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, Vol. 25

Issue (5): 295-298 DOI:

Research Report

Current Issue | Archive | Adv Search

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

Download:

PDF(122KB)
Export: BibTeX | EndNote (RIS)

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 words: alkaline solution cast iron occluded cell cathodic polarization

Received: 26 March 2004

ZTFLH:

TG174.41

Corresponding Authors: Chunchun Xv E-mail: chunchunxu@163.com

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Chunchun Xv
	Lijie Yue
	Weizhen Ouyang

Cite this article:

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 .

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/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]	YU Renqiang,HE Jianjun,LI Wei,REN Yanjie,YANG Wang. Erosive Wear of Cr30A High Chromium Cast Iron in a Simulated Circulating Pump Operation Condition with Slurry Related to Wet DesulfurationProcess in Thermal Power Plant[J]. 中国腐蚀与防护学报, 2019, 39(4): 353-358.
[2]	Qi GUI, Dajiang ZHENG, Guangling SONG. Electrochemically Accelerated Evaluation of Protectiveness for an Alkyd Varnish Coating[J]. 中国腐蚀与防护学报, 2018, 38(3): 274-282.
[3]	Fang GUAN, Xiaofan ZHAI, Jizhou DUAN, Baorong HOU. Progress on Influence of Cathodic Polarization on Sulfate-reducing Bacteria Induced Corrosion[J]. 中国腐蚀与防护学报, 2018, 38(1): 1-10.
[4]	Xiaocheng ZHOU, Qiaoqi CUI, Jinghuan JIA, Zhiyong LIU, Cuiwei DU. Influence of Cl^- Concentration on Stress Corrosion Cracking Behavior of 316L Stainless Steel in Alkaline NaCl/Na₂S Solution[J]. 中国腐蚀与防护学报, 2017, 37(6): 526-532.
[5]	Teng LI, Weiliang JIN, Chen XU, Jianghong MAO. Determination of Steady Critical Current Density of Hydrogen Evolution During Electrochemical Repair Process of Reinforced Concrete[J]. 中国腐蚀与防护学报, 2017, 37(4): 382-388.
[6]	Wang GUO,Weimin ZHAO,Timing ZHANG,Tianhai DU,Yong WANG. Hydrogen Permeation Behavior of X80 Steel under Cathodic Polarization and Stress[J]. 中国腐蚀与防护学报, 2015, 35(4): 353-358.
[7]	Fei TENG,Yuyang JING,Gang HU. Research of Compound Volatile Corrosion Inhibitors for Cast Iron Relics[J]. 中国腐蚀与防护学报, 2015, 35(3): 265-270.
[8]	CUI Junjun, ZHANG Yajing, WANG Linlin, CHEN Xiaogang, ZHANG Guozhi. Chemical Composition Optimization and Sea Water Corrosion Resistance of a Ductile Cast Iron[J]. 中国腐蚀与防护学报, 2014, 34(6): 537-543.
[9]	ZHANG Timing, ZHAO Weimin, GUO Wang, WANG Yong. Susceptibility to Hydrogen Embrittlement of X65 Steel Under Cathodic Protection in Artificial Sea Water[J]. 中国腐蚀与防护学报, 2014, 34(4): 315-320.
[10]	LIN Zhaoqiang, MA Li, YAN Yonggui. EFFECTS OF CATHODIC POLARIZATION ON THE HYDROGEN EMBRITTLEMENT SENSITIVITY OF WELDING LINE IN HIGH STRENGTH HULL STRUCTURAL STEEL[J]. 中国腐蚀与防护学报, 2011, 31(1): 46-50.
[11]	CHANG E; YAN Yonggui; LI Qingfen; MA Li. EFFECTS OF CATHODIC POLARIZATION ON THE HYDROGEN EMBRITTLEMENT SENSITIVITY OF 921A STEEL IN SEA WATER[J]. 中国腐蚀与防护学报, 2010, 30(1): 83-88.
[12]	Yusu Song; Yan Zhang; Liqing Zhou. FACTORS EFFECTING ON THE HYDROGEN EVOLUTION ON Al-ANODES IN STRONG ALKALINE SOLUTION[J]. 中国腐蚀与防护学报, 2006, 26(4): 237-240 .
[13]	. AN ANALYSIS OF FAILURE IN CAST IRON SEAWATER BURIED PIPE[J]. 中国腐蚀与防护学报, 2005, 25(3): 183-186 .
[14]	Hebing Zhou; Weishan Li. ANODIC PASSIVATION PROCESSES OF INDIUM IN ALKALINE SOLUTION[J]. 中国腐蚀与防护学报, 2005, 25(1): 25-29 .
[15]	. Chemical Changes Within Occluded Cell for Localized Corrosion of Iron Artifacts in Chloride Solution[J]. 中国腐蚀与防护学报, 2004, 24(6): 364-367 .

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed