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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030180
EISBN: 978-1-62708-282-2
... Abstract Anodic protection is used on a smaller scale than other corrosion control techniques due to the fundamental electrochemistry involved. This chapter provides a brief history of the technique, discusses anodic protection use, and compares anodic and cathodic protection. The background...
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Published: 01 January 2000
Fig. 4 Cathodic protection for underground pipe. (a) Sacrificial or galvanic anode. (b) Impressed-current anode More
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Published: 01 January 2000
Fig. 10 Magnesium anode used to cathodically protect glass-lined steel water heater More
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Published: 01 January 2000
Fig. 11 Zinc “bracelet” anode at a joint in an offshore pipeline More
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Published: 01 January 2000
Fig. 13 Use of mixed oxide/titanium anode mesh for cathodic protection. (a) Sidewalk and barrier wall installation. (b) Installation of anode mesh on a bridge substructure. More
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Published: 01 August 2013
Fig. 12.1 Corrosion cell. The anode is where electrons are generated in the external circuit, and the cathode is where they are consumed. Source: Ref 12.1 More
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Published: 01 August 2013
Fig. 12.6 Polarization is caused by an accumulation of positive ions near the anode and negative ions near the cathode. More
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Published: 01 August 2013
Fig. 12.8 Above a critical anode potential, certain materials become passive. Their corrosion rate drops abruptly. Note the current density is plotted on a logarithmic scale. More
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Published: 01 April 2013
Fig. 4 Schematic diagram of the actual and effective focal spots of an anode that is inclined at 20° to the centerline of the x-ray beam. Source: Ref 1 More
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Published: 01 December 2015
Fig. 1 Cathodic protection of buried pipeline using a buried magnesium anode More
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Published: 01 December 2015
Fig. 7 Debonded organic coating near a high-silicon cast iron button anode More
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Published: 01 December 2015
Fig. 11 Magnesium anode used to cathodically protect glass-lined steel water heater More
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Published: 01 December 2015
Fig. 13 Zinc bracelet anode at a joint in an offshore pipeline More
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Published: 01 December 2015
Fig. 15 Corrosion of aluminum anodes. (a) Uneven corrosion of aluminum anode, the result in part of improper foundry practice leading to segregation of alloying elements. (b) Uniform corrosion of aluminum anode as the result of proper foundry practice. Courtesy of Jack Smart, John S. Smart More
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Published: 01 December 2015
Fig. 17 Precious metal impressed-current anode on offshore platform prior to launching in the North Sea. Courtesy of W.H. Thomason, Conoco, Inc. More
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Published: 01 December 2015
Fig. 18 Use of mixed oxide/titanium anode mesh for cathodic protection. (a) Sidewalk and barrier-wall installation. (b) Installation of anode mesh on a bridge substructure. Courtesy of ELTECH Systems Corporation More
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Published: 01 December 2015
Fig. 24 Consumption rate of platinum anode More
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Published: 01 December 2015
Fig. 25 Plot of effective anode remoteness More
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Published: 01 December 2015
Fig. 26 Example 3. Bayonet anode locations More
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Published: 01 March 2001
Fig. 15 Cathodic protection for underground pipe. (a) Sacrificial or galvanic anode. (b) Impressed-current anode. ac, alternating current More