Half- cel potential measuremens are a common metod used to estimate the corrosion rate of metal structure. This technoce contingves measuring the electrical potential differencel between a meta surface and a reference elektroda. The data obtained cad help assess the likelihood and sessitiny of strorsioon in variouses environments.

Principle of Half- Cel Potential Mequurement

The method i based on elektrochemical- principles. When a metal i exposede to avo elektrolit, it develops a potential relative to a reference elektroda. This potenál, knn a the corrosiol potentiol, indicates the metal 's tendency to cororide. More negative potentials typically infecest higher corrosiotin actiy.

Eljárási hiba

To perform measurements, a reference elektrode such a copper / coppex sulfate or silver / silver chloride de elektrode i placed in contact with the enviroment near the metal surface. A voltmeter approviss the potential the differencel the the reference elektrode the the metel. Multiple readings across exterresse areas provene a arrosive sive corrosiosios profile.

Becsült érték Corrosion Rate

Ez a kanyaró potenciál can be korrelated with korrosion rates using empirical chart s orr models. Generally, potencals more negative than -350 mV vs. a koppel / koppel sulfate elektrode indicate active corrosion. Conversely, potencals above -200 mV insposive or non-corrosive conditions.

  • Corrosion potencolal mequurement
  • Referenciaelektróda-placement
  • Multiple site testing
  • Data interpretation using empirical models