Case history - Microbiologically influenced corrosion of type 304 austenitic stainless steel water pipe

被引:0
|
作者
Elshawesh, F [1 ]
Abusowa, K [1 ]
Mahfud, H [1 ]
ElAgdel, E [1 ]
机构
[1] Petr Res Ctr, Corros Div, Tripoli, Libya
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暂无
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Approximately 500 in of abovegrade 4.5-in. (11.4-cm) outside diameter, welded, type 304 austenitic stainless steel (UNS S30400) water pipeline in a food processing factory experienced severe localized corrosion after 3 months of service. Visual examination showed that corrosion and pitting were evident in the circumferential welds and parent metal of the pipe. An investigation revealed that chloride pitting initiated the attack and sulfate-reducing bacteria and warm temperature (>35degreesC) exacerbated the corrosion process. This article describes the investigation and recommended remedial action.
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页码:54 / 57
页数:4
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