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Book Chapter

Monitoring of Localized Corrosion

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By Lietai Yang, Narasi Sridhar
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003656
EISBN: 978-1-62708-182-5
... Abstract This article provides a discussion on the operation of various methods and sensors that have been used or have the potential to be used for on-line, real-time monitoring of localized corrosion. These include the electrochemical noise (ECN) method, nonelectrochemical methods...
Abstract
This article provides a discussion on the operation of various methods and sensors that have been used or have the potential to be used for on-line, real-time monitoring of localized corrosion. These include the electrochemical noise (ECN) method, nonelectrochemical methods, the galvanically coupled differential flow cell, galvanically coupled crevice cell, coupled multielectrode sensor, and electrochemical biofilm activity sensor.
View PDF for content titled, Monitoring of <span class="search-highlight">Localized</span> <span class="search-highlight">Corrosion</span>
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Examples of how design and assembly can affect localized corrosion by creat...

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in Analysis and Prevention of Corrosion-Related Failures > Failure Analysis and Prevention
Published: 01 January 2002
Fig. 7 Examples of how design and assembly can affect localized corrosion by creating crevices and traps where corrosive liquids can accumulate. (a) Storage containers or vessels should allow complete drainage; otherwise, corrosives can concentrate in the bottom of vessel, and debris may More
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Localized corrosion of asbestos-gasketed flanged joints in a type 304 stain...

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in Microbiologically Influenced Corrosion > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 19 Localized corrosion of asbestos-gasketed flanged joints in a type 304 stainless steel piping system. (a) Single remaining biodeposit adjacent to resulting corrosion on the flange. Numerous other similar deposits were dislodged in opening the joint. (b) Closeup of gouging-type corrosion More
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Differential flow cell sensor for localized corrosion. Valve adjusts relati...

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in Monitoring of Localized Corrosion > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 1 Differential flow cell sensor for localized corrosion. Valve adjusts relative flow rates. Anode 0 and anode 1 are redundant, and zero resistance ammeter (ZRA) can be switched to either anode. Adapted from Ref 24 , with permission from the National Association of Corrosion Engineers More
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Typical localized corrosion damage found inside the tank

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in Corrosion and Remaining Life Assessment > Analysis and Prevention of Component and Equipment Failures
Published: 30 August 2021
Fig. 4 Typical localized corrosion damage found inside the tank More
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Examples of how design and assembly can affect localized corrosion by creat...

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in Analysis and Prevention of Environmental- and Corrosion-Related Failures > Failure Analysis and Prevention
Published: 15 January 2021
Fig. 24 Examples of how design and assembly can affect localized corrosion by creating crevices and traps where corrosive liquids can accumulate. (a) Storage containers and vessels should allow complete drainage; otherwise, corrosives can concentrate in the bottom of the vessel, and debris can More
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Resistance of ferritic and duplex stainless steels to localized corrosion i...

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in Wrought Stainless Steels > Properties and Selection: Irons, Steels, and High-Performance Alloys
Published: 01 January 1990
Fig. 19(c) Resistance of ferritic and duplex stainless steels to localized corrosion in a paper mill bleach plant environment. Total depth of attack has been divided by 4 because there were four crevice sites per specimen. See also Fig. 19(a) and 19(b) . Source: Ref 56 More
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Localized corrosion under a rust tubercle. Source: Ref 4

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in Corrosion Inhibitors in the Water Treatment Industry > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 2 Localized corrosion under a rust tubercle. Source: Ref 4 More
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Localized corrosion of stainless steel pipes from direct exposure to marine...

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in Materials Selection for Corrosion Control > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 1 Localized corrosion of stainless steel pipes from direct exposure to marine mists, compounded by plastic wraps More
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Examples of how design and assembly can affect localized corrosion by creat...

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in Designing to Minimize Corrosion > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 5 Examples of how design and assembly can affect localized corrosion by creating crevices and traps where corrosive liquids can accumulate. (a) Storage containers or vessels should allow complete drainage; otherwise, corrosive species can concentrate in vessel bottom, and debris may More
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Examples of how design and assembly can affect localized corrosion by creat...

