What is galvanic corrosion: Definition + 1 Threads

Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, in the presence of an electrolyte. A similar galvanic reaction is exploited in primary cells to generate a useful electrical voltage to power portable devices. This phenomenon is named after Italian physician Luigi Galvani (1737–1798).

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  1. Juanda

    Corrosion and galvanic corrosion (Basic level)

    Let's start with something simple. Imagine we have a block of pure iron on an electrically insulated table (maybe plastic). It's exposed to the normal atmosphere you'd find in a city several kilometers away from the sea. According to this link, this would be the reaction. I have some questions...
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