Aqueous Polarization Measurement
Aqueous polarization measurement is an electrochemical test method that analyzes the corrosion behavior of metals in liquids. It measures current-voltage curves and provides quantitative data on corrosion kinetics.
Physical-Chemical Mechanism of Action
The measurement measures the electric current flowing through a metal specimen electrode when placed in a liquid. The voltage at the electrode varies, and the current response is recorded. This reveals the metal's behavior against corrosion.
Metallurgical Relevance & Welding Risks
This measurement helps in selecting appropriate protective measures and optimizing welding processes to avoid corrosion. Wrong values can lead to inaccurate results, affecting metal quality.
Workshop Practice & Instructions
Use a proper polarization measurement setup and follow manufacturer specs. Ensure the electrode is clean and the liquid is correctly dosed. Perform the measurement at constant temperatures for accurate results.