Journal
CORROSION SCIENCE
Volume 59, Issue -, Pages 96-102Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2012.02.026
Keywords
Stainless steel; EIS; Polarisation; Potentiostatic; Pitting corrosion; Passivity
Funding
- Ferdowsi University of Mashhad
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In this study critical pitting temperature (CPT) of two stainless steels is compared using EIS, potentiodynamic and potentiostatic techniques. Two types of stainless steels including DSS2205 and 20Cr-28Ni were chosen. EIS measurements were carried at anodic potential of 600 mV/SCE and the results were compared with those of potentiodynamic and potentiostatic polarisations. The results revealed that the CPT of DSS2205 and 20Cr-28Ni was between 45-55 degrees C and 35-45 degrees C in potentiodynamic polarisation, respectively. It was 60 and 55 degrees C for potentiostatic method and between 55-60 degrees C and 45-55 degrees C in EIS method for DSS2205 and 20Cr-28Ni, respectively. (C) 2012 Elsevier Ltd. All rights reserved.
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