Biofouling and Microbially Influenced Corrosion of Stainless Steels

2013 ◽  
Vol 794 ◽  
pp. 539-551 ◽  
Author(s):  
K.A. Natarajan
Keyword(s):  
Stainless Steels ◽  
Corrosion Potential ◽  
Sea Water ◽  
Surface Film ◽  
Microbial Corrosion ◽  
Delta Ferrite ◽  
Corrosion Resistant ◽  
Anaerobic Microorganisms ◽  
Microbially Influenced Corrosion ◽  
Aerobic And Anaerobic

Stainless steels are among the most investigated materials on biofouling and microbially-influenced corrosion (MIC). Although, generally corrosion-resistant owing to tenacious and passive surface film due to chromium, stainless steels are susceptible to extensive biofouling in sub-soil, fresh water and sea water and chemical process environments. Biofilms influence their corrosion behavior due to corrosion potential ennoblement and sub-surface pitting. Both aerobic and anaerobic microorganisms catalyse microbial corrosion of stainless steels through biotic and abiotic mechanisms. MIC of stainless steels is common adjacent to welds at the heat-affected zone. Both austenite and delta ferrite phases may be susceptible. Even super stainless steels are found to be amenable to biofouling and MIC. Microbiological, electrochemical as well as physicochemical aspects of MIC pertaining to stainless steels in different environments are analyzed.

Corrosion Behaviors of 0Cr18Ni9 Stainless Steel under the Combination Action of Sulfate-Reducing Bacteria and V.natriegens

2011 ◽  
Vol 356-360 ◽  
pp. 161-164
Author(s):  
Cai Xiang Gu ◽  
Xiao Ming Zhao ◽  
Yan Sheng Yin ◽  
Gui Jun Ji
Keyword(s):  
Stainless Steel ◽  
Corrosion Potential ◽  
Sea Water ◽  
Microbial Corrosion ◽  
Sulfate Reducing ◽  
Facultative Anaerobic ◽  
Corrosion Behaviors ◽  
Microbial Film ◽  
Combined Action ◽  
Reducing Bacteria

Advantage strains SRB and V.natriegens were obtained from the China East Sea for this study. Polarization curves, corrosion potential, scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analyses were adopted in order to investigate the corrosion behaviors of 0Cr18Ni9 stainless steel under the combination action of anaerobic SRB and facultative anaerobic V.natriegens, The characteristics and mechanisms of microbial corrosion action in sea water were analyzed in this paper. The results show that SRB and V.natriegens promote each other’s growth when cultivated in the mixed microbe medium, in which the rate of corrosion is higher than that in the single microbe; Under the combined action of the mixed microbe, the microbial film gets wider and thicker, and corrosion products and metabolite are produced, which furthermore accelerates the passivation and pit corrosion to the 0Cr18Ni9 stainless steel.

The Experimental Study on Microbe Corrosion Resistance Performance of Cement Based Composite Material

2012 ◽  
Vol 598 ◽  
pp. 328-331
Author(s):  
Ying Bo Jiang
Keyword(s):  
Composite Material ◽  
Evaluation Index ◽  
Microbiological Corrosion ◽  
Microbial Corrosion ◽  
Accelerated Corrosion ◽  
Corrosion Resistant ◽  
Base Composite ◽  
Resistance Performance ◽  
Aerobic And Anaerobic ◽  
Anaerobic Environment

Use artificial enhanced sewage to configurate accelerated corrosion fluids, do the research on the performance of cement based composite material to resistance microbiological corrosion in the aerobic and anaerobic environment under the condition of sewage, the compressive strength and corrosion resistant coefficient and mass loss as the evaluation index, reveals the performance of cement base composite material to resistance microbial corrosion under the action of artificial intensified sewage.

Corrosion of Stainless Steels in the Marine Splash Zone

2012 ◽  
Vol 610-613 ◽  
pp. 272-275 ◽  
Author(s):  
Stuart I. Bailey ◽  
Xiang Li
Keyword(s):  
Pitting Corrosion ◽  
Stainless Steels ◽  
Corrosion Potential ◽  
Duplex Stainless Steels ◽  
The Other ◽  
Splash Zone ◽  
Laboratory Apparatus ◽  
Corrosion Resistant ◽  
Synthetic Seawater ◽  
Other Hand

Splash zone corrosion was investigated for a number of selected corrosion resistant alloys including in synthetic seawater. Stainless steels 304 and 316 and duplex stainless steels 2205 and 2507 were all investigated. A laboratory apparatus designed to simulate the wetting by a splash, and the subsequent drying through exposure to the weather, was used for this study. The corrosion potential showed a distinct evolution throughout the wet – dry cycle, compared to a sample maintained under constant immersion. However, the corrosion potential gave no indication of susceptibility to pitting corrosion. On the other hand, examination under an infinite focus microscope revealed significant pitting in the samples subjected to wet – dry cycling compared to those maintained under constant immersion

