Original scientific paper

Electrochemical testing of passivity state and corrosion resistance of supermartensitic stainless steels

S. Lasek ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
L. Střílková ; Material & Metallurgical Research, Ltd. Ostrava, Czech Republic
V. Číhal ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
M. Blahetová ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic

Abstract

On low interstitial - supermartensitic stainless steels (X1CrNiMo 12-5-1, X2CrNiMo 13-6-2, X1CrNiMo 12-6-2) the electrochemical potentiodynamic polarization tests were carried out and the passive state stability and localized corrosion resistance were compared and evaluated. The effect of quenching and tempering as well as the changes in microstructure on polarisation curves and corrosion properties at room temperature were established. Small differences in chemical composition of steels were also registered on their corrosion parameters changes and resistance.

Keywords

martensitic stainless steel; heat treatment; polarization test; corrosion properties

Hrčak ID:

40245

URI

https://hrcak.srce.hr/40245

Publication date:

1.1.2010.

Article data in other languages: croatian

Visits: 2.223 *