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cathodic protection

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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004114
EISBN: 978-1-62708-184-9
... Abstract This article describes two principal methods for detecting well casing corrosion, namely, metal-loss tools and casing current measurement, as well as their limitations and advantages. It discusses the factors to be considered in designing well casing cathodic protection systems...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004118
EISBN: 978-1-62708-184-9
... Abstract This article provides a detailed discussion on the various devices by which cathodic protection (CP) can be applied to pipe-type power transmission cables. These devices include the resistor rectifier, isolator-surge protector, polarization cells, and field rectifiers. The article...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004109
EISBN: 978-1-62708-184-9
... Abstract Cathodic protection (CP) is an electrochemical means of corrosion control widely used in the marine environment. This article discusses two types of CP systems: impressed current systems and sacrificial anode (passive) systems. It describes the anode materials used in these systems...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003697
EISBN: 978-1-62708-182-5
... Abstract Cathodic protection is an electrochemical means of corrosion control in which the oxidation reaction in a galvanic cell is concentrated at the anode, which suppresses corrosion of the cathode in the same cell. This article provides a detailed discussion on the fundamentals and types...
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Published: 01 August 2013
Fig. 4 Cathodic protection of steel by zinc compared to lack of protection by tin More
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Published: 30 September 2015
Fig. 50 Cathodic protection visual evaluations. Courtesy of KTA-Tator, Inc. More
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Published: 30 September 2015
Fig. 15 Hydrogen gas evolution at a pinhole receiving cathodic protection More
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Published: 01 January 2006
Fig. 9 Thermoelectric generator used to power cathodic protection systems in remote locations. Source: Ref 50 More
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Published: 01 January 2006
Fig. 10 Typical cathodic protection installations. (a) Impressed current. (b) Sacrificial anode More
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Published: 01 January 2006
Fig. 11 Typical deep groundbed cathodic protection installation. Source: Ref 53 More
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Published: 01 January 2006
Fig. 12 Cathodic protection installation for a well casing. Source: Ref 54 More
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Published: 01 January 2006
Fig. 15 Cathodic protection system for a water storage tank. Source: Ref 57 More
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Published: 01 January 2006
Fig. 28 Effect of cathodic protection on the fatigue performance of alloy steel in seawater. Tests performed on 6.4 mm ( 1 4 in.) diam specimens at a mean stress of 425 MPa (69 ksi) More
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Published: 01 January 2006
Fig. 2 Example of axial current profile in casing without cathodic protection More
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Published: 01 January 2006
Fig. 13 Typical cathodic protection installation More
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Published: 01 January 2006
Fig. 3 Illustration of anodic stray-current interference. CP, cathodic protection More
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Published: 01 January 2006
Fig. 36 Electrical circuit analog of reinforced-concrete cathodic protection system components. (a) Anode is embedded or affixed to structure. (b) Anodes installed remote from the reinforced-concrete structure. ICCP, impressed-current cathodic protection; T/R, transformer/rectifier More
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Published: 01 January 2006
Fig. 37 System components for cathodic protection. (a) Impressed current. (b) Sacrificial or galvanic system More
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Published: 01 January 2006
Fig. 38 Evans diagram for the application of a galvanic cathodic protection (CP) system. Note: Log current is the absolute value of the current density, where both the anodic and cathodic currents are plotted as positive values. See the text for description. More
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Published: 01 January 2006
Fig. 40 Cathodic protection (CP) of reinforcement can lead to repassivation of the rebar when chloride ions migrate from rebar and/or realkalization of the concrete surrounding the rebar occurs. Under these conditions, the CP can be removed. The rebar will depolarize and return to passive More