Volume 9, Issue 3 (september 2012)                   IJMSE 2012, 9(3): 58-66 | Back to browse issues page

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Sarmasti emami M R. An Experimental and Theoretical Investigation of Corrosion Mechanism in a Metallic Stack . IJMSE 2012; 9 (3) :58-66
URL: http://ijmse.iust.ac.ir/article-1-373-en.html
An Experimental and Theoretical Investigation of Corrosion Mechanism in a Metallic Stack
Mohammad Reza Sarmasti emami
Abstract:   (22098 Views)
This paper presents an experimental and theoretical investigation of the causes of corrosion of stack in a cement plant. In this paper, information related to metallic stack failures are given in the form of a case study in Neka Cement Plant, Mazandaran, Iran. Heavy corrosion attacks were observed on the samples of stack. The failure can be caused by one or more modes such as overheating, stress corrosion cracking (SCC), hydrogen embrittlement, creep, flame impingement, sulfide attack, weld attack, dew point corrosion, etc. Theoretical calculations and experimental observations revealed that, the corrosion had taken place due to the condensation of acidic flue gases in the interior of stack. Also, the chemical analysis of the corrosion deposits and condensates confirmed the presence of highly acidic environment consisting of mostly sulfate ions.
Keywords: Acid Solutions, Corrosion, Stack, Dew point, Low alloy steel
Full-Text [PDF 940 kb]   (6502 Downloads)    
Type of Study: Technical Note | Subject: Surfe coating and corrosion
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