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  2. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Effectiveness of cathodic protection (CP) systems on steel pipelines can be impaired by the use of solid film backed dielectric coatings such as polyethylene tapes, shrinkable pipeline sleeves, and factory applied single or multiple solid film coatings. This phenomenon occurs because of the high electrical resistivity of these film backings. [68]

  3. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more negative reduction potential / more positive oxidation potential ) than the metal of the structure.

  4. Sacrificial metal - Wikipedia

    en.wikipedia.org/wiki/Sacrificial_metal

    Similarly, sacrificial bars of a metal such as aluminium or aluminium alloys can be attached to an oil rig or to the hull of a ship to prevent it from rusting and breaking down. Magnesium may similarly be used on dry land for installations such as pipelines and oil refineries, where its high driving voltage is better for overcoming the ...

  5. Corrosion engineering - Wikipedia

    en.wikipedia.org/wiki/Corrosion_engineering

    Impressed current cathodic protection has also been used. [40] Likewise sacrificial anode cathodic protection is also used. [41] Since chlorides vastly accelerate corrosion, ballast tanks of marine vessels are particularly susceptible. [42]

  6. Corrosion - Wikipedia

    en.wikipedia.org/wiki/Corrosion

    For unprotected piles, sacrificial anodes can be installed locally to the affected areas to inhibit the corrosion or a complete retrofitted sacrificial anode system can be installed. Affected areas can also be treated using cathodic protection, using either sacrificial anodes or applying current to an inert anode to produce a calcareous deposit ...

  7. Pin brazing - Wikipedia

    en.wikipedia.org/wiki/Pin_brazing

    The pin brazing process is well suited for joints between insulated pipe sections, connection to measuring cables, installation of sacrificial anodes and bonding zinc bracelets to offshore pipelines, due to the ease and speed of installation, high mechanical strength and extremely low resistance.

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