Electrochemical Corrosion Testing

All corrosion is an electrochemical process of oxidation and reduction reactions. As corrosion occurs, electrons are released by the metal (oxidation) and gained by elements (reduction) in the corroding solution. Electrochemical corrosion testing measures and/or control the flow of electrons (current) between the sample and an electrode placed in the electrolyte solutions in the corrosion reaction. It can be used to characterize the corrosive properties and predict the service life of metallic materials used in electronics, chemical and petrochemical, construction and other industries.

Test Solutions

• Stainless steel pitting potential test
• Crevice corrosion resistance measurements
• Electrochemical critical pitting temperature testing
• Potentiodynamic anodic polarization measurements
• Potentiodynamic polarization resistance measurements
• Cyclic potentiodynamic polarization measurements
• Linear polarization resistance measurements
• Electrochemical potentiokinetic reactivation (EPR) measurements
• Corrosion rate measurement and calculation
• Galvanic corrosion test
• Corrosion potentials measurements
• Electrochemical impedance test
• High-temperature electrochemical testing

Applications

• Analysis of finished medical devices for pitting and crevice corrosion susceptibility
• Comparison of raw materials (screening) for corrosion characteristics
• Evaluating effect of passivation or surface modifications on corrosive behavior
• Evaluate/Compare processing effects on corrosion properties
• Evaluate bimetal combinations for galvanic corrosion behavior

STEMart's expert team can advise on which test is best for your specific requirements depending on the project goal. For more information about our electrochemical corrosion testing services, please contact us.