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in Design for Corrosion Resistance > Materials Selection and Design
Published: 01 January 1997
Fig. 29 Examples of how design and assembly can affect localized corrosion by creating crevices and traps where corrosive liquids can accumulate. (a) Storage containers or vessels should allow complete drainage; otherwise, corrosive species can concentrate in vessel bottom, and debris may More
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Resistance of stainless steels to localized corrosion in a paper mill bleac...

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in Corrosion of Wrought Stainless Steels > Corrosion: Materials
Published: 01 January 2005
Fig. 17 Resistance of stainless steels to localized corrosion in a paper mill bleach plant environment. Total depth of attack has been divided by 4 because there were four crevice sites per specimen. (a) Austenitic stainless steels containing 2.1 to 4.4% Mo. (b) Austenitic stainless steels More
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Scanning electron microscope micrograph of localized corrosion on silicon/a...

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in Corrosion of Metal-Matrix Composites > Corrosion: Materials
Published: 01 January 2005
Fig. 11 Scanning electron microscope micrograph of localized corrosion on silicon/aluminum metal-matrix composite (MMC) after exposure to aerated 0.5 M Na 2 SO 4 at 30 °C (86 °F) for 120 h in the open-circuit condition ( Ref 41 ). Notice the formation of microcrevices by silicon particles More
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Elevation view of cracked beam. Localized corrosion cut all the rebars crossing the crack, including those at the beam bottom.

Elevation view of cracked beam. Localized corrosion cut all the rebars cros...

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in Corrosion in Bridges and Highways > Corrosion: Environments and Industries
Published: 01 January 2006
Fig. 12 Elevation view of cracked beam. Localized corrosion cut all the rebars crossing the crack, including those at the beam bottom. More
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Schematic of localized corrosion with adjacent cathode

Schematic of localized corrosion with adjacent cathode

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in Corrosion in Bridges and Highways > Corrosion: Environments and Industries
Published: 01 January 2006
Fig. 15 Schematic of localized corrosion with adjacent cathode More
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A small anode/large cathode situation that can exist at a local corrosion s...

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in Kinetics of Aqueous Corrosion > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 3 A small anode/large cathode situation that can exist at a local corrosion site. A a and A c are the available anode and cathode areas; M n + is the corrosion product More
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Schematic showing zinc dissolution due to local corrosion of a zinc anode i...

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in Anodes for Batteries > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 8 Schematic showing zinc dissolution due to local corrosion of a zinc anode in a zinc-carbon battery. Source: Ref 2 More
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Comparison between general corrosion and localized (pitting) corrosion data recorded from a dehydrated gas pipeline environment. Source: Ref 59

Comparison between general corrosion and localized (pitting) corrosion data...

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in Natural Gas Internal Pipeline Corrosion > Corrosion: Environments and Industries
Published: 01 January 2006
Fig. 13 Comparison between general corrosion and localized (pitting) corrosion data recorded from a dehydrated gas pipeline environment. Source: Ref 59 More
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Localized biological corrosion of austenitic stainless steel. (a) Crevice c...

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in Microbiologically Influenced Corrosion > Corrosion: Fundamentals, Testing, and Protection
Published: 01 January 2003
Fig. 16 Localized biological corrosion of austenitic stainless steel. (a) Crevice corrosion of type 304 stainless steel flange from a cooling water system. Staining shows evidence of adjacent biomounds. The corrosion attack reached a depth of 6 mm ( 1 4 in.). Courtesy of W.K. Link More
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Localized chloride exposure resulted in stress-corrosion cracking of an austenitic stainless steel sheath over a rubber hose. Individual wire fractures were too fine to examine in the field, but the coincident locations of metal corrosion and hose failure were obvious. The analyst must also consider the possibility of a leak causing incidental corrosion if the media in the hose were corrosive. Failure was ultimately the result of dripped solder flux from an overhanging joint. The scale is in 1/16 in.

Localized chloride exposure resulted in stress-corrosion cracking of an aus...

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in Examination of Fracture Surfaces > Fractography
Published: 01 June 2024
Fig. 39 Localized chloride exposure resulted in stress-corrosion cracking of an austenitic stainless steel sheath over a rubber hose. Individual wire fractures were too fine to examine in the field, but the coincident locations of metal corrosion and hose failure were obvious. The analyst must More