II. Fundamental Electrochemical Methods for Corrosion－Polarization Curve（i-V Curve）－

Abstract

Polarization curve is one of many important electrochemical measurements. The polarization curve is the indispensable measurement for evaluating or understanding the corrosion behavior. The purpose on writing is to understand the relationship between the current and potential. The corrosion rate is calculated by the data of polarization behavior. The technique of Tafel extrapolation method and polarization resistance method from the polarization curve is used to find the corrosion rate.