Electrochemical Characteristics of Austenitic Stainless Steel in Mixed Chloride – Molybdate Solutions

  • Viera Zatkalikova
  • Lenka Markovicova
  • Anna Wrobel-Knysak
Keywords: AISI 316Ti steel, molybdate inhibitor, pitting corrosion, pitting potential, potentiodynamic polarization

Abstract

The effect of molybdate addition to chloride solutions on resistance of AISI 316Ti stainless steel to pitting corrosion was studied. Potentiodynamic polarization tests were performed in 1 M and 0.1 M chloride acidified solutions with various additions of sodium molybdate at room temperature. The presented results compare the effect of molybdate anions on quality of passive film (expressed by the pitting potential) in both chloride solutions. The pitting potential increases with the increase of inhibitor concentration. The inhibitive effect of molybdate ions is stronger in chloride solution of lower aggressiveness (0.1M).

Author Biographies

Viera Zatkalikova

Faculty of Mechanical Engineering, University of Zilina, Slovakia

Lenka Markovicova

Faculty of Mechanical Engineering, University of Zilina, Slovakia

Anna Wrobel-Knysak

Kielce University of Technology, Poland

Published
2017-04-30
How to Cite
Zatkalikova, V., Markovicova, L., & Wrobel-Knysak, A. (2017). Electrochemical Characteristics of Austenitic Stainless Steel in Mixed Chloride – Molybdate Solutions. Communications - Scientific Letters of the University of Zilina, 19(2A), 74-78. Retrieved from http://journals.uniza.sk/index.php/communications/article/view/215
Issue
Vol 19 No 2A (2017)
Section
Articles