Alternating voltage induced oscillation on electrochemical behavior and pitting corrosion in duplex stainless steel 2205
Document Type
Journal Article
Publication Title
Materials and Corrosion
Publisher
Wiley-VCH Verlag
School
School of Engineering
RAS ID
28384
Abstract
Potentiodynamic polarization and potentiostatic passive measurements were performed to study the effects of alternating voltage (AV) interference on duplex stainless steel (DSS) 2205 corrosion. The results reveal that AV signals cause positive shift in open circuit potential (OCP) and strong oscillations on polarization curves of DSS 2205. For potentiostatic passive condition, the passive current increases with increasing the amplitude of AV signals with a frequency of 50 Hz. The vibrations on polarization and passivation are weakened after increase in frequency (>50 Hz). AV signals with frequency smaller than 50 Hz also induce evident oscillation on OCP, polarization, and passivation on samples. The high-amplitude AV interferences with 50 and 100 Hz induce big pits on DSS 2205 samples, the pitting corrosion however is inhibited with further increasing the frequency. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI
10.1002/maco.201810438
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Comments
Dai, N., Wu, J., Zhang, L. -., Sun, Y., Liu, Y., Yang, Y., . . . Li, J. (2019). Alternating voltage induced oscillation on electrochemical behavior and pitting corrosion in duplex stainless steel 2205. Materials and Corrosion, 70(3), 419-433. Available here.