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  2. Bethanization - Wikipedia

    en.wikipedia.org/wiki/Bethanization

    Bethanization is a process patented by the Bethlehem Steel Company to protect steel from corrosion by plating it with zinc, [1] a process similar to electrogalvanization.In advertising materials, Bethlehem Steel claimed the process was more effective than hot dip galvanization, the most common means of using zinc to protect steel.

  3. Electrogalvanization - Wikipedia

    en.wikipedia.org/wiki/Electrogalvanization

    Such Zinc electroplating or Zinc alloy electroplating maintains a dominant position among other electroplating process options, based upon electroplated tonnage per annum. According to the International Zinc Association, more than 5 million tons are used yearly for both hot dip galvanizing and electroplating. [ 1 ]

  4. Immersion zinc plating - Wikipedia

    en.wikipedia.org/wiki/Immersion_zinc_plating

    Immersion zinc plating is an electroless (non-electrolytic) coating process that deposits a thin layer of zinc on a less electronegative metal, by immersion in a solution containing a zinc or zincate ions, Zn(OH) 2− 4. A typical use is plating aluminum with zinc prior to electrolytic or electroless nickel plating.

  5. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    The white patches visible on the ship's hull are zinc block sacrificial anodes. Cathodic protection on ships is often implemented by galvanic anodes attached to the hull and ICCP for larger vessels. Since ships are regularly removed from the water for inspections and maintenance, it is a simple task to replace the galvanic anodes. [24]

  6. Galvanic anode - Wikipedia

    en.wikipedia.org/wiki/Galvanic_anode

    Zinc is considered a reliable material, but is not suitable for use at higher temperatures, as it tends to passivate (the oxide layer formed shields from further oxidation); if this happens, current may cease to flow and the anode stops working. [10] Zinc has a relatively low driving voltage, which means in higher-resistivity soils or water it ...

  7. Anodizing - Wikipedia

    en.wikipedia.org/wiki/Anodizing

    Zinc is rarely anodized, but a process was developed by the International Lead Zinc Research Organization and covered by MIL-A-81801. [17] A solution of ammonium phosphate, chromate and fluoride with voltages of up to 200 V can produce olive green coatings up to 80 μm thick. [17] The coatings are hard and corrosion resistant.

  8. Galvanic corrosion - Wikipedia

    en.wikipedia.org/wiki/Galvanic_corrosion

    Galvanizing with zinc protects the steel base metal by sacrificial anodic action. Cathodic protection uses one or more sacrificial anodes made of a metal which is more active than the protected metal. Alloys of metals commonly used for sacrificial anodes include zinc, magnesium, and aluminium. This approach is commonplace in water heaters and ...

  9. Zinc - Wikipedia

    en.wikipedia.org/wiki/Zinc

    Hot-dip handrail galvanized crystalline surface Zinc sacrificial anode. Zinc is most commonly used as an anti-corrosion agent, [122] and galvanization (coating of iron or steel) is the most familiar form. In 2009 in the United States, 55% or 893,000 tons of the zinc metal was used for galvanization. [121]

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