Towards high throughput corrosion screening using arrays of bipolar electrodes

作者: Sara Munktell , Leif Nyholm , Fredrik Björefors

DOI: 10.1016/J.JELECHEM.2015.04.008

关键词: Composite materialPitting corrosionCurrent densityAnalytical chemistryPitting resistance equivalent numberElectrochemical cellCorrosionElectrodeChemistryBipolar electrochemistryElectrochemical potentialElectrochemistryGeneral Chemical Engineering

摘要: In this work we demonstrate the possibility of combining bipolar electrochemistry with arrays samples as a fast and versatile method for comparing their corrosion resistances at wide range potentials. Several steel different grades were arranged in electrochemical cell exposed to an electric field by applying constant current. The gradient potential difference across each sample resulted pitting on anodic parts which was used simple, straightforward qualitative screening properties several one single experiment. cell, all acted individual electrodes but interestingly, current density also found be influenced its neighbours. Results from array compared standard polarisation curves resistance equivalent number (PREN) type.

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