•  
  •  
 

Abstract

The inhibitive effect of compound inhibitor including emulsifier(P)、zinc sulfate、sodium polyphosphate、Glucose Gluconate was studied in 31% NaCl(bymass) solution.The inhibitory mechanism was analyzed by polarization curve and EIS.The results showed that the compound inhibitor was anodic-type inhibitor and its inhibitive effect on anodic and cathodal reaction was the most obvious at 200×10-6g·L-1.And the results of EIS revealed that the inhibition efficiency increased and the film formed on electrode surface was more and more compact with time.Inhibition mechanism was different with concentration of inhibitor.

Keywords

G105 steel, polarization, EIS, compound inhibitor

Publication Date

2007-11-28

Online Available Date

2007-11-28

Revised Date

2007-11-28

Received Date

2007-11-28

References

[1]Zhao Guopeng(赵国鹏),Yu Xinwei(于欣伟).Be-haviours of steel G105 and electroless Ni-P alloy aboutchemical corrosive wear[J].Journal of Anshan Instituteof I.&S.Technolog(in Chinese),2000,23(2):81-84.
[2]Cao Chunan(曹楚南).Corrosion electrochemistry the-ory[M].Beijing:Chemical Industry Press,2004.237.
[3]Gu Tiren(顾惕人).Surface chemistry[M].Beijing:Science Press,2003.40.
[4]Xu Shouchang(徐寿昌).Industry cooling water treat-ment technology[M].Beijing:Chemical IndustryPress,1984.272.
[5]Zhao Wei(赵维),Xia Mingzh(夏明珠),Lei Wu(雷武),et al.Quantum chemistry studies of organo-phosphorus corrosion inhibitor[J].Journal of ChineseSociety for Corrosion and Protection(in Chinese),2002,22(4):217-220.
[6]Rajendran S,Apparao B V,Palaniswamy N.Corrosioninhibition by strainless complexes[J].Corrosion Sci-ence,2001,43:1345-1354.
[7]Rajendran S,Reenkala S M,Anthony N Palaniswamy.Synergistic corrosion inhibition by the sodium dodecyl-sulphate-Zn2+system[J].Corrosion Science,2002,44:2243-2252.
[8]Zheng Yiyun(郑逸云),Zhou Boqing(周柏青),LiQin(李芹).Present status and development of corro-sion inhibitors for water treatment[J].Corrosion Sci-ence and Technology Protection(in Chinese),2004,16(2):101-104.
[9]Kendig M,Mansfeld F,Tsai S.Determination of thelong term corrosion behavior of coated steel with a.c.impedance measurements[J].Corrosion Science,1983,23(4):317-329.
[10]Wang Jia(王佳),Cao Chunan(曹楚南),Lin Hai-chao(林海潮).Features of AC impedance of pittingcorroded electrodes during pits propagation[J].Jour-nal of Chinese Society for Corrosion and Protection(inChinese),1989;9(4):271-279.
[11]ZhaoYongtao(赵永韬),WuJianhua(吴建华),Wang Jia(王佳).Studies on the anti-corrosion be-havior of corrosion inhibitor to the ship building steel inmoist air[J].Electrochemistry(in Chinese),2001,7(4):472-479.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.