Effect of surface texture on corrosion behaviour of steel

Kandeil, A. Y.; Mourad, M. Y.

doi:10.1016/0257-8972(89)90106-0

Cited by 9 publications

(4 citation statements)

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“…Kandeil et al 21 offered a way to classify the surface parameters such as (a) amplitude parameters (peak and valley on surface), (b) spacing parameter (spacing between irregularities in surface) and (c) hybrid parameters (combination of (a) and (b)). It is an established fact that corrosion behaviour is mostly related to the amplitude parameter.…”

Section: Role Of Texture In Corrosion Of Carbon Steelsmentioning

confidence: 99%

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Carbon steel corrosion: a review of key surface properties and characterization methods

2017

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Section: Role Of Texture In Corrosion Of Carbon Steelsmentioning

confidence: 99%

“…Kandeil et al 36 investigated the effect of surface texture on corrosion behaviour of carbon steel and developed a regression equation for corrosion potential and polarization potential, correlating the corrosion rate, corrosion potential and polarization potential with surface properties.…”

Section: Role Of Texture In Corrosion Of Carbon Steelsmentioning

confidence: 99%

Carbon steel corrosion: a review of key surface properties and characterization methods

2017

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“…27 Surface topography influences the abiotic corrosion reactions. 28,29 as well as adhesion of the biofilm, 30 which in turn affects corrosion rate. Bacterial settlement is influenced by substratum roughness and geometry.…”

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confidence: 99%

Onset of Microbial Influenced Corrosion (MIC) in Stainless Steel Exposed to Mixed Species Biofilms from Equatorial Seawater

Jogdeo

Chai

Sun

et al. 2017

J. Electrochem. Soc.

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19The understanding of microbial influenced corrosion (MIC) in aerobic mixed biofilms 20 benefits from advanced microscopy and microbial ecology characterization of biofilms. Here, 21 the onset of MIC in stainless steel coupons was studied in both natural and artificial seawater. 22 Rapid selection of biofilm-forming microorganisms from natural seawater was observed for 23 field experiments. Potential ennoblement was observed only in natural seawater. A seawater 24 derived mixed microbial consortium enriched in artificial seawater was used to characterize 25 the effect of several parameters on MIC. The concentration of organic carbon was the major 26 determinant of MIC, while shaking speed and polishing played minor roles. The biofilm was 27 preferentially formed at the grain boundaries. These results outline the need for MIC onset 28 characterization with mixed microbial consortia to predict long-term corrosion behaviour of 29 stainless steel in seawater. 30 31 Introduction 32Microbially influenced corrosion (MIC) of metals refers to the involvement of 33 microorganisms in the metal deterioration process. MIC has significant economic 34 consequences for industries such as oil and gas, mining, logistics and waste water treatment, 35 with social and environmental impacts associated with the deterioration of materials 1 . 36 2 Microorganisms affect physicochemical reactions at the metal/liquid interface, either slowing 37 down or accelerating abiotic corrosion processes 1, 2 . Due to their physicochemical 3 and 38 microbiological resistance 4 to metal deterioration and MIC, stainless steels (SS) are used in 39 key marine components. 40 41 MIC mechanisms previously put forth include the effects of differential concentrations of 42 oxygen and nutrients; generation of corrosive metabolites or by-products; alteration of anion 43 ratios and inactivation of corrosion inhibitors 5 . Adsorbed extracellular biofilm matrix 44 molecules such as proteins, lipids, humic acids and polysaccharides change the SS surface by 45 modifying surface charge, wettability or surface energy, thus enhancing or inhibiting MIC 6 . 46The biofilm can also act as a diffusional barrier preventing oxygen and corrosive substances 47 from reaching the metal surface 7 . 48 49 Sulphate-reducing bacteria (SRB) are commonly cited as the primary organisms responsible 50 for MIC under anaerobic and anoxic conditions in seawater through the production of 51 corrosive sulphides. However, aerobic microorganisms have also been increasingly studied, 52 substantiating their role in MIC process. For example, in the presence of the aerobic marine 53 bacterium Pseudomonas sp., SS304 showed a higher corrosion rate and lower resistance of 54 the passive film, indicating localised breakdown of passive film, in contrast with abiotic 55 experiments with stable and passivating Cr-enriched oxide films 8 . Microbial activities can 56 alter the inorganic passive layer and increase metal dissolution. Extensive micro-pitting 57 corrosion was observed underneath biofilms...

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“…No one parameter can quantify all the characteristics. It includes i) amplitude parameters to investigate peak / valley heights of surface irregularities, ii) spacing parameters to check spacing of irregularities and iii) hybrid parameters which are a combination of both (Kandeil et al 1989). Metal surface characterization essentially gives information about cause and effect of MIC process.…”

Section: Surface Characterizationmentioning

confidence: 99%

Role of mixed species microbial community biofilms in microbially influenced corrosion

Jogdeo¹

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This four-year journey would not have been possible without the help and support of so many people, to whom I would like to convey my gratitude.Firstly, I would like to express sincere thanks to my supervisor Assoc. Prof.Scott Rice for his guidance, all the fruitful discussions and believing in me to work on this project. I would also like to thank my co-supervisor, Dr. Enrico Marsili for introducing me to the world of electrochemistry. His encouragement always kept me going. I am obliged to the insightful comments and suggestions from Assoc. Prof.

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Effect of surface texture on corrosion behaviour of steel

Cited by 9 publications

References 0 publications

Carbon steel corrosion: a review of key surface properties and characterization methods

Carbon steel corrosion: a review of key surface properties and characterization methods

Onset of Microbial Influenced Corrosion (MIC) in Stainless Steel Exposed to Mixed Species Biofilms from Equatorial Seawater

Role of mixed species microbial community biofilms in microbially influenced corrosion

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