Concentration-cell corrosion

{
  "id": "MLC-T-CHM-002364",
  "term": "Concentration-cell corrosion",
  "field": "Chemistry",
  "definition": "A type of electrochemical corrosion that occurs when two areas of a metal surface are exposed to different concentrations of the same electrolyte or different concentrations of oxygen. This difference creates an electrochemical cell, leading to a potential difference and subsequent corrosion in the area with lower concentration of the active species. Crevice corrosion is a common example.",
  "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/concentration-cell-corrosion/"
}