Frontiers of Materials Award Symposium: Microbiologically Influenced Corrosion - How Organisms Accelerate Materials Degradation: On-Demand Oral Presentations
Program Organizers: Andrea Koerdt, Bundesanstalt für Materialforschung und Prüfung (BAM)
Monday 8:00 AM
March 14, 2022
Room: Special Topics
Location: On-Demand Room
Session Chair: Andrea Koerdt, Bundesanstalt für Materialforschung und Prüfung (BAM); Biwen Annie An, Bundesanstalt für Materialforschung und Prüfung (BAM)
Methanogen Induced Microbiologically Influenced Corrosion (Mi-MIC): Environmental Condition and Parameter Have a High Impact on the Corrosion Rate and Products: Andrea Koerdt1; 1Bundesanstalt für Materialforschung und Prüfung (BAM)
Microbiologically influenced corrosion (MIC)is a challenge for different industry sectors/infrastructure. The role of methanogen-induced-MIC (Mi-MIC) is often underestimated, due to the low corrosion rates (CR) reported so far and the suspected non-conductive corrosion product (CP), siderite. Recently, we demonstrated that corrosive methanogens have a larger impact on MIC. This difference is the result that conventional Mi-MIC studies using static incubations. This type of incubation fails to provide environmentally relevant information on the CR and CP, in particularly for methanogens. To illustrate the importance of the environment on the MIC process, we established a Multiport-Flow-Column, to simulate the natural environment. We obtained ten times higher CR than previously published under static conditions. Furthermore, we analyzed the CP with a combination of techniques (ToF-SIMS/SEM-EDS/FIB-SEM) and found that siderite is not the sole CP of Mi-MIC. This study will expand the current understanding of MIC thus aiding the development of different mitigation strategies.
Cross-disciplinary Dialog Essential for Overcoming Challenges to Managing Microbiologically Influenced Corrosion (MIC): Richard Eckert1; 1Microbial Corrosion Consulting, LLC
Biodeterioration in the form of corrosion results from a specific combination of physical, chemical, metallurgical and microbiological parameters that exhibit both independent and interdependent relationships. Even more so than for abiotic corrosion, MIC is a multidisciplinary subject - requiring knowledge of corrosion and materials science, microbiology, electrochemistry, molecular microbiological methods, fluid mechanics, asset design and operation, and other technical fields. Ineffective collaboration between subject matter experts and limited translation of knowledge to individuals directly responsible for managing MIC have been barriers to progress in controlling the threat of MIC. These barriers also impair the movement of industry toward environmental stewardship and sustainability. The need for creating a space and road map for better cross-disciplinary dialog is illustrated here through several case studies.
Microbial Communities and Corrosion Across Oil and Gas Systems – Similarities and Differences: Lisa Gieg1; 1University of Calgary
The degradation of metal infrastructure in the oil and gas industry due to the action of microorganisms represents a substantial corrosion mechanism that must be monitored and mitigated. Such microbiologically influenced corrosion (MIC) is often due to the action of sulfide-producing microorganisms, although many other types of microorganisms may also be involved in metal corrosion. Further, different types of microorganisms and metabolisms may be responsible for MIC in different locations within oil and gas systems. Hundreds of samples collected from locations such as crude oil reservoirs, offshore platforms, and crude oil transporting pipelines were evaluated for their microbial compositions and microbial corrosivity in order to determine the types of microorganisms that may lead to MIC under different physiochemical conditions. This talk will highlight similarities and differences in the types of microorganisms that may play an important role in the MIC of metal infrastructure across different locations within oil and gas operations.
