potentiodynamische
Potentiodynamic polarization is an electrochemical method used to study corrosion behavior and electrode kinetics by sweeping the potential of a working electrode relative to a reference electrode while recording the resulting current. It is commonly performed with a three-electrode cell in a suitable electrolyte.
During a potentiodynamic scan, the potential is varied at a controlled rate, typically starting near the open-circuit
From polarization curves one extracts Ecorr (corrosion potential) and iCorr (corrosion current density) as measures of
Applications include evaluating corrosivity of environments for metals and coatings, assessing passivation behavior, and screening alloys.
Interpreting results requires caution: the measured iCorr depends on scan rate, surface finish, temperature, and electrolyte
Historically, potentiodynamic polarization emerged in the mid-20th century as a practical extension of polarization methods and