Autors: Tzaneva, B. R.
Title: The influence of temperature on the corrosion behaviour of high nitrogen austenitic stainless steel in chloride media
Keywords: corrosion resistance; pitting; stainless steel; temperature; sodium chloride; anodic polarisation

Abstract: The electrochemical behaviour of high nitrogen SS in comparison of conventional grade 304 SS was examined in aqueous 3.5% chloride solution at 20-80 oC using open circuit potential vs. time, potentiodinamic and galvanostatic tests. The raising of the temperature was found to have no important influence on the corrosion potential, but destabilise the passive film formation on both steels. At the critical value of anodic polarisation the passive films were damaged and pitting corrosion occurs at lower potential with the increasing of temperature. The high nitrogen steel demonstrates faster formation of passive films, but pitting potential of this steel is more sensitive to temperature changes in comparison with those of chromium-nickel one. The temperature has slight influence on repassivation process, which is generally steel composition dependent. At all experimental conditions the nitrogen steel has greater difficulty to repassivate.

References

    Issue

    Bulgarian Chemical Communications, vol. 46, issue 2, pp. 378-383, 2014, Bulgaria, ISBN ISSN: 0324-1130

    Цитирания (Citation/s):
    1. Poonguzhali, A., et al. "Corrosion Fatigue Behavior of 316LN SS in Acidified Sodium Chloride Solution at Applied Potential.", JOM: the journal of the Minerals, Metals & Materials Society 67(5) (2015)1162-1175. - 2015 - в издания, индексирани в Scopus или Web of Science
    2. Borgioli, F., Galvanetto, E., Bacci, T., Corrosion behaviour of low temperature nitrided nickel-free, AISI 200 and AISI 300 series austenitic stainless steels in NaCl solution, Corrosion Science 136 (2018) 352-365 - 2018 - в издания, индексирани в Scopus или Web of Science

    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus