Corrosion in Nuclear Waste Containers

Fergus, Jeffrey W.

doi:10.1149/05321.0075ecst

Cited by 3 publications

(2 citation statements)

References 40 publications

(66 reference statements)

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“…Corrosion is a ubiquitous problem that affects almost all industrial sectors including oil and gas production, transportation and refining facilities 1 , 2 , mining 3 , marine engineering and shipping 4 , 5 , industrial water systems 6 , food processing plants 7 , nuclear industries 8 , among others. This phenomenon occurs via electrochemical reactions, where electrons are released from the metal at anodic sites and are gained at cathodic sites 9 .…”

Section: Introductionmentioning

confidence: 99%

Carbon steel corrosion by bacteria from failed seal rings at an offshore facility

Salgar-Chaparro

Darwin

Kaksonen

et al. 2020

Sci Rep

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Corrosion of carbon steel by microorganisms recovered from corroded seal rings at an offshore floating production facility was investigated. Microbial diversity profiling revealed that communities in all sampled seal rings were dominated by Pseudomonas genus. Nine bacterial species, Pseudomonas aeruginosa CCC-IOB1, Pseudomonas balearica CCC-IOB3, Pseudomonas stutzeri CCC-IOB10, Citrobacter youngae CCC-IOB9, Petrotoga mobilis CCC-SPP15, Enterobacter roggenkampii CCC-SPP14, Enterobacter cloacae CCC-APB1, Cronobacter sakazakii CCC-APB3, and Shewanella chilikensis ccc-APB5 were isolated from corrosion products and identified based on 16S rRNA gene sequence. Corrosion rates induced by the individual isolates were evaluated in artificial seawater using short term immersion experiments at 40 °C under anaerobic conditions. P. balearica, E. roggenkampii, and S. chilikensis, which have not been associated with microbiologically influenced corrosion before, were further investigated at longer exposure times to better understand their effects on corrosion of carbon steel, using a combination of microbiological and surface analysis techniques. The results demonstrated that all bacterial isolates triggered general and localised corrosion of carbon steel. Differences observed in the surface deterioration pattern by the different bacterial isolates indicated variations in the corrosion reactions and mechanisms promoted by each isolate. Corrosion is a ubiquitous problem that affects almost all industrial sectors including oil and gas production, transportation and refining facilities 1,2 , mining 3 , marine engineering and shipping 4,5 , industrial water systems 6 , food processing plants 7 , nuclear industries 8 , among others. This phenomenon occurs via electrochemical reactions, where electrons are released from the metal at anodic sites and are gained at cathodic sites 9. Although assessment of the cost of corrosion is difficult, the NACE International IMPACT study estimated the global cost of corrosion as US$2.5 trillion in 2013 10. Microbiologically influenced corrosion (MIC) has been estimated to contribute at least 20% to 40% of the total corrosion costs 11,12. The loss of integrity of industrial infrastructure can result in substantial economic, environmental, health, safety and technological consequences 13. MIC is a type of corrosion in which the deterioration of metals occurs due to the presence and activity of microorganisms 14. Microorganisms initiate, facilitate or accelerate corrosion reactions by altering the electrochemical conditions in the metal-solution interface 15. Compared to other forms of corrosion, MIC is highly unpredictable and occurs at rates as high as 10 mm year −116. Early detection of MIC is difficult due to its localised nature and the wide range of environmental conditions and associated microorganisms 17. MIC has been proposed as the cause of failure in many significant incidents in the hydrocarbon industry such as the propane tank leak and explosion in Umm Said NGL Plant (Qatar) 18 , the natu...

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Section: Introductionmentioning

confidence: 99%

Carbon steel corrosion by bacteria from failed seal rings at an offshore facility

Salgar-Chaparro

Darwin

Kaksonen

et al. 2020

Sci Rep

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“…As mentioned earlier, the interconnect is a major cost factor for solid oxide fuel cells, especially when specialized steels, such as Crofer 22APU, are being used. This cost can be reduced by a factor of 10, if, instead, commercially available steels, such as AISI 441, can be utilized (7,8). However, the transition from 800 °C to 600 °C has led to other difficulties.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Different Factors on the Dual Atmosphere Effect Observed for AISI 441 Interconnects Used in Solid Oxide Fuel Cells

et al. 2019

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J. et al (2019) The influence of different factors on the dual atmosphere effect observed for AISI 441 interconnects used in solid oxide fuel cells ECS Transactions, 91(1): 2261-2266 http://dx.Interconnects used in solid oxide fuel cells are subjected to dual atmosphere corrosion at 600 °C. In this work we show that the dual atmosphere effect is dependent on the thickness of the steel sheet. For this AISI 441 with varying thicknesses was exposed to dual atmosphere at 600 °C for 336 h. Before and after exposure photographs were taken to analyze the progress of corrosion on the air-facing side of the steel samples. Additionally, scanning electron microscopy and energy dispersive x-ray diffraction (SEM/EDX) analysis was conducted on all exposed samples. It was found that thinner samples showed increased breakaway oxidation than thicker samples.

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A failure analysis study on the flange of submersible vertical pump ASTM A234 operated in offshore platform

Cahyono

Irawan

Munir

2021

Proceedings of the 13th Aun/Seed-Net Regional Conference on Materials (Rcm 2020) and the 1st International Conference on Materi

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Corrosion in Nuclear Waste Containers

Cited by 3 publications

References 40 publications

Carbon steel corrosion by bacteria from failed seal rings at an offshore facility

Carbon steel corrosion by bacteria from failed seal rings at an offshore facility

The Influence of Different Factors on the Dual Atmosphere Effect Observed for AISI 441 Interconnects Used in Solid Oxide Fuel Cells

A failure analysis study on the flange of submersible vertical pump ASTM A234 operated in offshore platform

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