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  2. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Aluminum sacrificial anodes (light colored rectangular bars) mounted on a steel jacket structure. Zinc sacrificial anode (rounded object) screwed to the underside of the hull of a small boat. Cathodic protection (CP; / k æ ˈ θ ɒ d ɪ k / ⓘ) is a technique used to control the corrosion of a metal surface by making it the cathode of an ...

  3. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    Detailed view of a galvanic anode on the hull of a ship The bright rectangular objects on these ship components are galvanic anodes. 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.

  4. Sacrificial metal - Wikipedia

    en.wikipedia.org/wiki/Sacrificial_metal

    A sacrificial metal is a metal used as a sacrificial anode in cathodic protection that corrodes to prevent a primary metal from corrosion or rusting. [1] It may also be used for galvanization. Equation

  5. Anodic protection - Wikipedia

    en.wikipedia.org/wiki/Anodic_protection

    Anodic protection (AP) otherwise referred to as Anodic Control is a technique to control the corrosion of a metal surface by making it the anode of an electrochemical cell and controlling the electrode potential in a zone where the metal is passive.

  6. Anode - Wikipedia

    en.wikipedia.org/wiki/Anode

    Sacrificial anodes mounted "on the fly" for corrosion protection of a metal structure In cathodic protection , a metal anode that is more reactive to the corrosive environment than the metal system to be protected is electrically linked to the protected system.

  7. Corrosion in ballast tanks - Wikipedia

    en.wikipedia.org/wiki/Corrosion_in_ballast_tanks

    Epoxy and modified epoxy are standard coatings used to provide protective barriers to corrosion in ballast tanks. Exposed, unprotected steel will corrode much more rapidly than steel covered with this protective layer. Many ships also use sacrificial anodes or an impressed current for additional protection. Empty ballast tanks will corrode ...

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