Study on the corrosion of carbon steel by erosive anions in boiler water

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  • 1. Department of Urban Construction and Environmental Protection of Jianghan University, Wuhan 430010, China;
    2. Wuhan University, Wuhan 430072, China

Received date: 2000-12-08

  Online published: 2010-10-01

Abstract

In order to study the corrosion of carbon steel caused by the erosive anion with low phosphate and low NaOH water treatment technology, the total iron ions in the solution are determined through autoclave static experiments and by measuring the corrosion rate in different solution concent rations,and the surface analysis is done with electron probe.The results show that the Cl- and SO42- are the main causes of corrosion, especially pitting.They can interfere with the film forming .The corrosion rate and the number of voids increase and the anti-corrosion performance decreases when the ion concentration get shigher and Cl-,SOSO42- > 0.4 mg/ L。

Cite this article

LIU Yanxiang, LOU Taifang . Study on the corrosion of carbon steel by erosive anions in boiler water[J]. Industrial Water Treatment, 2001 , 21(7) : 30 -32 . DOI: 10.11894/1005-829x.2001.21(7).30

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