Contact Information

Yi-Ming Pan, Ph.D.
(210) 522-6640
ypan@swri.org

Microbially Influenced Corrosion

Image: Microbially influenced corrosion has penetrated through the wall of this 316L stainless steel seawater pipe.

Microbially influenced corrosion has penetrated through the wall of this 316L stainless steel seawater pipe.


Image: Pitting corrosion was caused by sulfate-reducing bacteria on 304L stainless steel in a chloride-free solution at room temperature.

Pitting corrosion was caused by sulfate-reducing bacteria on 304L stainless steel in a chloride-free solution at room temperature.

Microbially influenced corrosion (MIC) may be defined as accelerated corrosion of susceptible metals as a result of the direct, indirect, or combined actions of microbial metabolism. In many circumstances, particularly for corrosion-resistant alloys such as stainless steels, MIC manifests itself primarily as localized corrosion in the form of pitting, and causes high penetration rates of system components.

Nuclear Waste Management Experience

Southwest Research Institute (SwRI) has been conducting work for the U.S. Nuclear Regulatory Commission (NRC) to assess how MIC affects the life of waste packages that the U.S. Department of Energy (DOE) will design to potentially confine nuclear waste for many thousands of years. Our expertise developed from the nuclear waste management program is readily available for application to other industries.

Related Terminology

microbially influenced corrosion  •  corrosion measurement  •  stress corrosion cracking kinetics  •  reactive-transport process modeling  •  engineering component crevices  •  porous media  •  evaluation of effects of biofilms on corrosion  •  assessment of corrosion in glass melting systems  •  monitoring of corrosion processes in industrial settings  •  in situ spectroscopic techniques

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 10 technical divisions.

04/15/14