Deciphering the Corrosion Potential of Methanogen-induced Microbiologically Influenced Corrosion Using an Integrative Approach: Biwen An1; Adelina-Elisa Dinter1; Eric Deland1; Björn Meermann1; Andrea Koerdt1; 1Bundesanstalt für Materialforschung und -prüfung (BAM)
Microbiologically influenced corrosion (MIC) is a long-standing but unpredictable phenomenon, that when left unchecked has severe consequences. Several microbial species have been identified and characterized for their corrosive properties, such as sulfate-reducing bacteria (SRB) and methanogenic archaea (MA). In contrary to SRB, the metabolic product of MA, methane, is unreactive to the metal surface, which raises more questions regarding their corrosion mechanisms. We used a novel and integrative approach to gain insights into the corrosive properties of MA. Macroscopically, we studied the corrosion mechanisms of MA by analyzing the corrosion products formed under static and flow-based systems using SEM-FIB-EDX, TOF-SIMS and AFM. At a microscopic level, we studied the elemental fingerprint of MA post-metal exposure using inductively-coupled plasma mass spectrometry (ICP-MS). By combining several techniques, we hope to provide an overview on the mechanistic potential of corrosive MA and their possible roles in the global metal-cycle.
Using Polyoxometalate Materials as Multifunctional Coatings with Antimicrobial and Anticorrosive Properties: Scott Mitchell1; 1Instituto de Nanociencia y Materiales de Aragón
Polyoxometalates (POMs) are a diverse class of nanoscale molecular metal oxides, characterised by a wide and versatile range of physicochemical properties that can be tuned on the molecular level. POMs display important antimicrobial activity and are producers of reactive oxygen species. Further, polyoxometalate-ionic liquids are unique composites for universal pollutant removal1,2 or reactive surface protecting coatings,3 because the composites can be tailored to target biological, organic and inorganic pollutants.4 I will discuss our research on POMs as multifunctional coatings, scaffolds and supramolecular self-assembly tools, focussing on their antimicrobial and anticorrosive activity.5,6,7 References to our research: 1. Angew. Chem. Int. Ed. 2017, 56, 1667. 2. Angew. Chem. Int. Ed. 2020, 59, 1601. 3. Molecules 2020, 25, 5663. 4. Chempluschem 2017, 82, 867. 5. Angew. Chem. Int. Ed. 2018, 130, 15142. 6. Angew. Chem. Int. Ed. 2020, 60, 3449.7. Chem CP 2021, 7, 629.
Corrosion in Fire Protection Systems (FPS) and the Role of Microbiologically Influenced Corrosion (MIC): Nanni Noel-Hermes1; Job Klijnstra1; Joost van Dam1; 1Endures B.V.
MIC is a rapid and localized form of corrosion initiated or accelerated by microorganisms and can affect a wide diversity of industry. Proper MIC diagnosis is a process of collecting appropriate scientific and practical knowledge from different expertise areas requiring a case by case approach. This presentation discusses several challenges related to corrosion in fire protection systems (FPS), in particular, the diagnosis and presence of MIC. Case studies are presented to demonstrate that MIC can be a problem in FPS but it is not necessarily the main reason for corrosion. It needs not only to be proven that microorganisms are present on the object or in the environment but also that they are active at the damaged part of a structure. It needs to be answered if the observed damage pattern is related to microbial activity or if it is the contribution of other corrosion mechanisms present in the system.
Corrosion of Stainless Steel in Deep Groundwater - Microbial and Geochemical Processes: Pauliina Rajala1; Elisa Isotahdon1; 1VTT Technical Research Centre of Finland Ltd.
Corrosion of two stainless steel grades, AISI304 and AIS316, was studied in long-term in-situ and laboratory experiments in conditions relevant for underground geological repository for nuclear waste. Low and intermediate level nuclear waste is produced during the operation and decommissioning of nuclear power plants. The metallic portion of this waste includes various parts made of stainless steels and carbon steel. At Olkiluoto nuclear power plant (Finland) the waste has been disposed of in a geological repository located at the depth of 60-95m below surface.General corrosion rates were moderate but localized corrosion was frequently detected. Interestingly, higher alloyed grade (AISI316) faced more intensive corrosion than lower alloyed grade in both laboratory and in-situ field conditions. Localized corrosion was pitting and intergranular corrosion. Diverse microbial community was detected on surfaces of steels in both in-situ and laboratory conditions. The microbes were accumulated on grain boundaries, where more intensive corrosion was detected.