enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  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. 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.

  6. 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 ...

  7. Ruthenium - Wikipedia

    en.wikipedia.org/wiki/Ruthenium

    Ruthenium is a component of mixed-metal oxide (MMO) anodes used for cathodic protection of underground and submerged structures, and for electrolytic cells for such processes as generating chlorine from salt water. [64] The fluorescence of some ruthenium complexes is quenched by oxygen, finding use in optode sensors for oxygen. [65]

  8. New York State Consumer Protection Board - Wikipedia

    en.wikipedia.org/wiki/New_York_State_Consumer...

    The New York State Consumer Protection Board (CPB) is a former government agency of the State of New York that was responsible for protecting, educating and representing consumers. On March 31, 2011, Part A of Chapter 62 of the Laws of 2011 merged the CPB into the New York State Department of State (NYSDOS) creating a new Division of Consumer ...

  9. Cathodic modification - Wikipedia

    en.wikipedia.org/wiki/Cathodic_Modification

    Cathodic modification within chemistry is the retardation of anodic reaction as the result of an increase in the ability of an alloy to be passivated by the introduction of an active cathode into the alloy e.g. the alloying of stainless steel and titanium with platinum group metals (1).