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ORIGINAL RESEARCH article

Front. Mater.
Sec. Environmental Degradation of Materials
Volume 11 - 2024 | doi: 10.3389/fmats.2024.1496162

Effect of Surface Roughness on The Microbiologically Influenced Corrosion (MIC) of Copper 101

Provisionally accepted
Amit Acharjee Amit Acharjee 1,2Yagmur Keskin Yagmur Keskin 2,3Brent Peyton Brent Peyton 2,3Matthew W Fields Matthew W Fields 2,4,5Roberta Amendola Roberta Amendola 1,2*
  • 1 Department of mechanical and Industrial engineering, Montana State University, Bozeman, Montana, United States
  • 2 Center for Biofilm Engineering, Norm Asbjornson College of Engineering, Montana State University, Bozeman, Montana, United States
  • 3 Department of Chemical and Biological Engineering, Norm Asbjornson College of Engineering, Montana State University, Bozeman, Montana, United States
  • 4 Department of Microbiology and Cell biology Montana State University, Bozeman, United States
  • 5 Department of Civil Engineering, Norm Asbjornson College of Engineering, Montana State University, Bozeman, Montana, United States

The final, formatted version of the article will be published soon.

    The effect of varying surface roughness on microbiologically influenced corrosion by a model sulfate reducing bacterium Oleidesulfovibrio alaskensis G20 culture on copper 101 coupons was investigated using microscopic, spectroscopic and surface characterization techniques. After 7-days of anoxic exposure abundant biodeposits consisting of sessile cells and copper sulfide minerals were found and pitting attack was observed upon their removal. Results showed that the distribution and thickness of the biodeposits as well as the pitting severity were affected by the varying surface roughness. A direct relationship between surface roughness and microbial activity was not observed. However, a statistically significant reduction in the corrosion rate was recorded when the surface roughness was decreased from ~2.71um to ~0.006um.

    Keywords: Copper, roughness, Microbial corrosion, Biofilm, sulfate-reducing bacteria, Pitting corrosion

    Received: 13 Sep 2024; Accepted: 25 Nov 2024.

    Copyright: © 2024 Acharjee, Keskin, Peyton, Fields and Amendola. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Roberta Amendola, Center for Biofilm Engineering, Norm Asbjornson College of Engineering, Montana State University, Bozeman, 59717-3980, Montana, United States

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.