Metallurgical Failure Analysis, Mark Douglas Bell, PE, Consulting Metallurgical Engineer, San Diego, California, USA Bell Metallurgy
Metallurgical Failure Analysis
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Mark Douglas Bell, PE
Consulting Metallurgical Engineer

Microbiologically Influenced Corrosion

Bacteria such as iron reducing bacteria will severely pit and corrode vessels, tanks and pipelines. The attack has the appearance of pitting and one has to be careful to verify the absence or presence of the Microbiogically Influenced Corrosion, (MIC). The areas adjacent to weldments in stainless steels, in the presence of chlorides, may be subject to MIC.

The selection of high alloys or copper based alloys are ways to control MIC. Care in cleaning and grinding of weldments is useful in stainless steels.

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