CORROSION RESISTANCE of X12CrMoWVNbN10-1-1 STEEL in NaCl SOLUTIONS at DIFFERENT pH VALUES

Jovanka Pejić; Borut Kosec; Olga Pantić; Tatjana Volkov Husović; Matija Zorc; Milica Vlahović

doi:10.5937/podrad2501093P

Authors

Jovanka Pejić University of Belgrade, Institute of Chemistry, Technology and Metallurgy- National Institute of the Republic of Serbia, Njegoševa 12, Belgrade, Serbia http://orcid.org/0000-0002-3494-9180
Borut Kosec University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva cesta 12, Ljubljana, Slovenia http://orcid.org/0009-0001-8117-9721
Olga Pantić University of Belgrade, Institute of Chemistry, Technology and Metallurgy- National Institute of the Republic of Serbia, Njegoševa 12, Belgrade, Serbia http://orcid.org/0000-0003-4667-2585
Tatjana Volkov Husović University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, Belgrade, Serbia http://orcid.org/0000-0002-2667-5802
Matija Zorc University of Ljubljana, Faculty of Natural Sciences and Engineering, Aškerčeva cesta 12, Ljubljana, Slovenia http://orcid.org/0009-0002-8792-0549
Milica Vlahović University of Belgrade, Institute of Chemistry, Technology and Metallurgy- National Institute of the Republic of Serbia https://orcid.org/0000-0002-7893-9101

DOI:

https://doi.org/10.5937/podrad2501093P

Keywords:

Alloy steels, Corrosion, Passive layer, Electrochemical methods

Abstract

The influence of pH on the corrosion behavior of X12CrMoWVNbN10-1-1 steel was examined in 0.1 M NaCl solution. The rate of general (uniform) corrosion of the tested steel was determined using linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS) methods. In the NaCl solution with a pH of 2.9, the tested steel exhibited a more negative corrosion potential and lower corrosion resistance. Significantly higher corrosion potential and resistance to general corrosion were observed in a neutral solution (pH = 6.5), where the steel was in a passive state.

CORROSION RESISTANCE of X12CrMoWVNbN10-1-1 STEEL in NaCl SOLUTIONS at DIFFERENT pH VALUES

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