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stray current corrosion

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870075
EISBN: 978-1-62708-299-0
... Abstract This chapter discusses three related corrosion mechanisms, galvanic, deposition, and stray-current corrosion, explaining why they occur and how they affect the corrosion process. It includes information on testing and prevention methods along with examples of the type of damage...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030023
EISBN: 978-1-62708-282-2
... Abstract This chapter is a detailed account of major sources of stray current that can cause corrosion and discusses several ways to prevent damage from stray-current corrosion. stray current corrosion corrosion prevention STRAY-CURRENT CORROSION is caused by an externally induced...
Image
Published: 01 January 2000
Fig. 14 Two examples of stray-current corrosion on buried structures. Black areas indicate anodic areas (i.e., current leaves structure). More
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Published: 01 December 2015
Fig. 4 Stray current corrosion caused by foreign pipeline More
Image
Published: 01 December 2015
Fig. 5 Pipeline that experienced stray current corrosion caused by inverting the electrical leads to a cathodic protection rectifier More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... of the base material. This chapter discusses the process of corrosion and how to prevent or mitigate its effects. It describes several forms of corrosion, including uniform, intergranular, pitting, crevice, and stray-current corrosion, and the effects of stress-corrosion cracking, corrosion fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... covered include differential cell corrosion, microbiologically influenced corrosion, and stray current corrosion. external corrosion stress-corrosion cracking oil and natural gas pipelines corrosion prevention corrosion mitigation corrosion detection corrosion assessment corrosion repair...
Image
Published: 01 December 2015
Fig. 1 Cathodic-protection system for a buried steel tank. (a) The original design that caused local failure of a nearby unprotected buried pipeline by stray-current corrosion. (b) Improved design. Installation of a second anode and an insulated buss connection provided protection for both More
Image
Published: 01 October 2011
Fig. 15.13 Cathodic protection system for a buried steel tank. (a) The original design that caused local failure of a nearby unprotected buried pipeline by stray current corrosion. (b) Improved design. Installation of a second anode and an insulated buss connection provided protection for both More
Image
Published: 01 January 2000
Fig. 8 Stray-current effects in underground pipelines. (a) Stray currents cause corrosion in neighboring pipeline. (b) Redesign minimizes stray-current effects. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
... systems. The types of cathodic protection systems include sacrificial cathodic protection and impressed-current cathodic protection systems. Some of the technical problems associated with cathodic protection include the effects of stray currents on the corrosion of adjacent metal structures, the effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910193
EISBN: 978-1-62708-250-1
... accelerated attack. Stray-Current Corrosion Stray-current corrosion is a special form of corrosion observed in buried structures. It differs from natural corrosion in that it is caused by an externally induced electrical current and is basically independent of environmental factors such as oxygen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030003
EISBN: 978-1-62708-282-2
... of the metal. Galvanic and stray current corrosion are not environment specific but rather can occur in any of the environments mentioned earlier. Localized Corrosion Localized corrosion is described as corrosion that occurs at discrete locations on a material. While this is true and accounts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030235
EISBN: 978-1-62708-282-2
... of localized attack occur because of end-grain attack and stray-current effects, which can render designs ineffective. End-Grain Attack End-grain attack, or preferential attack of grains exposed by crosscutting through a metal plate or rod ( Fig. 7c) , occurs in many corrosive fluids. An example...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910497
EISBN: 978-1-62708-250-1
... products and reactions are at unit activity on a scale in which the potential for the standard hydrogen half-cell is zero. stray-current corrosion. Corrosion resulting from direct current flow through paths other than the intended circuit. For example, by an ex- traneous current in the earth. stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
... of end-grain attack (discussion follows) and stray-current effects, which can render designs ineffective. Stray-current effects are common on underground cast iron or steel pipelines that are located close to electrical supply lines. Stray-current corrosion is further discussed in Chapter 5...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870025
EISBN: 978-1-62708-299-0
... in the oxide film and takes one of the following forms: Pitting corrosion Crevice corrosion, including staining corrosion and poultice corrosion Filiform corrosion Galvanic corrosion, including deposition and stray-current corrosion. (It should be noted that while galvanic corrosion most often...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030019
EISBN: 978-1-62708-282-2
... International , 1982 • Chaker V. , Ed., Corrosion Effect of Stray Currents and the Techniques for Evaluating Corrosion of Rebars in Concrete , Corrosion of Rebars in Concrete , STP 906, American Society for Testing and Materials , 1984 • Hack H.P. , Galvanic Corrosion Test Methods...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030184
EISBN: 978-1-62708-282-2
... cause the following problems: Stray current corrosion Hydrogen embrittlement Coating debonding Cathodic corrosion of aluminum Cathodic Protection Criteria Catastrophic corrosion failures such as the one shown in Fig. 8 have become less common in recent years...