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  2. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    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 electrochemical cell. [1] A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes ...

  3. DCVG - Wikipedia

    en.wikipedia.org/wiki/DCVG

    DCVG (direct current voltage gradient) is a survey technique used for assessing the effectiveness of corrosion protection on buried steel structures. [1] In particular, oil and natural gas pipelines are routinely monitored using this technique to help locate coating faults and highlight deficiencies in their cathodic protection (CP) strategies.

  4. 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.

  5. Groundbed - Wikipedia

    en.wikipedia.org/wiki/Groundbed

    In cathodic protection, the anode groundbed is the arrangement of anodes in the ground or water and it provides the path for protective current to leave the anodes and enter to electrolyte. [ 6 ] High voltage direct current systems

  6. Electrophoretic deposition - Wikipedia

    en.wikipedia.org/wiki/Electrophoretic_deposition

    PPG Industries, Inc. was the first to introduce commercially cathodic EPD in 1970. The first cathodic EPD use in the automotive industry was in 1975. Today, around 70% of the volume of EPD in use in the world today is the cathodic EPD type, largely due to the high usage of the technology in the automotive industry.

  7. Galvanic corrosion - Wikipedia

    en.wikipedia.org/wiki/Galvanic_corrosion

    Another example is the cathodic protection of buried or submerged structures as well as hot water storage tanks. In this case, sacrificial anodes work as part of a galvanic couple, promoting corrosion of the anode, while protecting the cathode metal.

  8. Anodic protection - Wikipedia

    en.wikipedia.org/wiki/Anodic_protection

    An anodic protection system includes an external power supply connected to auxiliary cathodes and controlled by a feedback signal from one or more reference electrodes. [3] Careful design and control is required when using anodic protection for several reasons, including excessive current when passivation is lost or unstable, leading to ...

  9. Commercial Metals Company - Wikipedia

    en.wikipedia.org/wiki/Commercial_Metals_Company

    Commercial Metals Company (CMC), headquartered in Irving, Texas, is a producer of rebar and related products for the construction industry. Along with Nucor, it is one of two primary suppliers of steel used to reinforce concrete in buildings, bridges, roads, and infrastructure in the U.S. The company also owns Tensar, a producer of foundation ...