RT Journal Article
SR Electronic
A1 Zatkalíková, Viera
A1 Markovičová, Lenka
A1 Liptáková, Tatiana
A1 Vaško, Alan
T1 Corrosion Behavior of AISI 304 Stainless Steel in Aggressive Chloride Environment
JF Manufacturing Technology Journal
YR 2017
VO 17
IS 4
SP 639
OP 643
DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/4/639
UL https://journalmt.com/artkey/mft-201704-0040.php
AB Cr-Ni stainless steels are commonly used for construction of various equipments exposed to halides containing media, which can act aggressively and cause a serious local corrosion damage of these materials. This article focuses on the resistence of AISI 304 stainless steel to the pitting corrosion in 1 M acidified chloride solution represented by mixture 0.9M NaCl + 0.1M HCl, at the ambient temperature of 22 ± 3 °C. An evaluation of the pitting corrosion resistance was based on the cyclic potentiodynamic polarization tests performed on three types of steel surfaces: "as received", electropolished and ground + electropolished surfaces. The pitting potentials were determined and compared. Pitted surfaces after potentiodynamic polarization tests were observed by the optical microscope.