Differences between apparent polarization resistance values obtained in the time and frequency domains
1995
Feliú Jr., S. | Galván Sierra, Juan Carlos | Feliú Jr., S. | Simancas Peco, Joaquín | Bastidas Rull, José María | Morcillo, Manuel | Almeida, E.
Anomalously large differences between values of the polarization resistance Rp measured in the time and frequency domains pose a serious problem in determination of the corrosion rate from the Stern-Geary equation. A theoretical model is used to derive expressions for a quantitative interpretation of the effect of a number of parameters on the apparent Rp values obtained by dc and ac measurements. Problems associated with the determination of the true Rp value are discussed, and some relevant questions concerning the minimum frequency needed for impedance measurements are identified. © 1995.
Show more [+] Less [-]Peer Reviewed
Show more [+] Less [-]Bibliographic information
This bibliographic record has been provided by Centro Nacional de Investigaciones Metalúrgicas