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which will corrode fastest?

fe and titanium, fe and copper, fe and aluminium and fe and zinc?? and which of these offers the best corrosion protection for the steel?/
Many thanks

FE and Zinc
reactivity series

This entry was posted on Wednesday, July 7th, 2010 at 2:29 pm and is filed under corrosion protection. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

4 Responses to “which will corrode fastest?”

  1. Sleeping Dog on July 7th, 2010 at 7:39 pm

    I would guess zinc because it’s commonly used in corrosion protection of steel. Although this could also be due to cost of the other materials.
    References :

  2. FE and Zinc
    reactivity series
    References :

  3. redbeardthegiant on July 7th, 2010 at 8:24 pm

    In what medium ?

    In general the more active metal will provide better protection to the iron.
    BUT….
    Aluminum and titanium, which are astonishingly active metals, are stable to air because they form a tightly adhering oxide layer. This interferes with their protecting the iron.

    Copper will not protect Iron as iron is more active than copper.
    References :

  4. red beard is right…
    References :

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