MIC of stainless steels: A technical review on the influence of microstructure

Ibars, J. R.; Moreno, Diego A.; Ranninger, C.

doi:10.1016/0964-8305(92)90051-o

Cited by 32 publications

(10 citation statements)

References 4 publications

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“…The current density ratio I r /I a is 4 × 10 −5 which indicates that there is no sensitization of the base material. In the literature has been established that there is a correlation between the microstructure of austenitic stainless steels and the susceptibility to MIC, showing that this susceptibility is even greater in sensitized areas [16]. In this case as there is not a sensitization of the austenitic steel it can be assessed that the corrosion attack is not related to a detrimental in corrosion resistance induced by the welding process.…”

Section: Resultsmentioning

confidence: 97%

Corrosion of stainless steels covered by exopolymers

Cristóbal

Arenas

Conde

et al. 2006

Electrochimica Acta

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Section: Resultsmentioning

confidence: 97%

Corrosion of stainless steels covered by exopolymers

Cristóbal

Arenas

Conde

et al. 2006

Electrochimica Acta

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“…Analyses of many failures due to pitting corrosion in power plants, chemical processing plants and pulp and paper mills have indicated that microbes attack the weldments preferentially (Syrett and Colt, 1983). Sensitization has been recognized as a factor that can contribute to pitting attack of SS weldments in the heat-affected zone (Ibars et al, 1992). Welding generates topological, chemical and microstructural changes that may increase corrosion susceptibility at the weldments.…”

Section: Preferential Adhesion By Iron-requiring Pseudomonas Sp On Sensitized Surfacesmentioning

confidence: 99%

Characterizing biofilms for biofouling and microbial corrosion control in cooling water systems

George

Mudali

Raj

2016

ACMM

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Purpose The purpose of this paper is to study the metal-Microbe interaction playing a crucial role in microbiologically influenced corrosion (MIC) and biofouling of materials in cooling water systems. Treatment regimens should be planned based on this understanding. Design/methodology/approach Attempts were made in the past decades to characterize and understand biofilm formation on important power plant structural materials such as carbon steel (CS), stainless steel (SS) and titanium in fresh water and in seawater to achieve better control of biofouling and minimize MIC problems. Findings This report presents the results of detailed studies on tuberculation-formed CS because of the action of iron-oxidizing bacteria and the effects of algae- and bacteria-dominated biofilms on the passivity of SS. The preferential adhesion of different bacterial species on SS under the influence of inclusions and sensitization was studied in the context of preferential corrosion of SS weldments due to microbial action. Detailed characterization of biofilms formed on titanium (the likely condenser material for fast breeder reactors) after exposure for two years in Kalpakkam coastal waters revealed intense biofouling and biomineralization of manganese even in chlorinated seawater. Studies on the effectiveness of conventional fouling control strategies were also evaluated. Originality/value The detailed studies of different metal/biofilm/microbe interactions demonstrated the physiological diversity of microbes in the biofilms that were formed on different materials, coupling their cooperative metabolic activities with consequent corrosion behaviour. These interactions could enhance either anodic or cathodic reactions and exploit metallurgical features that enhance biofilm formation and/or the capacity of microbes to mutate and overcome mitigation measures.

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“…The case histories published on MIC usually make references to the appearance of corrosion in welded zones, which usually takes the form of pitting. There are also scattered reports on relationship betweensensitisation state of the steel and MIC (Ibars et al 1992)17. This is one of the facts that points towards the correlation between the susceptibility to this type of corrosion and to the microstructural state in which the metals are found.…”

Section: S54mentioning

confidence: 99%