Contact corrosion

{
  "id": "MLC-T-CHM-002478",
  "term": "Contact corrosion",
  "field": "Chemistry",
  "definition": "Localized electrochemical corrosion that occurs when two dissimilar metals are in electrical contact and exposed to a common corrosive electrolyte. The more active metal in the galvanic couple corrodes preferentially, acting as the anode, while the more noble metal acts as the cathode. This phenomenon is also known as galvanic corrosion.",
  "synonyms": [
    "galvanic corrosion"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "corrosion cell",
    "corrosion rate"
  ],
  "references": [
    "PAC, 1989, 61, 19. 'Electrochemical corrosion nomenclature (Recommendations 1988)' on page 22 (https://doi.org/10.1351/pac198961010019)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/contact-corrosion/"
}