Corrosion behavior of Eurofer 97 and ODS-Eurofer alloys compared to traditional stainless steels

Abstract

In the present work, the corrosion resistance of ferritic-martensitic EUROFER 97 and ODS-EUROFER steels was tested in solutions containing NaCl or H 2 SO 4 and KSCN, both at 25°C. The results were compared to those of AISI 430 ferritic and AISI 410 martensitic conventional stainless steels. The as-received samples were tested by electrochemical techniques, specifically, electrochemical impedance spectroscopy, potentiodynamic polarization curves, and double-loop electrochemical potentiokinetic reactivation tests. The surfaces were observed by scanning electron microscopy after exposure to corrosive media. The results showed that EUROFER 97 and ODS-EUROFER alloys present similar corrosion resistance but lower than ferritic AISI 430 and martensitic 410 stainless steels.

Corrosion Behavior and Mechanical Properties of New Developed Oxide Precipitation Hardened Steels

“…Although the corrosion behavior of ODS alloys is well studied in molten fluoride salts [11], liquid lead [12], lead-bismuth eutectic (LBE) [12], supercritical pressurized water (SCPW) [13], the general corrosion behavior of these group of materials at room temperature is not fully evaluated. Terada et al [14] reported that the corrosion resistance of Eurofer 97 steel decreased with the percentage of oxides dispersion.…”