Structure and Properties of Stainless Steels Coatings Produced by Supersonic Plasma Spraying Method

1996 ◽  
Author(s):  
Yu. Borisov ◽  
A. Borisova ◽  
V. Golnik ◽  
A. Murashov ◽  
V. Bobrik
Keyword(s):  
Plasma Spraying ◽  
Stainless Steels ◽  
Corrosion Potential ◽  
Sea Water ◽  
Particle Sizes ◽  
Coating Structure ◽  
Properties Of Coatings ◽  
Gas Plasma ◽  
Stainless Steel Coatings ◽  
Spraying Method

Abstract Stainless steel coatings were produced by supersonic air-gas plasma spraying method. Mixture of air and natural gas was used as a plasma forming gas. Powders of 304L and 316L stainless steels were used for plasma spraying. Thickness of coatings was up to 3 mm. Coating structure was studied. Dependence of oxygen content in coatings upon particle sizes and spraying conditions was established. Investigation of electrochemical properties of coatings was carried out by potentiostatic method. Corrosion potential and corrosion rate in sea water, hydrochloric and sulphuric acid solutions were determined.

AISI No. 633

Alloy Digest ◽  
1981 ◽  
Vol 30 (7) ◽  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Stainless Steels ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Martensitic Stainless Steels ◽  
Steel Mills ◽  
Temperature Performance ◽  
Structural Applications

Abstract AISI No. 633 is a chromium-nickel-molybdenum stainless steel whose properties can be changed by heat treatment. It bridges the gap between the austenitic and martensitic stainless steels; that is, it has some of the properties of each. Its uses include high-strength structural applications, corrosion-resistant springs and knife blades. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-389. Producer or source: Stainless steel mills.

REMANIT 4439

Alloy Digest ◽  
1993 ◽  
Vol 42 (11) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Crevice Corrosion ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Low Carbon ◽  
Corrosion Resistant ◽  
Mechanical Properties And Corrosion

Abstract REMANIT 4439 is a highly corrosion resistant steel with low carbon content, an addition of nitrogen to enhance both mechanical properties and corrosion resistance, and higher molybdenum than most stainless steels to resist pitting and crevice corrosion in chloride media. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-556. Producer or source: Thyssen Stahl AG.

FIRTH VICKERS F.I. (A1)

Alloy Digest ◽  
1970 ◽  
Vol 19 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Stainless Steels ◽  
Heat Treating ◽  
Oil Refining ◽  
Corrosion Resistant ◽  
Temperature Performance ◽  
Plant Equipment ◽  
Corrosion Resistant Alloy

Abstract FIRTH VICKERS FI (A1) is a chromium type heat and corrosion resistant alloy steel recommended for oil refining and chemical plant equipment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-236. Producer or source: Firth-Vickers Stainless Steels Ltd.

Microbiological Investigations of Surface Film Oil Across a Sea Water Discontinuity

1986 ◽  
Vol 18 (4-5) ◽  
pp. 343-343
Author(s):  
M G. J. Route ◽  
G. D. Floodgate
Keyword(s):  
Sea Water ◽  
Surface Film

scholarly journals A Brief Insight into Microbial Corrosion and its Mitigation with Eco-friendly Inhibitors

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
M. Lavanya
Keyword(s):  
Electrochemical Impedance ◽  
Wide Spectrum ◽  
Present Review ◽  
Electrochemical Reactions ◽  
Microbial Corrosion ◽  
Engineering Applications ◽  
Microbially Influenced Corrosion ◽  
Catastrophic Failures ◽  
Chemical Strategies ◽  
Insight Into

AbstractCorrosion results from the electrochemical reactions between the metal and its existing environment. Corrosion results in severe and expensive damage to a wide spectrum of industries. When microbes are involved in corrosion it is seldom possible to economically evaluate its impact. Microbially influenced corrosion is recognized to cause catastrophic failures contributing to approximately 20% of the annual losses. In many engineering applications, microbially influenced corrosion control is of prime importance. Expensive, toxicity and sometimes, even ineffectiveness of the current chemical strategies to mitigate microbially influenced corrosion have shifted the interest towards eco-friendly inhibitors. The present review discusses microbial induced corrosion in various metals and its inhibition through eco-friendly inhibitors. In addition, the study also reviews the morphological and electrochemical impedance results.

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