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sci.corrosion-rate-electrochemical Calculator
Calculates corrosion rate from electrochemical polarisation data using the Stern-Geary equation and Tafel slope analysis. Corrosion current density i_corr (A/m²) converts to metal loss rate using Faraday's law — iron corroding at 1 µA/cm² loses approximately 0.012 mm/year.
Inputs
Corrosion Current Density Ua Cm2
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Atomic Weight G Mol
Body or object weight. For health calculators, usually in kg or lbs.
Valence N
Reference formula or conversion factor shown for context.
Metal Density G Cm3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
corrosion rate (mm/year)
The value at the specified point or condition.
corrosion rate (g/m²/yr)
The value at the specified point or condition.
Faraday: CR = i_corr·M/(n·F·ρ)
Sample size or count used in the calculation.
classification
Category assigned based on where the computed value falls on a defined scale. Check which standard or guideline defines these boundaries.
steel in seawater
The value at the specified point or condition.
1 µA/cm² ≈
Reference formula or conversion factor shown for context.