Title: non-uniform corrosion
Long Title: IUPAC Gold Book - non-uniform corrosion
DOI: 10.1351/goldbook.N04205
Status: current

Definition
Corrosion is non-uniform if the time average of the corrosion current through a unit area depends on its position on the surface. Non-uniform corrosion can be due to inhomogeneities of structure or of composition of the corroding material, or to inhomogeneities of the environment. Special cases of non-uniform corrosion such as pitting or intergranular corrosion are sometimes called localized corrosion.

Related Terms
- corrosion: https://goldbook.iupac.org//terms/view/C01351
- corrosion current: https://goldbook.iupac.org//terms/view/C01358
- uniform corrosion: https://goldbook.iupac.org//terms/view/U06555

Source
- PAC, 1989, 61, 19. 'Electrochemical corrosion nomenclature (Recommendations 1988)' on page 21 (https://doi.org/10.1351/pac198961010019)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/N04205/html
- json: https://goldbook.iupac.org/terms/view/N04205/json
- xml: https://goldbook.iupac.org/terms/view/N04205/xml

Citation: Citation: 'non-uniform corrosion' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.N04205
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Accessed: 2026-07-25T23:27:11+00:00