PT Journal
AU Zatkalikova, V
   Markovicova, L
   Liptakova, T
   Vasko, A
TI Corrosion Behavior of AISI 304 Stainless Steel in Aggressive Chloride Environment
SO Manufacturing Technology Journal
PY 2017
BP 639
EP 643
VL 17
IS 4
DI 10.21062/ujep/x.2017/a/1213-2489/MT/17/4/639
DE Cr-Ni stainless steel; Pitting corrosion; Electropolishing; Cyclic potentiodynamic test
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.
ER