The kinetics of passivation based on the reduction of current density under potentiostatic conditions for a martensitic stainless steel

Authors

  • Godec Regina Fuchs University of Maribor, Faculty of Chemistry and Chemical Engineering, Maribor, Slovenia Author
  • Miomir G. Pavlović University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM, Serbia Author
  • Milorad V. Tomić University of East Sarajevo, Faculty of Technology, Zvornik, Republic of Srpska, B&H Author

DOI:

https://doi.org/10.5937/ZasMat1601026f

Keywords:

topochemical reactions, AISI 420, kinetic of passivation, passivation processes

Abstract

The potentiostatic method and the theory of 'topochemical reactions' in the kinetics of the active dissolution and passivation process of AISI 420 stainless steel were studied. It was found that, to a great extent, the number of conversion steps is depended on the imposed potential. The experimentally obtained results were partially explained using Okamoto's theory of passivation.

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Published

15-03-2016

Issue

Vol. 57 No. 1 (2016)

Section

Articles