Corrosion product layers and biofouling interactions on 70/30 cupronickel in polluted chloride media

Saravia, Sandra Gabriela Gómez de; Mele, Mónica Alicia Fernández Lorenzo de; Videla, H.A.

doi:10.1080/08927019309386249

Cited by 5 publications

(3 citation statements)

References 16 publications

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“…Copper and their alloys present a lower formation of biological deposits (biofouling) due to, probably, toxic characteristics of the Cu ions (II) coming from the metal dissolution 10,11 . Thus, when the substrate is toxic for the microorganisms, a greater production of EPM than on no toxic samples, such as gold, was observed ( Figure 4).…”

Section: Resultsmentioning

confidence: 99%

Influence of the nano-micro structure of the surface on bacterial adhesion

et al. 2007

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Biomaterials failures are frequently associated to the formation of bacterial biofilms on the surface. The aim of this work is to study the adhesion of non motile bacteria streptococci consortium and motile Pseudomonas fluorescens. Substrates with micro and nanopatterned topography were used. The influence of surface characteristics on bacterial adhesion was investigated using optical and epifluorescence microscopy, scanning electron microscopy (SEM) and atomic force microscopy (AFM). Results showed an important influence of the substratum nature. On microrough surfaces, initial bacterial adhesion was less significant than on smooth surfaces. In contrast, nanopatterned samples showed more bacterial attachment than the smooth control. It was also noted a remarkable difference in morphology, orientation and distribution of bacteria between the smooth and the nanostructured substrate. The results show the important effect of substratum nature and topography on bacterial adhesion which depended on the relation between roughness characteristics dimensions and bacterial size

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Section: Resultsmentioning

confidence: 99%

Influence of the nano-micro structure of the surface on bacterial adhesion

et al. 2007

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“…However, after different exposure times, diatoms and protozoa adhere to the metal surface forming biofilms. Toxic characteristics of the 70/30 copper-nickel alloy impose a pretreatment of the surface through the excretion of abundant EPS excreted by microorganisms [21]. Only isolated bacteria adhered to the surface of 70/30 copper-nickel samples after 7 days in seawater exposure (Fig.…”

Section: Thermoelectric Power Plantsmentioning

confidence: 99%

“…This was mainly due to precipitation of copper salts, adsorption of organic, adherence of biological materials. Detachment of the protective layers was produced in certain areas; preferential dissolution of copper (probably Cu2O) was observed in those areas where anion diffusion was restricted (such as under the external layer or between grains) [21].…”

Section: Thermoelectric Power Plantsmentioning

confidence: 99%

Biofilms Formation and Microbiologically Influenced Corrosion (MIC) In Different Materials

Guiamet

Saravia

2018

ICMS

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Background Metal surface immersed in natural or industrial waters undergo a sequence of processes in time and space that lead to the formation of biological and inorganic (scaling) deposit adhesion of different microorganisms (bacteria, microalgae, fungi) on the metal surface through extracellular polymeric substances, causing microbiologically influenced corrosion. The biofilm formation and microbiologically influenced corrosion impact on economic interests and after inorganic corrosion they are the most important problems affecting different industries. The eradication of biofilm in the industry is difficult and costly. Technological importance in the thermoelectric industry by biofilm and biofouling formation lies in energy losses in heat exchanger systems. In the oil industry, problems derived from the presence of biofilms as filter plugging, corrosion in structures storage and distribution of fuel are presented. The aim of this work is to show the different industry cases of microbiologically influenced corrosion: jet aircraft fuel storage tanks and distribution plant, steel plant, thermoelectric industry. The evaluation of microbiologically influenced corrosion and the biofilm formation are investigated.Methods: Microbial counts were performed by conventional techniques. The formation of the biofilm and the attack on the metal surface were studied through scanning electron microscopic techniques.Results: Different results were obtained for each of the industrial environments studied. Conclusion:Strategies to evaluate corrosion problems systems are proposed through microbiological and physical-chemical studies.

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How did the corrosion inhibitor work in amino-functionalized ionic liquids for CO2 capture: Quantum chemical calculation and experimental

Zhou

et al. 2019

International Journal of Greenhouse Gas Control

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Corrosion product layers and biofouling interactions on 70/30 cupronickel in polluted chloride media

Cited by 5 publications

References 16 publications

Influence of the nano-micro structure of the surface on bacterial adhesion

Influence of the nano-micro structure of the surface on bacterial adhesion

Biofilms Formation and Microbiologically Influenced Corrosion (MIC) In Different Materials

How did the corrosion inhibitor work in amino-functionalized ionic liquids for CO2 capture: Quantum chemical calculation and experimental

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