journal article·2016-01

Polarization measurements from a rotating disc electrode for characterization of magnesium corrosion

Iñigo Marco, Omer Van der Biest

Corrosion Science· Volume 102
Publisher page

Abstract

Abstract Degradation of pure Mg is characterized by potentiodynamic polarization using a rotating disc electrode (RDE) where the Mg sample is placed. The rotation makes a fluid flow which removes dissolved Mg2+ from the Mg surface surrounding reducing the corrosion layer precipitation. This reduces the influence of corrosion products which accelerate the cathodic activity during anodic polarization. The results are in agreement with the enhanced catalytic surface theory. The use of the RDE gives highly reproducible results at higher rotation speeds than 1500 rpm and the scan rate does not have any influence on consecutive polarisations when higher than 5 mV/s.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Magnesium Oxide Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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