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Bacterial corrosion

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Published: 01 January 2003
Fig. 4 Various forms of bacterial film that can influence corrosion. (a) Scatter of individual cells. 6050×. (b) Semicontinuous film of bacteria in slime. 3150×. (c) Bacterial cells in a colony. 2700× More
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Published: 01 January 2005
the users to concerns about thorough cleaning of a pitted surface that could trap debris and become a site for bacterial activity. The scenario offered as to the cause was that the cutting edge of the tool was dulled from use and was sharpened by grinding. The grinding may have been part of a routine More
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003637
EISBN: 978-1-62708-182-5
... ). It is in this latter configuration that there is the most potential for survival and growth of the organisms capable of influencing corrosion. Fig. 4 Various forms of bacterial film that can influence corrosion. (a) Scatter of individual cells. 6050×. (b) Semicontinuous film of bacteria in slime. 3150×. (c...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003647
EISBN: 978-1-62708-182-5
... to significant reductions in corrosion rate ( Ref 1 ). Pitting, crevice corrosion, differential aeration cells, metal concentration cells, selective dealloying, enhanced erosion, and enhanced galvanic corrosion can result from MIC. Most MIC studies have focused on bacterial involvement; however, other single...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003670
EISBN: 978-1-62708-182-5
... into sulfuric acid in the water droplets at the crown of the pipe by Thiobacillus . The corrosion problem is due to the combination of the bacterial action that results in dissolution of the alkaline mortar by the acid, followed by corrosion of the ductile iron. Fig. 9 Microbiologically influenced...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006866
EISBN: 978-1-62708-395-9
.... It summarizes the main synthetic polymers that are released and available for bacterial and fungal decomposition. The article also presents a detailed discussion on the enzymes that are involved in plastic degradation, and the measurement of polymer degradation. bacterial decomposition biodegradation...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
...: appearance of the corrosion damage Biological: cell counts for SRB, APB, and general bacterial population Chemical: identification of corrosion products and other deposits The metallurgical evidence is given the heaviest weighting, sufficient to pronounce MIC as being “very likely...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004219
EISBN: 978-1-62708-184-9
... microorganisms are well-known corrosion-producing agents. Principal acid-producing species are Thiobacillus thio-oxydans , an aerobic species ( Ref 15 , 18 ). While these bacterial species are exploited to improve leaching of mineral matters in hard-to-leach ores, their presence oxidizes sulfur or sulfur...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004105
EISBN: 978-1-62708-184-9
... of the marine environment in which corrosion occurs. The rate of biofilm formation is a function of nutrient concentrations, velocity of water flow, and temperature ( Ref 28 ). Bacterial Films The process of colonization begins immediately upon immersion, with the adsorption of a nonliving organic...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
... Abstract This article focuses on the mechanisms of microbiologically influenced corrosion as a basis for discussion on the diagnosis, management, and prevention of biological corrosion failures in piping, tanks, heat exchangers, and cooling towers. It begins with an overview of the scope...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003105
EISBN: 978-1-62708-199-3
... be considered to encompass all corrosion taking place on buried structures. Soil corrosion has been ascribed to low pH, stray currents, reactive chemicals, low resistivity, and bacterial action; however, oxygen and water are considered to be the key factors necessary for corrosion. Soil Characteristics...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004130
EISBN: 978-1-62708-184-9
... and field MIC studies have focused on bacterial involvement; however, other single-celled organisms, including fungi, can influence corrosion. This article focuses on MIC of military assets and is divided into atmospheric, hydrocarbon and water immersed, and buried environments. Individual mechanisms...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003805
EISBN: 978-1-62708-183-2
... (such as Desulfovibrio desulfuricans ), which occur under anaerobic conditions such as in deep soil layers, catalyze the reduction of sulfate (SO 4 2− )ion to sulfide (S 2− ), forming iron sulfide as a corrosion product. Anaerobic bacterial corrosion is more serious when it is combined with a differential aeration cell...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004121
EISBN: 978-1-62708-184-9
.... , King R.A. , and Miller J.D.A. , Bacterial Corrosion of Iron Encapsulated in Polyethylene Films , Br. Corros. J. , Vol 10 ( No. 1 ), 1975 , p 47 – 51 • Dively R.W. , Corrosion of Culverts , Mater. Perform. , Vol 31 ( No. 12 ), Dec 1992 , p 47 – 50 • Drisko...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003703
EISBN: 978-1-62708-182-5
... and bacterial corrosion might apply ( Ref 42 , 43 ). Design and Materials Selection Corrosion control measures are best initiated at the design stage ( Fig. 1 ). Materials are usually selected to perform a basic function or to provide a functional requirement. In many instances, the materials choice...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003819
EISBN: 978-1-62708-183-2
... factors that can initiate the corrosion of lead sheathing include contact with acetic acid (in wooden ducts), microorganisms, and corroded steel-tape armor. Bacterial corrosion usually occurs when aeration is poor and mud, water, or organic matter is present. Bacteria capable of reducing sulfates...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006031
EISBN: 978-1-62708-172-6
...–51 (1.5–2.0) Primers Polyvinylidene fluoride-based coatings are usually used with a thin organic primer. The primers are used to improve adhesion to the substrate and increase resistance to underfilm corrosion and delamination. Typical primers include solvent-based epoxy, solvent-based...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
... other functions. The generic types, functions, characteristics, and processes of corrosion-protective coatings are described in the articles “Introduction to Coatings and Linings,” “Organic Coatings and Linings,” and “Paint Systems” in ASM Handbook, Volume 13A, 2003. To function...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000605
EISBN: 978-1-62708-181-8
... fracture, brittle fracture, tensile-test fracture, transgranular fracture, cleavage fracture, delayed fracture, corrosion fatigue, inclusion morphology, fatigue crack propagation, and in-service fatigue fracture of various automotive components. These components include tie rod adjusting sleeves...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003699
EISBN: 978-1-62708-182-5
... to sour during the water injection phase. Bacterial activity is commonly responsible. (A waterflood is the injection of water into a field to displace hydrocarbon from the field.) Sour fluids in these mature waterfloods are generally regarded as being corrosive. Methods of Inhibitor Application...