatures was studied by means of polarization curves,linear polarization and EIS.In the range of 20-50 ℃,the corrosion potential was close to the equilibrium potential of the anodic reaction.Corrosion process was controlled by the oxygen transmission of the cathodic process.When the temperature was elevated,corrosion current density Icorr increased,the linear polarization resistance Rp and the charge transfer resistance Rt reduced,and the corrosion rate increased primarily by the increasing of the transmission of reactant in the cathodic process.
中图分类号 TG172.6
所属栏目 试验研究
基金项目 国家自然科学基金重大项目(No.5049933);科技部国家科学基础条件平台建设项目(No.2005DKA10400)
收稿日期 2007/4/27
修改稿日期 2007/8/15
网络出版日期
作者单位点击查看
引用该论文: NIE Xiang-hui,DU Cui-wei,LI Xiao-gang. Corrosion of Q235 in Dagang Simulated Solution at Different Temperatures[J]. Corrosion & Protection, 2008, 29(4): 171~174
被引情况:
【1】高磊,吕维玲,曹江利, "热力管网蒸汽管道盐碱土腐蚀的现场试验",腐蚀与防护 33, 676-679(2012)
【2】查方林,冯兵,徐松, "同材料三电极体系研究接地网材料土壤腐蚀",腐蚀与防护 35, 907-911(2014)
【3】高磊,吕维玲,曹江利, "20钢在北京不同类型土壤模拟溶液中的腐蚀行为",腐蚀与防护 33, 972-975(2012)
【4】陈艳华,李六军,李冬冬,陈宇,于秀军, "油田埋地金属管道外腐蚀机理研究",腐蚀与防护 36, 1009-1013(2015)
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】张宝宏,丛文博,杨萍.金属电化学腐蚀与防护[M].北京:化学工业出版社,2005:51-53.
【2】Jung-Gu Kim,Yong-Wook Kim.Cathodic protection criteria of thermally insulated pipeline buried in soil[J].Corrrrosion Science,2001,43(11):2011-2021.
【3】曹楚南,张鉴清.电化学阻抗谱导论[M].北京:科学出版社,2004:86-92.
【4】M Kouril,P Novak,M Boiko.Limitations of the linear polarization method to determine stainless steel corrosion rate in concrete environment[J].Cement and Concrete Composites,2006,28(3):220-225.
【5】曹楚南.腐蚀电化学原理[M].北京:化学工业出版社,2004:16-24.
【6】梁英教.物理化学[M].北京:冶金工业出版社(第二版),1989:174-182.
【7】陈长风,路民旭,赵国仙,等.温度、C1-浓度、Cr元素对N80钢CO2腐蚀电极过程的影响[J].金属学报,2003,39(8):848-854.
【8】魏宝明.金属腐蚀理论及应用[M].北京:化学工业出版社,2004:109-111.
【2】Jung-Gu Kim,Yong-Wook Kim.Cathodic protection criteria of thermally insulated pipeline buried in soil[J].Corrrrosion Science,2001,43(11):2011-2021.
【3】曹楚南,张鉴清.电化学阻抗谱导论[M].北京:科学出版社,2004:86-92.
【4】M Kouril,P Novak,M Boiko.Limitations of the linear polarization method to determine stainless steel corrosion rate in concrete environment[J].Cement and Concrete Composites,2006,28(3):220-225.
【5】曹楚南.腐蚀电化学原理[M].北京:化学工业出版社,2004:16-24.
【6】梁英教.物理化学[M].北京:冶金工业出版社(第二版),1989:174-182.
【7】陈长风,路民旭,赵国仙,等.温度、C1-浓度、Cr元素对N80钢CO2腐蚀电极过程的影响[J].金属学报,2003,39(8):848-854.
【8】魏宝明.金属腐蚀理论及应用[M].北京:化学工业出版社,2004:109-111.
相关信息